Size comparison of Jupiter with Upsilon Andromedae b
Discovery
Discovered by
Marcy et al.
Discovery site
California and Carnegie Planet Search United States
Discovery date
June 23, 1996
Detection method
Radial velocity
Orbital characteristics
Apastron
0.0601 AU
Periastron
0.0587 AU
Semi-major axis
0.0594±0.0003 AU[1]
Eccentricity
0.012±0.005[1]
Orbital period (sidereal)
4.617111±0.000014 d[1] (0.01264096 a; 110.8107 h)
Inclination
24±4[1]
Time of periastron
2,450,034.05±0.33[1]
Argument of periastron
44.11±25.56[1]
Semi-amplitude
70.51±0.37[1]
Star
Upsilon Andromedae A
Physical characteristics
Mean radius
~1.8[2]RJ
Mass
1.70+0.33 −0.24[1]MJ
Upsilon Andromedae b (υ Andromedae b, abbreviated Upsilon And b, υ And b), formally named Saffar/ˈsæfɑːr/, is an extrasolar planet approximately 44 light-years away from the Sun in the constellation of Andromeda. The planet orbits its host star, the F-type main-sequence star Upsilon Andromedae A, approximately every five days. Discovered in June 1996 by Geoffrey Marcy and R. Paul Butler, it was one of the first hot Jupiters to be discovered. It is also one of the first non-resolved planets to be detected directly. Upsilon Andromedae b is the innermost-known planet in its planetary system.
In July 2014 the International Astronomical Union launched NameExoWorlds, 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 Saffar for this planet.[5] The winning name was submitted by the Vega Astronomy Club of Morocco and honours the 11th-century astronomer Ibn al-Saffar of Muslim Spain.[6]
^ abcdefghCite error: The named reference Pizkorz2017 was invoked but never defined (see the help page).
^Cite error: The named reference Deitrick2014 was invoked but never defined (see the help page).
^NameExoWorlds: An IAU Worldwide Contest to Name Exoplanets and their Host Stars. IAU.org. 9 July 2014
^"NameExoWorlds The Process". Archived from the original on 2015-08-15. Retrieved 2015-09-05.
^Final Results of NameExoWorlds Public Vote Released, International Astronomical Union, 15 December 2015.
^"NameExoWorlds The Approved Names". Archived from the original on 2018-02-01. Retrieved 2016-01-17.
and 23 Related for: Upsilon Andromedae b information
UpsilonAndromedaeb (υ Andromedaeb, abbreviated Upsilon And b, υ And b), formally named Saffar /ˈsæfɑːr/, is an extrasolar planet approximately 44 light-years...
UpsilonAndromedae (υ Andromedae, abbreviated Upsilon And, υ And) is a binary star located 44 light-years from Earth in the constellation of Andromeda...
UpsilonAndromedae d (υ Andromedae d, abbreviated Upsilon And d, υ And d), formally named Majriti /mædʒˈraɪti/, is a super-Jupiter exoplanet orbiting...
UpsilonAndromedae c (υ Andromedae c, abbreviated Upsilon And c, υ And c), formally named Samh /ˈsɑːm/ (a homophone with the star Salm), is an extrasolar...
Vapor in the Thermal Spectrum of the Non-transiting Hot Jupiter UpsilonAndromedaeb". The Astronomical Journal. 154 (2): 78. arXiv:1707.01534. Bibcode:2017AJ...
its star, always presenting the same face to it. The planet (with UpsilonAndromedaeb) was deemed a candidate for aperture polarimetry by Planetpol. It...
Benedict, G. Fritz (2014-12-18). "The 3-dimensional architecture of the UpsilonAndromedae planetary system". The Astrophysical Journal. 798 (1): 46. arXiv:1411...
"Reinvestigation of the Multiepoch Direct Detections of HD 88133 b and UpsilonAndromedaeb". The Astronomical Journal. 162 (6). 269. arXiv:2109.13275. Bibcode:2021AJ...
"Reinvestigation of the Multiepoch Direct Detections of HD 88133 b and UpsilonAndromedaeb". The Astronomical Journal. 162 (6). 269. arXiv:2109.13275. Bibcode:2021AJ...
planet is in the List of exoplanets discovered between 2000–2009. HD 114762 b was once considered as the first discovered exoplanet. Found in 1989 by a...
together with the planet of Tau Boötis and the innermost planet of UpsilonAndromedae. Even when this inner planet, with a mass at least 78% times that...
1088/1674-4527/accb7e. Greenhill; et al. (2002). "epsilon Eridani, upsilonAndromedae, 51 Pegasi, HD 209458, HD 196050". IAU Circ. 7985: 1. Bibcode:2002IAUC...
Bernkopf, Jan (1998). "F- and G-type stars with planetary companions: UpsilonAndromedae, rho (1) Cancri, tau Bootis, 16 Cygni and rho Coronae Borealis". Astronomy...
been discovered around clump giants). 6 Lyncis 81 Ceti HD 167042 UpsilonAndromedae Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia...
that other solar systems may be out there waiting to be discovered.” UpsilonAndromedae e "Jupiter Twin Discovered Around Solar Twin". Retrieved 16 July 2015...
announced, together with the planet of Tau Boötis and the inner planet of UpsilonAndromedae. The planet was discovered by measuring the star's radial velocity...
first main-sequence star found to have an exoplanet (designated 51 Pegasi b, officially named Dimidium) orbiting it. The star's apparent magnitude is...
Letters 551, L31-35 astro-ph/0010549 (2001). Stability and Chaos in the UpsilonAndromedae Planetary System, (G. Laughlin and F. C. Adams), The Astrophysical...
exoplanets and also the first planetary system around a Sun-like star, UpsilonAndromedae. Marcy was a co-investigator on the NASA Kepler mission. His collaborators...
oxide bands become present by late M. Spectral standards: M0IIIa – Beta Andromedae M2III – Chi Pegasi M1-M2Ia-Iab – Betelgeuse M2Ia – Mu Cephei ("Herschel's...
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