42 Draconis b
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| Exoplanet | List of exoplanets | |
|---|---|---|
| Parent star | ||
| Star | 42 Draconis | |
| Constellation | Draco | |
| Right ascension | (α) | 18h 25m 59.14s[1] |
| Declination | (δ) | +65° 33′ 48.5″[1] |
| Apparent magnitude | (mV) | 4.833 |
| Distance | 315 ± 6[1] ly (97 ± 2[1] pc) |
|
| Spectral type | K1.5III | |
| Orbital elements | ||
| Semi-major axis | (a) | 1.19 ± 0.01 AU |
| Periastron | (q) | 0.74 AU |
| Apastron | (Q) | 1.64 AU |
| Eccentricity | (e) | 0.38 ± 0.06 |
| Orbital period | (P) | 479.1 ± 6.2 d (1.312 ± 0.017 y) |
| Argument of periastron |
(ω) | 218.7 ± 10.6° |
| Time of periastron | (T0) | 2452757.4 ± 3.7 JD |
| Physical characteristics | ||
| Minimum mass | (m sin i) | 3.88 ± 0.85 MJ |
| Discovery information | ||
| Discovery date | March 20, 2009 | |
| Discoverer(s) | Doellinger et al. | |
| Discovery method | radial velocity | |
| Discovery site | TLS | |
| Discovery status | Published | |
| Database references | ||
| Extrasolar Planets Encyclopaedia |
data | |
| SIMBAD | data | |
| Exoplanet Archive | data | |
| Open Exoplanet Catalogue | data | |
42 Draconis b (abbreviated 42 Dra b), also named Orbitar, is an extrasolar planet located approximately 315 light years from Earth in the constellation of Draco. It orbits the 5th magnitude K-type giant star 42 Draconis with a period of 479 days and 38% orbital eccentricity.[2] The planet was discovered using the radial velocity method on March 20, 2009.[2]
Following its discovery the planet was designated 42 Draconis b. In July 2014 the International Astronomical Union launched a process for giving proper names to certain exoplanets and their host stars.[3] The process involved public nomination and voting for the new names.[4] In December 2015, the IAU announced the winning name was Orbitar for this planet.[5] The winning name was submitted by the Brevard Astronomical Society of Brevard County, Florida, United States.[6] Orbitar is a contrived word paying homage to the space launch and orbital operations of NASA.[7]
See also
References
- ↑ 1.0 1.1 1.2 1.3 Lua error in package.lua at line 80: module 'strict' not found. Vizier catalog entry
- ↑ 2.0 2.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ NameExoWorlds: An IAU Worldwide Contest to Name Exoplanets and their Host Stars. IAU.org. 9 July 2014
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Final Results of NameExoWorlds Public Vote Released, International Astronomical Union, 15 December 2015.
- ↑ Website
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- Lua error in package.lua at line 80: module 'strict' not found.
Coordinates: 
18h 25m 59.1381s, +65° 33′ 48.530″
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