VAstrophoto de FredWeber
Règles du forum
Tout ce qui a été postprocessé d'une façon ou d'une autre, c'est ici que ça se passe.
Pour vos transferts de fichiers FITS, vous pouvez utiliser notre service de partage : https://transfert.astro-va.fr/
Password : astronomie-va
Tout ce qui a été postprocessé d'une façon ou d'une autre, c'est ici que ça se passe.
Pour vos transferts de fichiers FITS, vous pouvez utiliser notre service de partage : https://transfert.astro-va.fr/
Password : astronomie-va
- FredWeber
- Messages : 389
- Inscription : 14 sept. 2025, 11:25
- Localisation : Chancelade à Coté de Périgueux (dept24)
VAstrophoto de FredWeber
Et au passage j'avais oublié de vous partager celles ci....
M42 en 10x30 s[ avec la SV705 Gain 300 Offset 50 + Filtre UHC Même si les poses sont relativement courtes je trouve encore le coeur trop exposé.
A refaire avec une gain diminué voire une temps encore réduit ouis essayer de recombiner en mode HDR sous photoshop ou Gimp.
Pour Ic 434 j'ai retenté suite à mon essai monochrome. Toujours Gain 300 et offst 50 + Filtre UHC
... Là pour le coup c'est le contraire. Je trouve qu'il n'y a pas assez de signal...
..
Tojours dans le voisinage je suis allé faire un tour vers la nébuleuse de la flamme...
Tojours 10x30s.. + Filtre UHC Pour celle ci je me demande comment réussir à ressortir + de contraste sur la nébuleuse sans cramer complêtement la belle étoile Alnitak qui se trouve dans le champ.
Est ce que mode HDR pourrait convenir ? .... Encore des test à faire..
Et pour finir cette session du 28 jan je suis allé faire une tour dans le triangle pour retenter M33. Je me suis vriament cassé la tête pour réussir à avoir du contraste sur la galaxie et du coup le fond du ciel est hyper moche.
Je pense que ça vient du prétraitement et que mes flats sont vraiment nuls.
M42 en 10x30 s[ avec la SV705 Gain 300 Offset 50 + Filtre UHC Même si les poses sont relativement courtes je trouve encore le coeur trop exposé.
A refaire avec une gain diminué voire une temps encore réduit ouis essayer de recombiner en mode HDR sous photoshop ou Gimp.
Pour Ic 434 j'ai retenté suite à mon essai monochrome. Toujours Gain 300 et offst 50 + Filtre UHC
... Là pour le coup c'est le contraire. Je trouve qu'il n'y a pas assez de signal...
..
Tojours dans le voisinage je suis allé faire un tour vers la nébuleuse de la flamme...
Tojours 10x30s.. + Filtre UHC Pour celle ci je me demande comment réussir à ressortir + de contraste sur la nébuleuse sans cramer complêtement la belle étoile Alnitak qui se trouve dans le champ.
Est ce que mode HDR pourrait convenir ? .... Encore des test à faire..
Et pour finir cette session du 28 jan je suis allé faire une tour dans le triangle pour retenter M33. Je me suis vriament cassé la tête pour réussir à avoir du contraste sur la galaxie et du coup le fond du ciel est hyper moche.
Je pense que ça vient du prétraitement et que mes flats sont vraiment nuls.
- Opmc73
- Messages : 4403
- Inscription : 03 juil. 2024, 21:03
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- FredWeber
- Messages : 389
- Inscription : 14 sept. 2025, 11:25
- Localisation : Chancelade à Coté de Périgueux (dept24)
VAstrophoto de FredWeber
C'est éxactement ce que je me disais... refaire un prétraitement sans le flat (qui est vraiement foireux) et fe retirer le gradient sur la séquence avant l'empilage final.
C'est comme ça que j'ai procédé pour IC1795 car le fond de ciel était vraiment trop moche .
De tte façon je pense aussi refire toutes ces cibles en changeant le fitre UHC (qui donne une dominante violette vraiment étrange) par le fitre CLS...
- FredWeber
- Messages : 389
- Inscription : 14 sept. 2025, 11:25
- Localisation : Chancelade à Coté de Périgueux (dept24)
- FredWeber
- Messages : 389
- Inscription : 14 sept. 2025, 11:25
- Localisation : Chancelade à Coté de Périgueux (dept24)
VAstrophoto de FredWeber
IC-410 Le Têtard
J'ai tenté de cumuler 3h de pose pour au final n'en garder que 2.
Fait en 2 sessions entre le 28/02 et le 02/03
PROGRAM = 'Siril 1.4.2' / Software that created this HDU
DATE = '2026-03-05T21:58:07' / UTC date that FITS file was created
DATE-OBS= '2026-02-28T21:18:02.446000' / YYYY-MM-DDThh:mm:ss observation start,
IMAGETYP= 'Light Frame' / Type of image
ROWORDER= 'TOP-DOWN' / Order of the rows in image array
EXPTIME = 60. / s Exposure time duration
TELESCOP= 'SkyWatcher Freds 600@F\4 600@F\4.0' / Telescope used to acquire this
FOCALLEN= 595.636 / [mm] Focal length
CENTALT = 58.65278 / [deg] Altitude of telescope
CENTAZ = 261.2707 / [deg] Azimuth of telescope
XBINNING= 1 / Camera binning mode
YBINNING= 1 / Camera binning mode
XPIXSZ = 2.9 / [um] Pixel X axis size
YPIXSZ = 2.9 / [um] Pixel Y axis size
INSTRUME= 'SVBONY CCD SV705C' / Instrument name
GAIN = 350 / Sensor gain
OFFSET = 25 / Sensor gain offset
STACKCNT= 120 / Stack frames
LIVETIME= 7200. / s Exposure time after deadtime correction
EXPSTART= 2461100.38676659 / [JD] Exposure start time (standard Julian date)
EXPEND = 2461102.39837374 / [JD] Exposure end time (standard Julian date)
COMMENT Generated by INDI
END
J'ai tenté de cumuler 3h de pose pour au final n'en garder que 2.
