| ACQUISITION | PARAMETRES ACQUISITION | |||||
| Objet | Filtres | Bin | Temps Pose | Nombres Poses | Temps Total | |
| Nom | Sh2-112 | Luminance | 1 x 1 | |||
| Constellation | Cygne | Rouge | 1 x 1 | 300 | 14 | 1H17 |
| Distance | 5670 AL | Vert | 1 x 1 | 300 | 14 | 1H17 |
| Détail prise de vue | Bleu | 1 x 1 | 300 | 16 | 1H33 | |
| Lieu | Sud Portugal | S2 | 1 x 1 | 1200” | 29 | 9H66 |
| Date acquisition | 27/05/ au 23/07/22 | Hα | 1 x 1 | 1200” | 81 | 27H |
| Setup | O3 | 1 x 1 | 1200” | 32 | 10.66 | |
| Instrument | Astrosib RC 400 | Totaux | 186 | 50.66H | ||
| Diamètre | 406 mm | Bias | 1X1 | 99 | ||
| Focale | 3200 mm | Dark | 1X1 | 51 | ||
| Rapport F/D | 8 | Flat | 1X1 | 11 | ||
| Monture | ASA DDM 85 | Acquisition faite par | Team ARO | |||
| Caméra acquisition | Moravian G3 16200 | Traitement fait par | Team ARO | |||
| Caméra de guidage | Atik 314L | Logiciels utilisés | ||||
| Montage de guidage | DO Astrosib | Acquisition | TheSkyX , Focusmax, Maxpilote | |||
| Echantillonage | 0,39 arcs | Traitement | Pixinsight, Photoshop | |||
COMMENTS ON THE PHOTO:
Sh2 -112 is a visible emission nebula in the constellation of Cygnus.
It is located in the northern part of the constellation, about 1.5° west of the bright star Deneb; the most suitable time for observing it in the night sky is between July and December and is greatly facilitated for observers in the northern hemisphere regions of the Earth.
It is a circular H II region of about 15′ in apparent size, with a dark band on the west side running north-south through it. The star responsible for its excitation is thought to be BD + 45 3216, a blue double star of spectral class O8V and apparent magnitude 9.18; estimates of the distance to this star give a value of 1740 parsecs (about 5670 light-years) which would place Sh2-112 in a particularly rich region of the Orion arm and physically very close to the large Cygnus X nebula system.
ASCENSION DROITE: 20h33’49s
DÉCLINAISON: 45°38′ 00