| ACQUISITION | PARAMETRES ACQUISITION | |||||
| Objet | Filtres | Bin | Temps Pose | Nombres Poses | Temps Total | |
| Nom | M 81 M 82 | Luminance | 1 x 1 | 120” | 269 | 8H97 |
| Constellation | Grande Ourse | Rouge G75 O15 | 1 x 1 | 120” | 97 | 3H24 |
| Distance | 12 Millions AL | Vert G75 O15 | 1 x 1 | 120” | 118 | 3H93 |
| Détail prise de vue | Bleu G75 O15 | 1 x 1 | 120” | 100 | 3H67 | |
| Lieu | Ameiria Portugal | S2 | 1 x 1 | |||
| Date acquisition | 07/03/2021 au 12/05/2021 | Hα G200 O60 | 1 x 1 | 180” | 134 | 6H70 |
| Setup | O3 | 1 X 1 | ||||
| Instrument | FSQ 106 | Totaux | 718 | 25H74 | ||
| Diamètre | 106 mm | Bias | 1 X 1 | 99 | ||
| Focale | 530 mm | Dark | 1 X 1 | 51 | ||
| Rapport F/D | 5 | Flat | 1 X 1 | 11 | ||
| Monture | EQ6 Pro Skywatcher | Acquisition faite par | Team ARO | |||
| Caméra acquisition | ZWO Asi 1600 MM | Traitement fait par | Team ARO | |||
| Caméra de guidage | Lodestar X2 | Logiciels utilisés | ||||
| Montage de guidage | DO Starlight X press | Acquisition | TheSkyX , Focusmax, Maxpilote | |||
| Echantillonage | 1.48 arcs | Traitement | Pixinsight, Photoshop | |||
COMMENTS ON THE OBJECT :
M81 (NGC 3031) is a spiral galaxy located in Ursa Major constellation about 12.0 million light years from the Milky Way. Its diameter is relatively modest at only 87,000 light years.
The arms of the Galaxy contain young, very hot (blue) stars formed over the past million years. M81 also has beautiful star-forming regions in its spiral arms. These regions correspond to the ‘red’ zones. The central bulge contains the oldest stars.
This image is a crop of our M81-M82 and IFN image
ASCENSION DROITE:09h55’33,2s
DÉCLINAISON:+69°03′ 55s