Fait en 2 sessions entre le 28/02 et le 02/03
PROGRAM = 'Siril 1.4.2' / Software that created this HDU
DATE = '2026-03-05T21:58:07' / UTC date that FITS file was created
DATE-OBS= '2026-02-28T21:18:02.446000' / YYYY-MM-DDThh:mm:ss observation start,
IMAGETYP= 'Light Frame' / Type of image
ROWORDER= 'TOP-DOWN' / Order of the rows in image array
EXPTIME = 60. / s Exposure time duration
TELESCOP= 'SkyWatcher Freds 600@F\4 600@F\4.0' / Telescope used to acquire this
FOCALLEN= 595.636 / [mm] Focal length
CENTALT = 58.65278 / [deg] Altitude of telescope
CENTAZ = 261.2707 / [deg] Azimuth of telescope
XBINNING= 1 / Camera binning mode
YBINNING= 1 / Camera binning mode
XPIXSZ = 2.9 / [um] Pixel X axis size
YPIXSZ = 2.9 / [um] Pixel Y axis size
INSTRUME= 'SVBONY CCD SV705C' / Instrument name
GAIN = 350 / Sensor gain
OFFSET = 25 / Sensor gain offset
STACKCNT= 120 / Stack frames
LIVETIME= 7200. / s Exposure time after deadtime correction
EXPSTART= 2461100.38676659 / [JD] Exposure start time (standard Julian date)
EXPEND = 2461102.39837374 / [JD] Exposure end time (standard Julian date)
COMMENT Generated by INDI
END
- FredWeber
- Messages : 389
- Inscription : 14 sept. 2025, 11:25
- Localisation : Chancelade à Coté de Périgueux (dept24)
VAstrophoto de FredWeber
M81
ROGRAM = 'Siril 1.4.2' / Software that created this HDU
DATE = '2026-03-19T22:45:18' / UTC date that FITS file was created
DATE-OBS= '2026-03-18T00:15:06.378000' / YYYY-MM-DDThh:mm:ss observation start,
IMAGETYP= 'Light Frame' / Type of image
ROWORDER= 'TOP-DOWN' / Order of the rows in image array
EXPTIME = 60. / s Exposure time duration
TELESCOP= 'SkyWatcher Freds 600@F\4 600@F\4.0' / Telescope used to acquire this
FILTER = 'UHC ' / Active filter name
FOCALLEN= 595.623 / [mm] Focal length
CENTALT = 61.56999 / [deg] Altitude of telescope
CENTAZ = 337.333 / [deg] Azimuth of telescope
XBINNING= 1 / Camera binning mode
YBINNING= 1 / Camera binning mode
XPIXSZ = 2.9 / [um] Pixel X axis size
YPIXSZ = 2.9 / [um] Pixel Y axis size
INSTRUME= 'SVBONY CCD SV705C' / Instrument name
GAIN = 350 / Sensor gain
OFFSET = 50 / Sensor gain offset
STACKCNT= 6 / Stack frames
LIVETIME= 540. / s Exposure time after deadtime correction
DATE = '2026-03-19T22:45:18' / UTC date that FITS file was created
DATE-OBS= '2026-03-18T00:15:06.378000' / YYYY-MM-DDThh:mm:ss observation start,
IMAGETYP= 'Light Frame' / Type of image
ROWORDER= 'TOP-DOWN' / Order of the rows in image array
EXPTIME = 60. / s Exposure time duration
TELESCOP= 'SkyWatcher Freds 600@F\4 600@F\4.0' / Telescope used to acquire this
FILTER = 'UHC ' / Active filter name
FOCALLEN= 595.623 / [mm] Focal length
CENTALT = 61.56999 / [deg] Altitude of telescope
CENTAZ = 337.333 / [deg] Azimuth of telescope
XBINNING= 1 / Camera binning mode
YBINNING= 1 / Camera binning mode
XPIXSZ = 2.9 / [um] Pixel X axis size
YPIXSZ = 2.9 / [um] Pixel Y axis size
INSTRUME= 'SVBONY CCD SV705C' / Instrument name
GAIN = 350 / Sensor gain
OFFSET = 50 / Sensor gain offset
STACKCNT= 6 / Stack frames
LIVETIME= 540. / s Exposure time after deadtime correction
- FredWeber
- Messages : 389
- Inscription : 14 sept. 2025, 11:25
- Localisation : Chancelade à Coté de Périgueux (dept24)
VAstrophoto de FredWeber
NC2359
SIMPLE = T / file does conform to FITS standard
PROGRAM = 'Siril 1.4.2' / Software that created this HDU
DATE = '2026-03-19T23:21:21' / UTC date that FITS file was created
DATE-OBS= '2026-03-17T21:12:30.502000' / YYYY-MM-DDThh:mm:ss observation start,
IMAGETYP= 'Light Frame' / Type of image
ROWORDER= 'TOP-DOWN' / Order of the rows in image array
EXPTIME = 60. / s Exposure time duration
TELESCOP= 'SkyWatcher Freds 600@F\4 600@F\4.0' / Telescope used to acquire this
FILTER = 'mixed ' / Active filter name
FOCALLEN= 595.409 / [mm] Focal length
CENTALT = 27.4205 / [deg] Altitude of telescope
CENTAZ = 207.106 / [deg] Azimuth of telescope
XBINNING= 1 / Camera binning mode
YBINNING= 1 / Camera binning mode
XPIXSZ = 2.9 / [um] Pixel X axis size
YPIXSZ = 2.9 / [um] Pixel Y axis size
INSTRUME= 'SVBONY CCD SV705C' / Instrument name
GAIN = 350 / Sensor gain
OFFSET = 50 / Sensor gain offset
STACKCNT= 52 / Stack frames
LIVETIME= 3120. / s Exposure time after deadtime correction
EXPSTART= 2461117.38142825 / [JD] Exposure start time (standard Julian date)
EXPEND = 2461117.43055609 / [JD] Exposure end time (standard Julian date)
OBJECT = 'NGC 2359' / Name of the object of interest
END
SIMPLE = T / file does conform to FITS standard
PROGRAM = 'Siril 1.4.2' / Software that created this HDU
DATE = '2026-03-19T23:21:21' / UTC date that FITS file was created
DATE-OBS= '2026-03-17T21:12:30.502000' / YYYY-MM-DDThh:mm:ss observation start,
IMAGETYP= 'Light Frame' / Type of image
ROWORDER= 'TOP-DOWN' / Order of the rows in image array
EXPTIME = 60. / s Exposure time duration
TELESCOP= 'SkyWatcher Freds 600@F\4 600@F\4.0' / Telescope used to acquire this
FILTER = 'mixed ' / Active filter name
FOCALLEN= 595.409 / [mm] Focal length
CENTALT = 27.4205 / [deg] Altitude of telescope
CENTAZ = 207.106 / [deg] Azimuth of telescope
XBINNING= 1 / Camera binning mode
YBINNING= 1 / Camera binning mode
XPIXSZ = 2.9 / [um] Pixel X axis size
YPIXSZ = 2.9 / [um] Pixel Y axis size
INSTRUME= 'SVBONY CCD SV705C' / Instrument name
GAIN = 350 / Sensor gain
OFFSET = 50 / Sensor gain offset
STACKCNT= 52 / Stack frames
LIVETIME= 3120. / s Exposure time after deadtime correction
EXPSTART= 2461117.38142825 / [JD] Exposure start time (standard Julian date)
EXPEND = 2461117.43055609 / [JD] Exposure end time (standard Julian date)
OBJECT = 'NGC 2359' / Name of the object of interest
END
- FredWeber
- Messages : 389
- Inscription : 14 sept. 2025, 11:25
- Localisation : Chancelade à Coté de Périgueux (dept24)
VAstrophoto de FredWeber
Brute de décoffrage avec un ajustement des couleurs et un etirage "auto" ..
