HD 96063
HD 96063 (proper name Dingolay) is a 8th-magnitude yellow giant star located about 460 light-years away in the constellation of Leo.[1][2] It is orbited by one confirmed exoplanet, HD 96063 b (proper name Ramajay), a gas giant slightly more massive than Jupiter.[3]
Stellar characteristics[edit]
HD 96063 is an evolved yellow/orange star with a spectral type of K0, a radius of 4.75 R☉, and a mass of 1.37 M☉. It has an effective temperature of 5,020 K and an age of 9 billion years. The star is about 12.7 times brighter than the Sun, which, combined with a distance of 459 light-years, puts its apparent magnitude at 8.21, too faint to be seen from Earth by the naked eye.[1][4]
Planetary system[edit]
In 2011, radial-velocity observations made at the W. M. Keck Observatory revealed the existence of an exoplanet around HD 96063. The planet, HD 96063 b, is thought to be a gas giant at least 1.265 times the mass of Jupiter, which orbits its host star at a distance of 1.11 AU with a period of almost exactly one year. Its orbit is moderately eccentric, with an eccentricity comparable to that of Mercury (0.2056).[5]
Nomenclature[edit]
In 2019, the Republic of Trinidad and Tobago was assigned to giving the HD 96063 system a proper name as part of the IAU100 NameExoWorlds Project, planned to celebrate the hundredth anniversary of the International Astronomical Union (IAU), which grants the right to name an exoplanetary system to every state and territory in the world.[1] Names were submitted and selected within Trinidad and Tobago, which were then presented to the IAU to be officially recognized.[6] On 17 December 2019, the IAU announced that HD 96063 and its planet, b, were named Dingolay and Ramajay, respectively.[7]
The two names are both derived from terms related to the Trinidad and Tobago Carnival. Dingolay is a dance form that represents the culture and language of Trinidad and Tobago's ancestors via intricate movements. Ramajay is a steelpan style of singing and music that celebrates Trinidad and Tobago's forefathers' culture and language.[7]
References[edit]
- ↑ 1.0 1.1 1.2 "List of stars and planets". Name ExoWorlds. IAU. Retrieved 2019-08-27.
- ↑ "HD 96063 -- Star". SIMBAD. CDS. Retrieved 2019-08-27.
- ↑ Johnson, John Asher; Clanton, Christian; Howard, Andrew W.; Bowler, Brendan P.; Henry, Gregory W.; Marcy, Geoffrey W.; Crepp, Justin R.; Endl, Michael; Cochran, William D.; MacQueen, Phillip J.; Wright, Jason T.; Isaacson, Howard (2011-12-01). "Retired a Stars and Their Companions. Vii. 18 New Jovian Planets". The Astrophysical Journal Supplement Series. 197 (2): 26. arXiv:1108.4205. Bibcode:2011ApJS..197...26J. doi:10.1088/0067-0049/197/2/26. ISSN 0067-0049.
- ↑ ESA (1997), "The HIPPARCOS and TYCHO catalogues. Astrometric and photometric star catalogues derived from the ESA HIPPARCOS Space Astrometry Mission", Esa Special Publication, ESA SP Series, Noordwijk, Netherlands: ESA Publications Division, 1200, Bibcode:1997ESASP1200.....E, ISBN 9290923997
- ↑ Luhn, Jacob K.; Bastien, Fabienne A.; Wright, Jason T.; Johnson, John A.; Howard, Andrew W.; Isaacson, Howard (2019-04-01). "Retired A Stars and Their Companions. VIII. 15 New Planetary Signals around Subgiants and Transit Parameters for California Planet Search Planets with Subgiant Hosts". The Astronomical Journal. 157 (4): 149. arXiv:1811.03043. Bibcode:2019AJ....157..149L. doi:10.3847/1538-3881/aaf5d0. ISSN 0004-6256.
- ↑ "Methodology". Name ExoWorlds. IAU. Retrieved 2019-08-27.
- ↑ 7.0 7.1 "Approved names". NameExoWorlds. IAU. Retrieved 2019-12-24.
See also[edit]
External links[edit]
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