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M2-9 (Butterfly Nebula)


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M2-9
Butterfly Nebula (蝶星雲)
Planetary Nebula (惑星状星雲)
Nb PN

別名 (Other names)
Twin Jet Nebula, Wings of a Butterfly, PNG 010.8+18.0, PK 010+18.2

距離 (Distance)
2,100光年 (2,100 light-years)

星座 (Constellation)
へびつかい座 (Oph) (Ophiuchus)

Butterfly Nebula (M2-9) is a planetary nebula located 2,100 light years from the Earth in the constellation Ophiuchus.

M2-9 (Butterfly Nebula) : Picture

M2-9: Wings of a Butterfly Nebula
M2-9: Wings of a Butterfly Nebula
(C) Hubble Legacy Archive, NASA, ESA - Processing: Judy Schmidt
Are stars better appreciated for their art after they die? Actually, stars usually create their most artistic displays as they die. In the case of low-mass stars like our Sun and M2-9 pictured above, the stars transform themselves from normal stars to white dwarfs by casting off their outer gaseous envelopes. The expended gas frequently forms an impressive display called a planetary nebula that fades gradually over thousand of years. M2-9, a butterfly planetary nebula 2,100 light-years away shown in representative colors, has wings that tell a strange but incomplete tale. In the center, two stars orbit inside a gaseous disk 10 times the orbit of Pluto. The expelled envelope of the dying star breaks out from the disk creating the bipolar appearance. Much remains unknown about the physical processes that cause planetary nebulae.

M2-9 (Butterfly Nebula)
M2-9
(Wings of a Butterfly Nebula)
(C) NASA

M2-9 (Butterfly Nebula) M2-9 (Butterfly Nebula) M2-9 (Butterfly Nebula)
M2-9
(C) NASA
M2-9
(C) NASA
M2-9
(C) NASA
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M2-9 (Butterfly Nebula) : Movie

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