ObjetFiltresBinTemps PoseNombres PosesTemps Total
NomM 45Luminance1 x 15′221H83
ConstellationTaureauRouge1 x 15′151h25
Distance444 AL Vert1 x 15′151h25
Détail prise de vueBleu1 x 15′151h25
LieuMaison-Maugis 61
Date acquisition18/12/17 au 12/02/20181 x 1
InstrumentNewton Skyvision Mtn 250Totaux675h58
Diamètre250 mmBias99
Focale900 mmDark19
Rapport F/D3,6Flat11
MontureEQ8 SkywatcherAcquisition faite parFrancis
Caméra acquisitionMorovian G2 4000Traitement fait parFrancis
Caméra de guidageAtik 314LLogiciels utilisés
Montage de guidageDO SkymecaAcquisitionTheSkyX , Focusmax, Maxpilote
Echantillonage1,7 arcsTraitementPixinsight, Photoshop


The Pleiades is the name of Greek origin given to an open cluster that can be easily seen in the night sky. It is one of the most beautiful celestial objects we can see from Earth.

An open cluster means that it is a group of young stars. Astronomers have counted more than 1,000 members in the Pleiades, with a mass of about 800 suns. It is one of the many nurseries of the Milky Way and one of the closest to our Solar System. From our planet, we see them shining in the constellation of Taurus.

The Pleiades, also known as Messier 45 (M 45), extend some 15 light years to approximately 430 light years. They were born, as a whole, about 100 million years ago. Over the next 250 million years, these baby stars will spread throughout the Galaxy. Its brightest stars are hot blue class B giants. Stars smaller and paler than our Sun also shine there: red dwarfs as well as brown dwarfs. Not forgetting that many of the stars are double stars. And, more astonishingly, white dwarfs have been observed there.

As we can see on the photograph and also, when the conditions of observation are good (in the absence of the Moon and light pollution), the Pleiades are covered with gas. In particular the star Merop. The cluster is bathed in a nebula by reflection.


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DÉCLINAISON:+24°22′ 00s