Sur les 60min prévues je n'en ai gardé que 43 à cause des décalages du au guidage et du passage de satellites
PROGRAM = 'Siril 1.4.2' / Software that created this HDU
DATE = '2026-04-05T08:24:04' / UTC date that FITS file was created
DATE-OBS= '2026-04-04T20:22:39.195000' / YYYY-MM-DDThh:mm:ss observation start,
IMAGETYP= 'Light Frame' / Type of image
ROWORDER= 'TOP-DOWN' / Order of the rows in image array
EXPTIME = 60. / s Exposure time duration
TELESCOP= 'SkyWatcher Freds 600@F\4 600@F\4.0' / Telescope used to acquire this
FILTER = 'CLS ' / Active filter name
FOCALLEN= 603.456637509753 / [mm] Focal length
CENTALT = 78.2388 / [deg] Altitude of telescope
CENTAZ = 104.2958 / [deg] Azimuth of telescope
XBINNING= 1 / Camera binning mode
YBINNING= 1 / Camera binning mode
XPIXSZ = 2.9 / [um] Pixel X axis size
YPIXSZ = 2.9 / [um] Pixel Y axis size
INSTRUME= 'SVBONY CCD SV705C' / Instrument name
GAIN = 350 / Sensor gain
OFFSET = 50 / Sensor gain offset
STACKCNT= 42 / Stack frames
LIVETIME= 2520. / s Exposure time after deadtime correction
OBJECT = 'NGC 3184' / Name of the object of interest
AIRMASS = 1.021415 / Airmass at frame center (Gueymard 1993)
SITELAT = 45.20194 / [deg] Observation site latitude
SITELONG= 0.6611111 / [deg] Observation site longitude
OBJCTRA = '10 18 17.319' / [H M S] Image center Right Ascension
OBJCTDEC= '+41 25 31.890' / [D M S] Image center Declination
HISTORY mean stacking with winsorized sigma clipping rejection (low=3.000 high=3
HISTORY .000), additive normalized input, unnormalized output, no image weightin
HISTORY g, unequalized RGB, filter selected
HISTORY Converti en profil ICC : linear TRC from sRGB-elle-V4-srgbtrc.icc
HISTORY Converti en profil ICC : linear TRC from sRGB-elle-V4-srgbtrc.icc
HISTORY Converti en profil ICC : linear TRC from sRGB-elle-V4-srgbtrc.icc
HISTORY Photom trie CC (algorithme : PCC)
HISTORY GHS pivot : 0.061, montant : 4.49, local : -3.52 [0.00 1.00]
HISTORY Transf. histogramme (mid=0.094, lo=0.082, hi=1.000)
HISTORY Transf. histogramme (mid=0.138, lo=0.042, hi=1.000)
END
Sur les 60min prévues je n'en ai gardé que 43 à cause des décalages du au guidage et du passage de satellites
PROGRAM = 'Siril 1.4.2' / Software that created this HDU
DATE = '2026-04-05T08:24:04' / UTC date that FITS file was created
DATE-OBS= '2026-04-04T20:22:39.195000' / YYYY-MM-DDThh:mm:ss observation start,
IMAGETYP= 'Light Frame' / Type of image
ROWORDER= 'TOP-DOWN' / Order of the rows in image array
EXPTIME = 60. / s Exposure time duration
TELESCOP= 'SkyWatcher Freds 600@F\4 600@F\4.0' / Telescope used to acquire this
FILTER = 'CLS ' / Active filter name
FOCALLEN= 603.456637509753 / [mm] Focal length
CENTALT = 78.2388 / [deg] Altitude of telescope
CENTAZ = 104.2958 / [deg] Azimuth of telescope
XBINNING= 1 / Camera binning mode
YBINNING= 1 / Camera binning mode
XPIXSZ = 2.9 / [um] Pixel X axis size
YPIXSZ = 2.9 / [um] Pixel Y axis size
INSTRUME= 'SVBONY CCD SV705C' / Instrument name
GAIN = 350 / Sensor gain
OFFSET = 50 / Sensor gain offset
STACKCNT= 42 / Stack frames
LIVETIME= 2520. / s Exposure time after deadtime correction
OBJECT = 'NGC 3184' / Name of the object of interest
AIRMASS = 1.021415 / Airmass at frame center (Gueymard 1993)
SITELAT = 45.20194 / [deg] Observation site latitude
SITELONG= 0.6611111 / [deg] Observation site longitude
OBJCTRA = '10 18 17.319' / [H M S] Image center Right Ascension
OBJCTDEC= '+41 25 31.890' / [D M S] Image center Declination
HISTORY mean stacking with winsorized sigma clipping rejection (low=3.000 high=3
HISTORY .000), additive normalized input, unnormalized output, no image weightin
HISTORY g, unequalized RGB, filter selected
HISTORY Converti en profil ICC : linear TRC from sRGB-elle-V4-srgbtrc.icc
HISTORY Converti en profil ICC : linear TRC from sRGB-elle-V4-srgbtrc.icc
HISTORY Converti en profil ICC : linear TRC from sRGB-elle-V4-srgbtrc.icc
HISTORY Photom trie CC (algorithme : PCC)
HISTORY GHS pivot : 0.061, montant : 4.49, local : -3.52 [0.00 1.00]
HISTORY Transf. histogramme (mid=0.094, lo=0.082, hi=1.000)
