ObjetFiltresBinTemps PoseNombres PosesTemps Total
NomM63Luminance1 x 15′857H08
ConstellationChien de chasseRouge1 x 15′282h33
Distance26,1 Mal Vert1 x 15′272h25
Détail prise de vueBleu1 x 15′282h33
LieuMaison-Maugis 61
Appremont-la-Forêt 55
Date acquisition11/04/20 au 24/04/2020
InstrumentNewton Skyvision Mtn 250Totaux16814h00
Diamètre250 mmBias99
Focale900 mmDark19
Rapport F/D3,6Flat11
MontureEQ8 SkywatcherAcquisition faite parStephane-Francis
Caméra acquisitionMorovian G2 4000Traitement fait parFrancis
Caméra de guidageLodestar-Atik 314LLogiciels utilisés
Montage de guidageDO SkymecaAcquisitionTheSkyX , Focusmax, Maxpilote
Echantillonage1,7 arcsTraitementPixinsight, Photoshop


 A brilliant spiral galaxy in the boreal sky, Messier 63 is some 25 million light years away from us, in the constellation of the Hounds of the Hunt.

Also known by catalogue number NGC 5055, this majestic universe is nearly 100,000 light-years in diameter, about the size of our own galaxy, the Milky Way. Known colloquially as the Sunflower Galaxy, M 63, has a brilliant yellow core surrounded by blue spiral arms, themselves striped with veins of dust – areas of star formation.

This long exposure time also reveals remarkable loops and extensions of its spiral arms. A dominant member of a known galactic group, the subtle extensions of M 63 could be the result of gravitational interactions with nearby galaxies. M63 also radiates across the entire electromagnetic spectrum, and is thought to have experienced intense outbreaks of star formation.


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DECLINAISON:+42°01′ 46s