HD 101930
HD 101930
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| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
Constellation | Centaurus |
Right ascension | 11h 43m 30.112s[1] |
Declination | –58° 00′ 24.79″[1] |
Apparent magnitude (V) | 8.21[2] |
| Characteristics | |
Spectral type | K2V+[2] |
| Astrometry | |
| Proper motion (μ) | RA: 15.80 ± 0.78[1] mas/yr Dec.: 347.90 ± 0.78[1] mas/yr |
| Parallax (π) | 34.24 ± 0.81[1] mas |
| Distance | 95 ± 2 ly (29.2 ± 0.7 pc) |
| Details | |
| Mass | 0.74 ± 0.05 M☉ |
| Temperature | 5,079[3] K |
| Metallicity | 0.17 ± 0.06 |
| Age | 5.39×109 years |
| Other designations | |
CD-57°4096, GJ 3683, HIP 57172, LTT 4350, NLTT 28356, SAO 239322 | |
| Database references | |
| SIMBAD | data |
| ARICNS | data |
| Extrasolar Planets Encyclopaedia | data |
HD 101930 is a dim 8th magnitude star located approximately 95 light years away[1] in the constellation of Centaurus. It is an orange dwarf (spectral class K2V), somewhat dimmer and cooler than our Sun.[2]
Contents
1 Planetary system
2 See also
3 References
4 External links
Planetary system[edit]
In 2005, the discovery of a planet orbiting the star was announced. This is another discovery using the radial velocity method with the HARPS spectrograph.[4]
| Companion (in order from star) | Mass | Semimajor axis (AU) | Orbital period (days) | Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
b | 0.30 MJ | 0.302 | 70.46 ± 0.18 | 0.11 ± 0.02 | — | — |
See also[edit]
- List of extrasolar planets
- HARPS spectrograph
References[edit]
^ abcdef van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357..mw-parser-output cite.citation{font-style:inherit}.mw-parser-output q{quotes:"""""""'""'"}.mw-parser-output code.cs1-code{color:inherit;background:inherit;border:inherit;padding:inherit}.mw-parser-output .cs1-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-limited a,.mw-parser-output .cs1-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration{color:#555}.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration span{border-bottom:1px dotted;cursor:help}.mw-parser-output .cs1-hidden-error{display:none;font-size:100%}.mw-parser-output .cs1-visible-error{font-size:100%}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-right{padding-right:0.2em}
Vizier catalog entry
^ abc "SIMBAD query result: NLTT 28356 -- High proper-motion Star". SIMBAD. Centre de Données astronomiques de Strasbourg. Retrieved 2009-05-22.
^ http://www.openexoplanetcatalogue.com/planet/HD%20101930%20b/
^ ab Lovis, C.; et al. (2005). "The HARPS search for southern extra-solar planets III. Three Saturn-mass planets around HD 93083, HD 101930 and HD 102117". Astronomy and Astrophysics. 437 (3): 1121–1126. arXiv:astro-ph/0503660. Bibcode:2005A&A...437.1121L. doi:10.1051/0004-6361:20052864.
External links[edit]
"HD 101930". Exoplanets. Retrieved 2009-05-22.
Coordinates: 
11h 43m 30.11s, −58° 00′ 24.793″
 | This main-sequence-star-related article is a stub. You can help Wikipedia by expanding it. |
Categories:
- K-type main-sequence stars
- Henry Draper Catalogue objects
- Hipparcos objects
- Centaurus (constellation)
- Planetary systems
- Gliese and GJ objects
- Durchmusterung objects
- Main-sequence-star stubs
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