M8 retravaillée (reprocessed) (Joel85)

Celestial hemisphere: Southern · Constellation: Sagittarius (Sgr) · Contains: Hourglass nebula · Lagoon nebula · M 8 · NGC 6523 · NGC 6526 · NGC 6530 · The star 7Sgr · The star 9Sgr

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M8 retravaillée (reprocessed)

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M8 retravaillée (reprocessed)

La même source d'image que la toute précédente M8 publiée, retravaillée, avec quelques DOF

Cette image est avec quelques "grains" légers, mais plus de couleurs , seulement 10 minutes de pose ...et beaucoup d'enseignements sur les darks et ce qu'est véritablement un dark (les darks utilisés ici ne correspondent pas au temps de pose de + 30 secondes, pas eu le temps de les prendre ce soir là , la coupe effectuée dans une vieille bibliothèque de darks a permis de faire la selection de ces darks en fonction de la taille en octet du bruit numérique contenu dans les métadonnées des darks), ça semble être une approche intérressante pour les images APN)

Original
Final
B

B

Description: Version avec la Photometrie SIRIL ( Pour avoir les deux versions : Etalonnage couleur perso + SIRIL )
La prise de vue est de 10 minutes au total (5x1600 ISO + 100 DOF) , a faire un jour avec une heure de pose au moins
Sur la version précédente, du bleu est assez présent (vers le coeur) : très probablement le ciel bleu , la prise ayant été faite in-extremis au lever du jour , les deux derniers clichés "bruts" étant de plus en plus "bleu ciel" et très clair ... La photométrie SIRIL a corrigé ce (joli) défaut du jour qui se lève

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The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

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Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
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Status	Basic success
Started	...
Astrometry.net job	2857470
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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M8 retravaillée (reprocessed)

M8 retravaillée (reprocessed)

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M8 retravaillée (reprocessed)

M8 retravaillée (reprocessed)

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