Ngc 2239 SHO

ObjetFiltresBinTemps PoseNombres PosesTemps Total
NomNgc 2239Luminance1 x 1
ConstellationLicorneRouge1 x 1
Distance4700 AL Vert1 x 1
Détail prise de vueBleu1 x 1
LieuMaison-Maugis 61
S21 x 115′235H75
Date acquisition18/01/17au 21/01/20171 x 115′256H25
SetupO31 X 115′235H75
InstrumentLunette Explorer Scientific
Triplet Apochromatique
Diamètre80 mmBias55
Focale480 mmDark19
Rapport F/D6Flat20
MontureEQ8 SkywatcherAcquisition faite parFrancis
Caméra acquisitionMorovian G2 4000Traitement fait parFrancis
Caméra de guidageAtik 314LLogiciels utilisés
Montage de guidageDO SkymecaAcquisitionTheSkyX , Focusmax, Maxpilote
Echantillonage3,17 arcsTraitementPixinsight, Photoshop


The Rosetta Nebula, NGC 2237, is not the only cosmic cloud that evokes a flower, but it is the most famous. On the edge of a large molecular cloud in the Unicorn constellation, some 5,000 light years from Earth, the petals of this cosmic rose are a veritable stellar nursery. This beautiful symmetrical shape is sculpted by winds and radiation from the central cluster of O-type stars. The stars in the group, listed as NGC 2444 , are only a few million years old, while the central cavity of the Rosetta Nebula is about 50 light years across. The nebula can be seen with a small telescope in the direction of the Unicorn constellation.

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DÉCLINAISON:+05°02′ 57s