HISTORY Transf. histogramme (mid=0.138, lo=0.042, hi=1.000)
END
- FredWeber
- Messages : 389
- Inscription : 14 sept. 2025, 11:25
- Localisation : Chancelade à Coté de Périgueux (dept24)
VAstrophoto de FredWeber
Et Deuxième prise de la soirée ... M51 54prise de 60s
BSCALE = 1. / Default scaling factor
PROGRAM = 'Siril 1.4.2' / Software that created this HDU
DATE = '2026-04-05T09:02:18' / UTC date that FITS file was created
DATE-OBS= '2026-04-04T21:56:00.171000' / YYYY-MM-DDThh:mm:ss observation start,
IMAGETYP= 'Light Frame' / Type of image
ROWORDER= 'TOP-DOWN' / Order of the rows in image array
EXPTIME = 60. / s Exposure time duration
TELESCOP= 'SkyWatcher Freds 600@F\4 600@F\4.0' / Telescope used to acquire this
FILTER = 'CLS ' / Active filter name
FOCALLEN= 603.422016963423 / [mm] Focal length
CENTALT = 62.77758 / [deg] Altitude of telescope
CENTAZ = 71.66416 / [deg] Azimuth of telescope
INSTRUME= 'SVBONY CCD SV705C' / Instrument name
GAIN = 350 / Sensor gain
OFFSET = 50 / Sensor gain offset
STACKCNT= 54 / Stack frames
LIVETIME= 3240. / s Exposure time after deadtime correction
OBJECT = 'NGC 5195' / Name of the object of interest
AIRMASS = 1.124361 / Airmass at frame center (Gueymard 1993)
SITELAT = 45.20194 / [deg] Observation site latitude
SITELONG= 0.6611111 / [deg] Observation site longitude
OBJCTRA = '13 30 0.574' / [H M S] Image center Right Ascension
OBJCTDEC= '+47 15 55.135' / [D M S] Image center Declination
HISTORY mean stacking with winsorized sigma clipping rejection (low=3.000 high=3
HISTORY .000), additive+scaling normalized input, unnormalized output, no image
HISTORY weighting, equalized RGB, filter selected
HISTORY Profil ICC attribu : sRGB-elle-V4-srgbtrc.icc
HISTORY Transf. histogramme (mid=0.012, lo=0.062, hi=1.000)
HISTORY Photom trie CC (algorithme : PCC)
COMMENT Generated by INDI
END
BSCALE = 1. / Default scaling factor
PROGRAM = 'Siril 1.4.2' / Software that created this HDU
DATE = '2026-04-05T09:02:18' / UTC date that FITS file was created
DATE-OBS= '2026-04-04T21:56:00.171000' / YYYY-MM-DDThh:mm:ss observation start,
IMAGETYP= 'Light Frame' / Type of image
ROWORDER= 'TOP-DOWN' / Order of the rows in image array
EXPTIME = 60. / s Exposure time duration
TELESCOP= 'SkyWatcher Freds 600@F\4 600@F\4.0' / Telescope used to acquire this
FILTER = 'CLS ' / Active filter name
FOCALLEN= 603.422016963423 / [mm] Focal length
CENTALT = 62.77758 / [deg] Altitude of telescope
CENTAZ = 71.66416 / [deg] Azimuth of telescope
INSTRUME= 'SVBONY CCD SV705C' / Instrument name
GAIN = 350 / Sensor gain
OFFSET = 50 / Sensor gain offset
STACKCNT= 54 / Stack frames
LIVETIME= 3240. / s Exposure time after deadtime correction
OBJECT = 'NGC 5195' / Name of the object of interest
AIRMASS = 1.124361 / Airmass at frame center (Gueymard 1993)
SITELAT = 45.20194 / [deg] Observation site latitude
SITELONG= 0.6611111 / [deg] Observation site longitude
OBJCTRA = '13 30 0.574' / [H M S] Image center Right Ascension
OBJCTDEC= '+47 15 55.135' / [D M S] Image center Declination
HISTORY mean stacking with winsorized sigma clipping rejection (low=3.000 high=3
HISTORY .000), additive+scaling normalized input, unnormalized output, no image
HISTORY weighting, equalized RGB, filter selected
HISTORY Profil ICC attribu : sRGB-elle-V4-srgbtrc.icc
HISTORY Transf. histogramme (mid=0.012, lo=0.062, hi=1.000)
HISTORY Photom trie CC (algorithme : PCC)
COMMENT Generated by INDI
END
- Olivier-Fantasy
- Messages : 10536
- Inscription : 14 oct. 2020, 23:03
- Localisation : Région parisienne (92)
VAstrophoto de FredWeber
Sacré gradient ! Pas facile avec la lune à côté !
Gradient viré (autant que possible), un coup de denoise et un peu de galère pour ramener le bleu et le rouge des galaxies entremêlées :
Gradient viré (autant que possible), un coup de denoise et un peu de galère pour ramener le bleu et le rouge des galaxies entremêlées :
- FredWeber
- Messages : 389
- Inscription : 14 sept. 2025, 11:25
- Localisation : Chancelade à Coté de Périgueux (dept24)
VAstrophoto de FredWeber
..
