42 Draconis b

"Orbitar" redirects here. For the videogame in-game equipment, see Kid Icarus: Uprising.
42 Draconis b
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
Distance315 ± 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
SIMBADdata
Exoplanet Archivedata
Open Exoplanet Cataloguedata

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

Coordinates: 18h 25m 59.1381s, +65° 33′ 48.530″


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