Lemon Slice Nebula
IC 3568 is a planetary nebula that is 1.3 kiloparsecs (4500 ly) away from Earth in the constellation of Camelopardalis (just 7.5 degrees from Polaris). It is a relatively young nebula and has a core diameter of only about 0.4 light years. It was dubbed the Lemon Slice Nebula by Jim Kaler, due to its appearance in one false-colour image from the Hubble Space Telescope.[1][2] The Lemon slice nebula is one of the most simple nebulae known, with an almost perfectly spherical morphology. The core of the nebula does not have a distinctly visible structure in formation and is mostly composed of ionized helium.[3] A faint halo of interstellar dust surrounds the nebula.
| Emission nebula | |
|---|---|
| Planetary nebula | |
 Image of IC 3568 based on HST data | |
| Observation data: J2000 epoch | |
| Right ascension | 12h 33m 06s |
| Declination | +82° 34′ 00″ |
| Distance | Roughly 4.5⋅103 ly |
| Apparent magnitude (V) | 12.3 |
| Constellation | Camelopardalis |
| Physical characteristics | |
| Radius | Core: 0.2 ly |
| Designations | IC 3568 |
False colour image of the bright central region of IC 3568. This is the image that gave the nebula its common name.
References
- IC 3568
- Portal to the Universe.org
- "starrycritters.com". Archived from the original on 2015-04-02. Retrieved 2013-07-29.
External links
Media related to IC 3568 at Wikimedia Commons
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