Ce qui me fume c'est que sur toutes mes prises j'ai ce dégradé du vert vers le magenta..
Et en y repensant je me dis que ça peut venir de la PL due au parking de la zone commerciale a 1km de chez moi qui reste éclairé tte la nuit...
Dernière modification par FredWeber le 07 avr. 2026, 12:50, modifié 1 fois.
- Olivier-Fantasy
- Messages : 10536
- Inscription : 14 oct. 2020, 23:03
- Localisation : Région parisienne (92)
VAstrophoto de FredWeber
Moi aussi, mais je sais d'où il vient : toute une avenue pleine de lampadaire juste sur ma gauche, et une super façade blanche qui les reflète pile en face de moi
- FredWeber
- Messages : 389
- Inscription : 14 sept. 2025, 11:25
- Localisation : Chancelade à Coté de Périgueux (dept24)
VAstrophoto de FredWeber
1 er test planétaire.
Un. "Jeté" de monture SW StarAdventurer,
le petit Mak90 F13 une Barlowx2 et la SV705. Empilement d'env 200 prises de 30ms au gain 260...
Un. "Jeté" de monture SW StarAdventurer,
le petit Mak90 F13 une Barlowx2 et la SV705. Empilement d'env 200 prises de 30ms au gain 260...
- Pièces jointes
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- Screenshot_20260406_214333_bVNC Free.jpg (91.49 Kio) Consulté 282 fois
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Tiyann
- Messages : 1885
- Inscription : 06 mai 2021, 19:31
- Localisation : Bzh
- FredWeber
- Messages : 389
- Inscription : 14 sept. 2025, 11:25
- Localisation : Chancelade à Coté de Périgueux (dept24)
VAstrophoto de FredWeber
J'avoue que jusqu'à présent les test photos réalisés avec étaient plutôt décevant.
Pour le coup, je lui trouve un domaine d'emploi qui semble adapté.
Pour l'instant je n'ai pas le matos mais je tenterai bien un test comparatif avec le quattro 150 en utilisant un barlow 4x de meilleure qualité ..
-
Micmac
- Messages : 7044
- Inscription : 24 nov. 2020, 08:59
VAstrophoto de FredWeber
avec une barlow, il faut également tenir compte du pouvoir séparateur lié au diamètre, i me semble que si tu passe x300 le max utile sur un 150 cela sera contre productif, une x3 me semble être le max utilisable
- FredWeber
- Messages : 389
- Inscription : 14 sept. 2025, 11:25
- Localisation : Chancelade à Coté de Périgueux (dept24)
- FredWeber
- Messages : 389
- Inscription : 14 sept. 2025, 11:25
- Localisation : Chancelade à Coté de Périgueux (dept24)
VAstrophoto de FredWeber
Mono prise de 300s
IMAGETYP= 'Light Frame' / Type of image
ROWORDER= 'BOTTOM-UP' / Order of the rows in image array
EXPTIME = 300. / s Exposure time duration
TELESCOP= 'SkyWatcher Freds 600@F\4 600@F\4.0' / Telescope used to acquire this
FILTER = 'CLS ' / Active filter name
FOCALLEN= 603.452 / [mm] Focal length
CENTALT = 63.73136 / [deg] Altitude of telescope
CENTAZ = 292.8672 / [deg] Azimuth of telescope
XBINNING= 1 / Camera binning mode
YBINNING= 1 / Camera binning mode
XPIXSZ = 2.9 / [um] Pixel X axis size
YPIXSZ = 2.9 / [um] Pixel Y axis size
INSTRUME= 'SVBONY CCD SV705C' / Instrument name
GAIN = 350 / Sensor gain
OFFSET = 50 / Sensor gain offset
OBJECT = 'NGC 2857' / Name of the object of interest
AIRMASS = 1.114984 / Airmass at frame center (Gueymard 1993)
SITELAT = 45.20194 / [deg] Observation site latitude
SITELONG= 0.6611111 / [deg] Observation site longitude
OBJCTRA = '09 24 39.040' / [H M S] Image center Right Ascension
OBJCTDEC= '+49 21 37.281' / [D M S] Image center Declination
RA = 141.162667207679 / [deg] Image center Right Ascension
DEC = 49.3603557561133 / [deg] Image center Declination
PLTSOLVD= T / Siril internal solver
HISTORY R solution astrom trique
HISTORY Miroir X
HISTORY Photom trie CC (algorithme : PCC)
HISTORY GraXpert AI BGE: subtraction
HISTORY SyQon Prism denoising
FRAME = 'Light ' / Frame Type
APTDIA = 1.500E+02 / Telescope diameter (mm)
SCALE = 9.971167E-01 / arcsecs per pixel
PIERSIDE= 'EAST ' / East, looking West
RADECSYS= 'FK5 ' / RADECSYS
SECPIX1 = 9.9711669946E-01 / SECPIX1
SECPIX2 = 9.9711669946E-01 / SECPIX2
IMAGETYP= 'Light Frame' / Type of image
ROWORDER= 'BOTTOM-UP' / Order of the rows in image array
EXPTIME = 300. / s Exposure time duration
TELESCOP= 'SkyWatcher Freds 600@F\4 600@F\4.0' / Telescope used to acquire this
FILTER = 'CLS ' / Active filter name
FOCALLEN= 603.452 / [mm] Focal length
CENTALT = 63.73136 / [deg] Altitude of telescope
CENTAZ = 292.8672 / [deg] Azimuth of telescope
XBINNING= 1 / Camera binning mode
YBINNING= 1 / Camera binning mode
XPIXSZ = 2.9 / [um] Pixel X axis size
YPIXSZ = 2.9 / [um] Pixel Y axis size
INSTRUME= 'SVBONY CCD SV705C' / Instrument name
GAIN = 350 / Sensor gain
OFFSET = 50 / Sensor gain offset
OBJECT = 'NGC 2857' / Name of the object of interest
AIRMASS = 1.114984 / Airmass at frame center (Gueymard 1993)
