bipolar nebulae

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• Bipolar nebula — A bipolar nebula is a distinctive nebular formation characterized by an axially symmetric bi lobed appearance. Many, but not all, planetary nebulae exhibit an observed bipolar structure. It may be that the two types of nebulae are directly… …   Wikipedia

• Bipolar outflow — A bipolar outflow represents two continuous flows of gas from the poles of a star. Bipolar outflows may be associated with protostars (young, forming stars), or with evolved post AGB stars (often in the form of Bipolar nebulae). In the case of a… …   Wikipedia

• Mz 3 — Ant Nebula The Ant Nebula Observation data (Epoch J2000) Right ascension 16h 17m 13.39 …   Wikipedia

• Planetary Nebula M2-9 — For other uses of Butterfly Nebula , see Butterfly Nebula (disambiguation). Minkowski 2 9 (M2 9) Observation data (Epoch J2000) …   Wikipedia

• Ring Nebula — For the Ring Nebula in Barnard s Galaxy, see Ring Nebula (NGC 6822). The Ring Nebula M57, The Ring Nebula. Credit: NASA/STScI/AURA …   Wikipedia

• Nebulosa planetaria — La Nebulosa Ojo de Gato. Imagen en falso color (visible y rayos X) tomada por el Telescopio espacial Hubble. Una nebulosa planetaria …   Wikipedia Español

• NGC 6302 — For other uses of Butterfly Nebula , see Butterfly Nebula (disambiguation). NGC 6302 Observation data (Epoch J2000) …   Wikipedia

• Planetary nebula — A planetary nebula is an emission nebula consisting of a glowing shell of gas and plasma formed by certain types of stars when they die. The name originated in the 18th century because of their similarity in appearance to giant planets when… …   Wikipedia

• Protoplanetary nebula — A protoplanetary nebula or preplanetary nebula Harv|Sahai|Sánchez Contreras|Morris|2005 (PPN) is an astronomical object which is at the short lived episode during a star s rapid stellar evolution between the late asymptotic giant branch (LAGB)Ref …   Wikipedia

• Little Dumbbell Nebula — Observation data (Epoch J2000.0) Right ascension 01h 42.4m …   Wikipedia

• Frosty Leo Nebula — Protoplanetary nebula caption= 2003 Hubble Advanced Camera for Surveys HRC name = Frosty Leo Nebula epoch = J2000 ra = RA|09|39|53.96Harv|SIMBAD|2007] dec = DEC|+11|58|52.4 dist ly = 3.0 kly (920 pc)Harv|Davis|Smith|Gledhill|Varricatt|2005]… …   Wikipedia