HD 104985: Difference between revisions
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{{Planetbox discovery |
{{Planetbox discovery |
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| discovery_date = June the 26th 2003 |
| discovery_date = June the 26th 2003 |
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| discoverers = Sato et al.<br> |
| discoverers = Sato et al.<br>[[Okayama Planet Search Program|Okayama Planet<br>Search Program]]<br>{{flag|Japan}} |
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| discovery_method = [[radial velocity]] |
| discovery_method = [[radial velocity]] |
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| discovery_site = [http://obswww.unige.ch/~naef/RECAN/announcement.html#2003 obswww.unige.ch] |
| discovery_site = [http://obswww.unige.ch/~naef/RECAN/announcement.html#2003 obswww.unige.ch] |
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Revision as of 01:12, 12 October 2008
File:HD 104985.jpg HD 104985 | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Camelopardalis |
| Right ascension | 12h 05m 14.74s |
| Declination | +76° 54′ 21.4″ |
| Apparent magnitude (V) | 5.79 |
| Characteristics | |
| Spectral type | G9 III |
| B−V color index | 1.029 |
| Astrometry | |
| Proper motion (μ) | RA: 147.22 mas/yr Dec.: -92.36 mas/yr |
| Parallax (π) | 9.8 ± 0.52 mas |
| Distance | 330 ± 20 ly (102 ± 5 pc) |
| Absolute magnitude (MV) | 0.75 |
| Details | |
| Mass | 1.5 M☉ |
| Radius | 10.87 ± 0.36 R☉ |
| Luminosity | 1.6092 L☉ |
| Surface gravity (log g) | 0,354567676 g cgs |
| Temperature | 6397 K |
| Metallicity | -35% |
| Age | 2.95 ± 0.65 G years |
| Equatorial [ g ] | 3,477 m/s2 |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Data sources: | |
| Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.) | |
HD 104985 is a helium-fusing yellow giant star in the constellation Camelopardalis. It is located 333 ly or 102 parsecs away from Earth.
HD 104985 b
Template:Planetbox begin Template:Planetbox orbit Template:Planetbox character Template:Planetbox discovery Template:Planetbox catalog |- style="background-color: #A0B0FF;" colspan="3" | Database references |- bgcolor="#FFFAFA" | Exoplanet || data |- bgcolor="#FFFAFA" | Simbad || data Template:Planetbox end
HD 104985 b is an extrasolar planet that takes 198 days to orbit at the distance of 0.78 AU. It is definitely a gas giant since it has mass 61/3 times Jupiter.
References
- Sato; et al. (2003). "A Planetary Companion to the G-Type Giant Star HD 104985". The Astrophysical Journal Letters. 597 (2): L157–L160.
{{cite journal}}: Explicit use of et al. in:|author=(help)
External links
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