ObjetFiltresBinTemps PoseNombres PosesTemps Total
NomSh2_157Luminance1 x 1
ConstellationCassiopéeRouge1 x 1
Distance11050 ALVert1 x 1
Détail prise de vueBleu1 x 1
LieuCotes de Meuse
S21 x 13′1778h85
Date acquisitionDu 12/07/20 au 07/09/201 x 13′1849h20
SetupO31 X 13′1819h03
InstrumentTakahashi FSQ 106 EDTotaux27H08
Diamètre106 mmBias99
Focale530 mmDark31
Rapport F/D5Flat15
MontureSkywatcher AZ EQ6 Pierro AstroAcquisition faite parStéphane
Caméra acquisitionASI 1600 MM CooledTraitement fait parFrancis
Caméra de guidageStarlight-X Press SuperstarLogiciels utilisés
Montage de guidageDO SkymecaAcquisitionTheSkyX , Focusmax, Maxpilote
Echantillonage1,48 arc/sTraitementPixinsight, Photoshop


Sh2-157 is a low-emission nebula of considerable extension visible in the constellation Cassiopeia, located on the Perseus arm, one of the main spiral arms of our Milky Way…The northern part of the cloud has a ring shape, caused by the stellar wind action of several giant stars, while the southern sector appears excited by the light radiation of stars of spectral class O.

Inside is a cluster of very young stars, representing the latest generation of a star formation process.

To the right of the nebula is the open cluster Ngc 7510 located about 11400 light years from Earth.

On the top left is the nebula Ngc 7635. It is composed of Ionised Hydrogen, it is an H2 region.


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DÉCLINAISON:+58°06′ 0s