Ring nebula (Bernard DELATTRE)

Celestial hemisphere: Northern · Constellation: Lyra (Lyr) · Contains: IC 1296 · M 57 · NGC 6720 · PK063+13.1 · Ring Nebula

Ring nebula

m57 L=O3 red=(Ha,S2,R) green=(O3,Ha,G) blue=(O3, B)

La nébuleuse planétaire est située à 2300 années-lumière dans la constellation nord de la Lyre. La région lumineuse de la nébuleuse a une longueur apparente de 1,5 minute d'arc, ce qui correspond à une durée réelle d'environ 1 année-lumière.

La structure de la nébuleuse est plus compliquée qu'il n'y paraît. Semblable à la nébuleuse Helix beaucoup plus grande (NGC 7293), cette nébuleuse est une nébuleuse bipolaire et notre vue est alignée à environ 30 degrés de l'axe bipolaire. Autour du centre de la nébuleuse, un tore de poussière dense crée la région blanche brillante en contraignant l'écoulement bipolaire dans un anneau dense, que nous voyons sous un léger angle qui présente une forme ovale apparente au lieu d'un cercle. En plus de contraindre et de concentrer le gaz, le tore dirige le flux sortant dans deux grands lobes d'extrémité opposés, qui sont les régions externes pâles que nous voyons sur l'image.

Texte de Gary IMM

Original
B
Final
C

Short exposures DSO
ZWO ASI1600MM/QHY163M
N.I.N.A. Users
Low-Cost Astrophotography
Narrowband imaging
Fast Newtonians
Planetary Nebulae

0a.Most Recent
2b.NarrowBand S2-Ha-OIII
Ctlg IC (complémentaire NGC)
Nébuleuses planétaires (Ctlg PK, Abell...)

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The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

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Status	Advanced success
Started	...
PixInsight job	F4H9FSFNQDX0D467G7CTJJI9G9SR8U5B
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	18h53m35s.269
RA (top/left)	18h52m24s.728
RA (top/right)	18h55m01s.527
RA (bottom/right)	18h54m46s.178
RA (bottom/left)	18h52m08s.623

Dec (center)	+33°01′46″.48
Dec (top/left)	+32°47′12″.27
Dec (top/right)	+32°51′35″.27
Dec (bottom/right)	+33°16′18″.11
Dec (bottom/left)	+33°11′54″.18

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