Epsilon Eridani c
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Extrasolar planet | List of extrasolar planets | |
---|---|---|
Parent star | ||
Star | Epsilon Eridani | |
Constellation | Eridanus | |
Right ascension | (α) | 03h 32m 55.8442s |
Declination | (δ) | −09° 27′ 29.744″ |
Distance | 10.5 ly (3.218 pc) | |
Spectral type | K2V | |
Orbital elements | ||
Semimajor axis | (a) | ~40 AU |
Eccentricity | (e) | ~0.3 |
Orbital period | (P) | ~280 y |
Angular distance | (θ) | ~12500 mas |
Time of periastron | (T0) | −869.74 JD |
Physical characteristics | ||
Mass | (m) | ~0.1 MJ |
Temperature | (T) | 33 K |
Discovery information | ||
Discovery date | October 25, 2002 | |
Discoverer(s) | Quillen, Thorndike | |
Detection method | Analysis of dust disk | |
Discovery site | United States | |
Discovery status | Doubtful |
Epsilon Eridani c is a hypothetical extrasolar planet orbiting in the Epsilon Eridani system. Proposed in 2002 based on analysis by Alice Quillen and Stephen Thorndike of the structure of the dust disk around the star. Clumping in the dust disk can be modelled by dust particles being trapped in resonances with a planet in an eccentric orbit. [1] As of 2007, the existence of this planet has not been confirmed.
[edit] References
- ^ Quillen & Thorndike. "Small Planet Spotted About Epsilon Eridani", Oct 25, 2002. Retrieved on 2007-06-20.