HD 17092
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| Observation data Epoch 2000 |
|
|---|---|
| Constellation (pronunciation) |
Perseus |
| Right ascension | 02h 46m 22s |
| Declination | +49° 39′ 11″ |
| Apparent magnitude (V) | 7.73[1] |
| Distance | 355 ly (109 pc) |
| Spectral type | K0III[2] |
| Other designations | |
|
BD+49°767, SAO 38313
|
|
HD 17092 is an 8th magnitude star in the constellation of Perseus. It is an orange giant (spectral type K0III).
The star is visible only with binoculars or better equipment.
Contents |
[edit] HD 17092 b
| Extrasolar planet | List of extrasolar planets | |
|---|---|---|
| Orbital elements | ||
| Semimajor axis | (a) | 1.29±0.05[3] AU |
| Eccentricity | (e) | 0.166±0.052[3] |
| Orbital period | (P) | 359.9±2.4[3] d |
| Angular distance | (θ) | 11.835 mas |
| Longitude of periastron |
(ω) | 347.4±13.4[3]° |
| Time of periastron | (T0) | 2452969.5±12.3[3] JD |
| Semi-amplitude | (K) | 82.4±3.2 m/s |
| Physical characteristics | ||
| Mass | (m) | >4.6[3] MJ |
| Discovery information | ||
| Discovery date | 2007 | |
| Discoverer(s) | A. Niedzielski et al.[3] | |
| Detection method | Radial velocity | |
| Discovery status | Published | |
[edit] Discovery
In 2007 discovery of an extrasolar planet orbiting HD 17092 was announced by a team led by Andrzej Niedzielski of Polish Nicolaus Copernicus University and including astronomers from Penn State, the Spitzer Science Center, the Jet Propulsion Laboratory, and the University of Texas.[3] The discovery was made using the Hobby-Eberly Telescope.
[edit] Characteristics
The planet, designated as HD 17092 b, has a minimum mass of 4.6 Jupiter masses. The mean distance of the planet from the star is more than distance between Earth and Sun at 1.29 AU, and the eccentricity of the orbit is relatively low at 0.166.
[edit] External links
[edit] References
- ^ The Tycho-1 Catalog
- ^ Cannon, A.E.; Pickering, E.C. "Henry Draper (HD) catalog and HD extension".
- ^ a b c d e f g h Niedzielski, A.; Konacki, M.; Wolszczan, A.; Nowak, G.; Maciejewski, G.; Gelino, R.C.; Shao, M.; Shetrone, M.; Ramsey, L.W. (May 7, 2007). "A Planetary Mass Companion to the K0 Giant HD 17092". arXiv.org.
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