SITELAT = 45.20194 / [deg] Observation site latitude
SITELONG= 0.6611111 / [deg] Observation site longitude
OBJCTRA = '09 24 39.040' / [H M S] Image center Right Ascension
OBJCTDEC= '+49 21 37.281' / [D M S] Image center Declination
RA = 141.162667207679 / [deg] Image center Right Ascension
DEC = 49.3603557561133 / [deg] Image center Declination
PLTSOLVD= T / Siril internal solver
HISTORY R solution astrom trique
HISTORY Miroir X
HISTORY Photom trie CC (algorithme : PCC)
HISTORY GraXpert AI BGE: subtraction
HISTORY SyQon Prism denoising
FRAME = 'Light ' / Frame Type
APTDIA = 1.500E+02 / Telescope diameter (mm)
SCALE = 9.971167E-01 / arcsecs per pixel
PIERSIDE= 'EAST ' / East, looking West
RADECSYS= 'FK5 ' / RADECSYS
SECPIX1 = 9.9711669946E-01 / SECPIX1
SECPIX2 = 9.9711669946E-01 / SECPIX2
- FredWeber
- Messages : 389
- Inscription : 14 sept. 2025, 11:25
- Localisation : Chancelade à Coté de Périgueux (dept24)
VAstrophoto de FredWeber
M37
6x240s
PROGRAM = 'Siril 1.4.2' / Software that created this HDU
DATE = '2026-04-09T21:01:19' / UTC date that FITS file was created
DATE-OBS= '2026-04-08T20:44:27.046000' / YYYY-MM-DDThh:mm:ss observation start,
IMAGETYP= 'Light Frame' / Type of image
ROWORDER= 'TOP-DOWN' / Order of the rows in image array
EXPTIME = 240. / s Exposure time duration
TELESCOP= 'SkyWatcher Freds 600@F\4 600@F\4.0' / Telescope used to acquire this
FILTER = 'CLS ' / Active filter name
FOCALLEN= 603.379362822589 / [mm] Focal length
CENTALT = 41.78837 / [deg] Altitude of telescope
CENTAZ = 277.1164 / [deg] Azimuth of telescope
XBINNING= 1 / Camera binning mode
YBINNING= 1 / Camera binning mode
XPIXSZ = 2.9 / [um] Pixel X axis size
YPIXSZ = 2.9 / [um] Pixel Y axis size
INSTRUME= 'SVBONY CCD SV705C' / Instrument name
GAIN = 350 / Sensor gain
OFFSET = 50 / Sensor gain offset
STACKCNT= 6 / Stack frames
LIVETIME= 1440. / s Exposure time after deadtime correction
EXPSTART= 2461139.36420192 / [JD] Exposure start time (standard Julian date)
EXPEND = 2461139.38501922 / [JD] Exposure end time (standard Julian date)
OBJECT = 'M 37 ' / Name of the object of interest
AIRMASS = 1.499394 / Airmass at frame center (Gueymard 1993)
SITELAT = 45.20194 / [deg] Observation site latitude
SITELONG= 0.6611111 / [deg] Observation site longitude
OBJCTRA = '05 52 26.034' / [H M S] Image center Right Ascension
OBJCTDEC= '+32 32 45.547' / [D M S] Image center Declination
RA = 88.1084769074854 / [deg] Image center Right Ascension
DEC = 32.5459851955544 / [deg] Image center Declination
HISTORY Neutralisation du fond du ciel
FRAME = 'Light ' / Frame Type
APTDIA = 1.500E+02 / Telescope diameter (mm)
SCALE = 9.971167E-01 / arcsecs per pixel
PIERSIDE= 'EAST ' / East, looking West
RADECSYS= 'FK5 ' / RADECSYS
SECPIX1 = 9.9711669946E-01 / SECPIX1
SECPIX2 = 9.9711669946E-01 / SECPIX2
COMMENT Generated by INDI
END
6x240s
PROGRAM = 'Siril 1.4.2' / Software that created this HDU
DATE = '2026-04-09T21:01:19' / UTC date that FITS file was created
DATE-OBS= '2026-04-08T20:44:27.046000' / YYYY-MM-DDThh:mm:ss observation start,
IMAGETYP= 'Light Frame' / Type of image
ROWORDER= 'TOP-DOWN' / Order of the rows in image array
EXPTIME = 240. / s Exposure time duration
TELESCOP= 'SkyWatcher Freds 600@F\4 600@F\4.0' / Telescope used to acquire this
FILTER = 'CLS ' / Active filter name
FOCALLEN= 603.379362822589 / [mm] Focal length
CENTALT = 41.78837 / [deg] Altitude of telescope
CENTAZ = 277.1164 / [deg] Azimuth of telescope
XBINNING= 1 / Camera binning mode
YBINNING= 1 / Camera binning mode
XPIXSZ = 2.9 / [um] Pixel X axis size
YPIXSZ = 2.9 / [um] Pixel Y axis size
INSTRUME= 'SVBONY CCD SV705C' / Instrument name
GAIN = 350 / Sensor gain
OFFSET = 50 / Sensor gain offset
STACKCNT= 6 / Stack frames
LIVETIME= 1440. / s Exposure time after deadtime correction
EXPSTART= 2461139.36420192 / [JD] Exposure start time (standard Julian date)
EXPEND = 2461139.38501922 / [JD] Exposure end time (standard Julian date)
OBJECT = 'M 37 ' / Name of the object of interest
AIRMASS = 1.499394 / Airmass at frame center (Gueymard 1993)
SITELAT = 45.20194 / [deg] Observation site latitude
SITELONG= 0.6611111 / [deg] Observation site longitude
OBJCTRA = '05 52 26.034' / [H M S] Image center Right Ascension
OBJCTDEC= '+32 32 45.547' / [D M S] Image center Declination
RA = 88.1084769074854 / [deg] Image center Right Ascension
DEC = 32.5459851955544 / [deg] Image center Declination
HISTORY Neutralisation du fond du ciel
FRAME = 'Light ' / Frame Type
APTDIA = 1.500E+02 / Telescope diameter (mm)
SCALE = 9.971167E-01 / arcsecs per pixel
PIERSIDE= 'EAST ' / East, looking West
RADECSYS= 'FK5 ' / RADECSYS
SECPIX1 = 9.9711669946E-01 / SECPIX1
