Draft:Kohoutek 4-55
Submission declined on 25 May 2025 by Tarlby (talk).
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| Submission declined on 7 April 2025 by Sophisticatedevening (talk). This draft's references do not show that the subject qualifies for a Wikipedia article. In summary, the draft needs multiple published sources that are: Declined by Sophisticatedevening 51 days ago.
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Comment: The subject must be proven to be notable before it can be published. Tarlby (t) (c) 20:31, 25 May 2025 (UTC)
| Nebula | |
|---|---|
| Observation data: J2000 epoch | |
| Right ascension | 20h 45m 10.60s[1] |
| Declination | +44° 39′ 10.87″[1] |
| Distance | 4500 ly |
| Constellation | Cygnus constellation |
Kohouket 4-55 (also known as K 4-55) is a planetary nebula located in the Cygnus constellation at a distance of 4500 light years from Earth. It was discovered by Lubos Kohouket, a Czech astronomer. It is being formed by a red giant star at the end of its life ejecting gas into space.[2][3]
Structure
[edit]The nebula is multi-shelled which is rare for a nebula. The hot bright inner ring is surrounded by a bipolar structure and the entire system is surrounded by a faint red halo.[3]
References
[edit]- ^ a b Cite error: The named reference
Gaia_EDR3was invoked but never defined (see the help page). - ^ information@eso.org. "Planetary nebula K 4-55". www.esahubble.org. Retrieved 2025-04-07.
- ^ a b "Pretty as a Picture - NASA". Retrieved 2025-04-07.
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