AB Pictoris
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| Observation data Epoch J2000.0 |
|
|---|---|
| Constellation (pronunciation) |
Pictor |
| Right ascension | 06h 19m 12s |
| Declination | -58° 03' 15" |
| Apparent magnitude (V) | +9.16 |
| Distance | 149 ly (46 pc) |
| Spectral type | K2V |
| Other designations | |
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HD 44627, HIP 30034
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AB Pictoris is an orange dwarf star about 149 light-years away in the constellation Pictor.
As of 2005 one extrasolar planet or brown dwarf is known to orbit the star.
Contents |
[edit] AB Pictoris b
| Extrasolar planet | List of extrasolar planets | |
|---|---|---|
| Orbital elements | ||
| Observed separation | (d) | 275 AU |
| Physical characteristics | ||
| Mass | (m) | 13.5 ± 0.5 MJ |
| Temperature | (T) | 1600 – 2400 K |
| Discovery information | ||
| Discovery date | 2005 | |
| Discoverer(s) | Chauvin et al. | |
| Detection method | Imaging | |
| Discovery status | Published | |
AB Pictoris b is an extrasolar planet that was imaged by an ESO team in 2005. Very little is known about this object. Its most likely mass exceeds 13 Jupiter masses, so the object may be a low-mass brown dwarf. Its stellar classification is between L0 and L4.
[edit] See also
[edit] References
- R. Neuhäuser (2005) "Homogeneous comparison of directly detected planet candidates: GQ Lup, 2M1207, AB Pic". (Preprint)
- Chauvin et al. (2005). "A companion to AB Pic at the planet/brown dwarf boundary". Astronomy and Astrophysics 438: L29–L32. doi:.
- G. Chauvin, A.-M. Lagrange, B. Zuckerman, C. Dumas, D. Mouillet, I. Song, J.-L. Beuzit, P. Lowrance, M.S. Bessell (2005) "A companion to AB Pic at the planet/brown dwarf boundary". (Preprint)
[edit] External links
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