SECPIX2 = 9.9711669946E-01 / SECPIX2
COMMENT Generated by INDI
END
- FredWeber
- Messages : 389
- Inscription : 14 sept. 2025, 11:25
- Localisation : Chancelade à Coté de Périgueux (dept24)
VAstrophoto de FredWeber
NGC 3184
PROGRAM = 'Siril 1.4.2' / Software that created this HDU
DATE = '2026-04-09T21:24:11' / UTC date that FITS file was created
DATE-OBS= '2026-04-08T21:53:43.495000' / YYYY-MM-DDThh:mm:ss observation start,
EXPTIME = 300. / s Exposure time duration
TELESCOP= 'SkyWatcher Freds 600@F\4 600@F\4.0' / Telescope used to acquire this
FILTER = 'CLS ' / Active filter name
FOCALLEN= 603.456 / [mm] Focal length
CENTALT = 80.10973 / [deg] Altitude of telescope
CENTAZ = 251.7235 / [deg] Azimuth of telescope
XBINNING= 1 / Camera binning mode
YBINNING= 1 / Camera binning mode
XPIXSZ = 2.9 / [um] Pixel X axis size
YPIXSZ = 2.9 / [um] Pixel Y axis size
INSTRUME= 'SVBONY CCD SV705C' / Instrument name
GAIN = 350 / Sensor gain
OFFSET = 50 / Sensor gain offset
STACKCNT= 8 / Stack frames
LIVETIME= 2400. / s Exposure time after deadtime correction
EXPSTART= 2461139.41230897 / [JD] Exposure start time (standard Julian date)
EXPEND = 2461139.4409201 / [JD] Exposure end time (standard Julian date)
OBJECT = 'NGC 3180' / Name of the object of interest
AIRMASS = 1.015065 / Airmass at frame center (Gueymard 1993)
OBJCTRA = '10 18 11.754' / [H M S] Image center Right Ascension
OBJCTDEC= '+41 26 1.298' / [D M S] Image center Declination
HISTORY mean stacking with winsorized sigma clipping rejection (low=3.000 high=3
HISTORY .000), additive+scaling normalized input, unnormalized output, no image
HISTORY weighting, equalized RGB, filter all
HISTORY TOP-DOWN mirror
HISTORY GraXpert AI BGE: subtraction
HISTORY R solution astrom trique
HISTORY Miroir X
HISTORY Photom trie CC (algorithme : PCC)
HISTORY Photom trie CC (algorithme : PCC)
HISTORY GHS pivot : 0.000, montant : 17.79, local : -3.90 [0.00 1.00]
HISTORY GHS LINEAR BP : 0.15
HISTORY GHS pivot : 0.000, montant : 14.73, local : -3.52 [0.00 1.00]
HISTORY SyQon Prism denoising
FRAME = 'Light ' / Frame Type
APTDIA = 1.500E+02 / Telescope diameter (mm)
SCALE = 9.971167E-01 / arcsecs per pixel
PIERSIDE= 'EAST ' / East, looking West
RADECSYS= 'FK5 ' / RADECSYS
SECPIX1 = 9.9711669946E-01 / SECPIX1
SECPIX2 = 9.9711669946E-01 / SECPIX2
COMMENT Generated by INDI
END
PROGRAM = 'Siril 1.4.2' / Software that created this HDU
DATE = '2026-04-09T21:24:11' / UTC date that FITS file was created
DATE-OBS= '2026-04-08T21:53:43.495000' / YYYY-MM-DDThh:mm:ss observation start,
EXPTIME = 300. / s Exposure time duration
TELESCOP= 'SkyWatcher Freds 600@F\4 600@F\4.0' / Telescope used to acquire this
FILTER = 'CLS ' / Active filter name
FOCALLEN= 603.456 / [mm] Focal length
CENTALT = 80.10973 / [deg] Altitude of telescope
CENTAZ = 251.7235 / [deg] Azimuth of telescope
XBINNING= 1 / Camera binning mode
YBINNING= 1 / Camera binning mode
XPIXSZ = 2.9 / [um] Pixel X axis size
YPIXSZ = 2.9 / [um] Pixel Y axis size
INSTRUME= 'SVBONY CCD SV705C' / Instrument name
GAIN = 350 / Sensor gain
OFFSET = 50 / Sensor gain offset
STACKCNT= 8 / Stack frames
LIVETIME= 2400. / s Exposure time after deadtime correction
EXPSTART= 2461139.41230897 / [JD] Exposure start time (standard Julian date)
EXPEND = 2461139.4409201 / [JD] Exposure end time (standard Julian date)
OBJECT = 'NGC 3180' / Name of the object of interest
AIRMASS = 1.015065 / Airmass at frame center (Gueymard 1993)
OBJCTRA = '10 18 11.754' / [H M S] Image center Right Ascension
OBJCTDEC= '+41 26 1.298' / [D M S] Image center Declination
HISTORY mean stacking with winsorized sigma clipping rejection (low=3.000 high=3
HISTORY .000), additive+scaling normalized input, unnormalized output, no image
HISTORY weighting, equalized RGB, filter all
HISTORY TOP-DOWN mirror
HISTORY GraXpert AI BGE: subtraction
HISTORY R solution astrom trique
HISTORY Miroir X
HISTORY Photom trie CC (algorithme : PCC)
HISTORY Photom trie CC (algorithme : PCC)
HISTORY GHS pivot : 0.000, montant : 17.79, local : -3.90 [0.00 1.00]
HISTORY GHS LINEAR BP : 0.15
HISTORY GHS pivot : 0.000, montant : 14.73, local : -3.52 [0.00 1.00]
HISTORY SyQon Prism denoising
FRAME = 'Light ' / Frame Type
APTDIA = 1.500E+02 / Telescope diameter (mm)
SCALE = 9.971167E-01 / arcsecs per pixel
PIERSIDE= 'EAST ' / East, looking West
RADECSYS= 'FK5 ' / RADECSYS
SECPIX1 = 9.9711669946E-01 / SECPIX1
SECPIX2 = 9.9711669946E-01 / SECPIX2
COMMENT Generated by INDI
END
- FredWeber
- Messages : 389
- Inscription : 14 sept. 2025, 11:25
- Localisation : Chancelade à Coté de Périgueux (dept24)
VAstrophoto de FredWeber
Je n'ai pas trop de temps pour imager/traiter et partager en ce moment.
