| ACQUISITION | PARAMETRES ACQUISITION | |||||
| Objet | Filtres | Bin | Temps Pose | Nombres Poses | Temps Total | |
| Nom | Gum 15 | Luminance | 1 x 1 | 150” | 0 | 0H00 |
| Constellation | Voiles | Rouge | 1 x 1 | 150” | 90 | 3H75 |
| Distance | 3000 AL | Vert | 1 x 1 | 150” | 93 | 3H88 |
| Détail prise de vue | Bleu | 1 x 1 | 150” | 89 | 3H71 | |
| Lieu | El Sauce Chili | S2 | 1 x 1 | 600” | 236 | 39H33 |
| Date acquisition | 14/02 à 25/03/2025 | Hα | 1 x 1 | 600” | 265 | 44H17 |
| Setup | O3 | 1 x 1 | 600” | 227 | 37H33 | |
| Instrument | Planewave CDK 14 | Totaux | 1000 | 132H67 | ||
| Diamètre | 356 mm | Bias | 1X1 | 99 | ||
| Focale | 2563 mm | Dark | 1X1 | 51 | ||
| Rapport F/D | 7,2 | Flat | 1X1 | 11 | ||
| Monture | Mathis Mi500/750 | Acquisition faite par | Cecil Navick AstroVision | |||
| Caméra acquisition | ZWO Asi 6200MM | Traitement fait par | Team ARO-Francis Bozon | |||
| Caméra de guidage | ZWO Asi 1600 mm | Logiciels utilisés | ||||
| Montage de guidage | DO Skymeca 3” | Acquisition | TheSkyX , Focusmax, Maxpilote | |||
| Echantillonage | 0,31 arcs | Traitement | Pixinsight, Photoshop | |||
COMMENTS ON THE PHOTO:
Gum 15 (also known as RCW 32) is a vast nebula in visible emission in the constellation Vela, around 3,000 light-years from Earth.
It is a region of ionized hydrogen gas, shaped by the radiation and winds of massive young stars.
At its center lies HD 74804, a hot O-type star that emits ultraviolet light, causing the surrounding gas to glow.
Spanning around 30 light-years, Gum 15 has a structure influenced by the interactions between stellar forces, forming bright ridges, dark dust bands and zones where new stars can develop.
Its appearance somewhat resembles that of the Trifid Nebula (M20), with its dark filaments running through bright gas. It is part of the Gum Nebula, a larger region of ionized gas and dust linked to ancient supernovae and star formation.
ASCENSION DROITE: 08h43’53s
DÉCLINAISON: -41°14′ 39”