| ACQUISITION | PARAMETRES ACQUISITION | |||||
| Objet | Filtres | Bin | Temps Pose | Nombres Poses | Temps Total | |
| Nom | IC 443 | Luminance G75O15 | 1 x 1 | 0 | 0 | 0H |
| Constellation | Gemeaux | Rouge G75O15 | 1 x 1 | 120” | 71 | 2H36 |
| Distance | 4892 al | Vert G75O15 | 1 x 1 | 120” | 69 | 2H30 |
| Détail prise de vue | Bleu G75O15 | 1 x 1 | 120” | 67 | 2H23 | |
| Lieu | Portugal Sud | S2 G139 O30 | 1 x 1 | 180” | 440 | 22H |
| Date acquisition | 06/11/22 au 20/03/23 | Hα G139 O30 | 1 x 1 | 180” | 572 | 28.60.H |
| Setup | O3 G139 O30 | 1 x 1 | 180” | 440 | 22H | |
| Instrument | FSQ 106 | Totaux | 1659 | 79.49H | ||
| Diamètre | 106 mm | Bias | 1X1 | 99 | ||
| Focale | 530 mm | Dark | 1X1 | 51 | ||
| Rapport F/D | 5 | Flat | 1X1 | 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 PHOTO:
On the right of the picture, IC 443, or SNR G189.0+03.0, is a supernova remnant located in the constellation of Gemini, with a large angular size (45 minutes of arc, or one and a half times the apparent diameter of the Moon), and quite luminous both in X and in radio. Its distance is rather uncertain and is estimated to be between 2800 and 8000 light years, while its age varies between 3000 and 30 000 years.
The supernova afterglow IC443, with a golden colour indicates that the Ha and SII are strongly interacting, and OIII surrounds a large part of the object. OIII has a slightly faster expansion rate.
On the left of the picture, the emission nebula SH2-249, which is not in the same plane as Ic 443. It is at about 5200 AL There is also a very small nebula in the field.
ASCENSION DROITE:06h18’02.7s
DÉCLINAISON:22°39′ 36s