Je vous propose toutefois cette prise du 19/04 dernier sur IC444
18x300s avec la caméra SV705 couleur et le filtre "CLS"
(Un bon ciel et un guidage un peu amélioré en regard de mes essais précédents)
La présence dans le champ du rémanent de super nova IC443 m'incite à continuer d'exploiter cette région.
En espérant pouvoir le faire avant l'été vu qu'elle est déja assez basse...
Created with GIMP
PROGRAM = 'Siril 1.4.2' / Software that created this HDU
DATE = '2026-04-26T08:47:32' / UTC date that FITS file was created
DATE-OBS= '2026-04-19T20:55:47.728000' / YYYY-MM-DDThh:mm:ss observation start,
IMAGETYP= 'Light Frame' / Type of image
ROWORDER= 'TOP-DOWN' / Order of the rows in image array
EXPTIME = 300. / s Exposure time duration
TELESCOP= 'SkyWatcher Freds 600@F\4 600@F\4.0' / Telescope used to acquire this
FILTER = 'mixed ' / Active filter name
FOCALLEN= 603.144482574462 / [mm] Focal length
CENTALT = 30.9747 / [deg] Altitude of telescope
CENTAZ = 272.8718 / [deg] Azimuth of telescope
XPIXSZ = 2.9 / [um] Pixel X axis size
YPIXSZ = 2.9 / [um] Pixel Y axis size
INSTRUME= 'SVBONY CCD SV705C' / Instrument name
GAIN = 350 / Sensor gain
OFFSET = 50 / Sensor gain offset
STACKCNT= 18 / Stack frames
LIVETIME= 5400. / s Exposure time after deadtime correction
EXPSTART= 2461150.36143147 / [JD] Exposure start time (standard Julian date)
EXPEND = 2461150.4046026 / [JD] Exposure end time (standard Julian date)
OBJECT = 'IC 444 ' / Name of the object of interest
AIRMASS = 1.939455 / Airmass at frame center (Gueymard 1993)
SITELAT = 45.20194 / [deg] Observation site latitude
SITELONG= 0.6611111 / [deg] Observation site longitude
OBJCTRA = '06 18 35.108' / [H M S] Image center Right Ascension
OBJCTDEC= '+23 18 48.935' / [D M S] Image center Declination
RA = 94.6462839447 / [deg] Image center Right Ascension
DEC = 23.3135931134 / [deg] Image center Declination
HISTORY Profil ICC attribu : sRGB-elle-V4-srgbtrc.icc
HISTORY Transf. histogramme (mid=0.074, lo=0.350, hi=1.000)
HISTORY GHS pivot : 0.252, montant : 24.27, local : -0.61 [0.00 1.00]
COMMENT Generated by INDI
END
Je vous propose toutefois cette prise du 19/04 dernier sur IC444
18x300s avec la caméra SV705 couleur et le filtre "CLS"
(Un bon ciel et un guidage un peu amélioré en regard de mes essais précédents)
La présence dans le champ du rémanent de super nova IC443 m'incite à continuer d'exploiter cette région.
En espérant pouvoir le faire avant l'été vu qu'elle est déja assez basse...
Created with GIMP
PROGRAM = 'Siril 1.4.2' / Software that created this HDU
DATE = '2026-04-26T08:47:32' / UTC date that FITS file was created
DATE-OBS= '2026-04-19T20:55:47.728000' / YYYY-MM-DDThh:mm:ss observation start,
IMAGETYP= 'Light Frame' / Type of image
ROWORDER= 'TOP-DOWN' / Order of the rows in image array
EXPTIME = 300. / s Exposure time duration
TELESCOP= 'SkyWatcher Freds 600@F\4 600@F\4.0' / Telescope used to acquire this
FILTER = 'mixed ' / Active filter name
FOCALLEN= 603.144482574462 / [mm] Focal length
CENTALT = 30.9747 / [deg] Altitude of telescope
CENTAZ = 272.8718 / [deg] Azimuth of telescope
XPIXSZ = 2.9 / [um] Pixel X axis size
YPIXSZ = 2.9 / [um] Pixel Y axis size
INSTRUME= 'SVBONY CCD SV705C' / Instrument name
GAIN = 350 / Sensor gain
OFFSET = 50 / Sensor gain offset
STACKCNT= 18 / Stack frames
LIVETIME= 5400. / s Exposure time after deadtime correction
EXPSTART= 2461150.36143147 / [JD] Exposure start time (standard Julian date)
EXPEND = 2461150.4046026 / [JD] Exposure end time (standard Julian date)
OBJECT = 'IC 444 ' / Name of the object of interest
AIRMASS = 1.939455 / Airmass at frame center (Gueymard 1993)
SITELAT = 45.20194 / [deg] Observation site latitude
SITELONG= 0.6611111 / [deg] Observation site longitude
OBJCTRA = '06 18 35.108' / [H M S] Image center Right Ascension
OBJCTDEC= '+23 18 48.935' / [D M S] Image center Declination
RA = 94.6462839447 / [deg] Image center Right Ascension
DEC = 23.3135931134 / [deg] Image center Declination
HISTORY Profil ICC attribu : sRGB-elle-V4-srgbtrc.icc
HISTORY Transf. histogramme (mid=0.074, lo=0.350, hi=1.000)
HISTORY GHS pivot : 0.252, montant : 24.27, local : -0.61 [0.00 1.00]
COMMENT Generated by INDI
END