NGC 2264-la nébuleuse du cône HOO (Matthieu TEQUI)

Celestial hemisphere: Northern · Constellation: Monoceros (Mon) · Contains: 15 S Mon · B39 · Christmas Tree Cluster · LBN 899 · LBN 902 · LBN 911 · LBN 912 · LDN 1609 · LDN 1610 · LDN 1613 · NGC 2259 · NGC 2264 · Sh2-273 · The star 15Mon

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NGC 2264-la nébuleuse du cône HOO

Powered byPixInsight

NGC 2264-la nébuleuse du cône HOO

NGC 2264 version HOO

Ha:60x300sec

OIII:50x300sec

SII:40x300sec

Voici Ngc 2264, qui n’est pas une nébuleuse mais bien un amas d’étoiles dans la constellation de la licorne.

Cet amas est entouré d’un vaste complexe nébuleux où on peut notamment retrouver la nébuleuse du cône et la nébuleuse de la fourrure de renard.

Une particularité de ce complexe est que l’on y trouve 3 sortes de nébuleuses:

Des nébuleuses en réflexions, en émissions et obscures.

La taille des ces différentes nébuleuses avoisine les 3 degrés!

Concernant la partie technique, il m’a fallu quasi 13h pour l’imager par pose de 300sec et au vu du temps de ces derniers jours, j’ai bien cru ne pas la finir cette année.

1ere lumière de l’excellente caméra Zwo asi 2600MMpro. Je la trouve vraiment excellente en terme de sensibilité et bruit! Le contraste et le lissage est sans doute améliorer par son ADC 16bits natif. La taille du capteur est celle d’un aps-c ce qui se prête bien pour ce genre de nébuleuse très entendues!

Je l’ai shootée avec l’askar FRA400 (sans le réducteur) car je voulais conserver les détails sympas sur ces nébuleuses donc échantillonnage plus faible.

Traitement principalement avec pixinsight et Photoshop pour la colorimétrie.

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Status	Advanced success
Started	...
Astrometry.net job	4310987
PixInsight job	EPLYA1IRMTYFH8MRNPAEY252CZ3W54F9
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	06h41m09s.40
RA (top/left)	06h47m52s.10
RA (top/right)	06h35m21s.38
RA (bottom/right)	06h34m24s.40
RA (bottom/left)	06h46m59s.99

Dec (center)	+10°04′08″.8
Dec (top/left)	+09°11′21″.1
Dec (top/right)	+08°51′24″.3
Dec (bottom/right)	+10°56′27″.7
Dec (bottom/left)	+11°16′36″.3

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NGC 2264-la nébuleuse du cône HOO

NGC 2264-la nébuleuse du cône HOO

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