Artist’s impression of the rocky super-Earth HD 85512 b
Discovery
Discovered by
Pepe et al.
Discovery site
La Silla Observatory
Discovery date
August 17, 2011
Detection method
Radial velocity (HARPS)
Orbital characteristics
Semi-major axis
(0.26 ± 0.005)[1] AU
Eccentricity
(0.11 ± 0.1)[1]
Orbital period (sidereal)
54.43 (± 0.13)[1] d
Average orbital speed
94.913 ± 0.038
Star
HD 85512
Physical characteristics
Mean radius
≥1.3(?) R🜨
Mass
3.6 ± 0.5 ME
Surface gravity
~1.4
Temperature
298 K (25 °C; 77 °F)[2]
HD 85512 b is a currently-disputed exoplanet orbiting HD 85512, a K-type main-sequence star approximately 37 light-years from Earth in the constellation of Vela.[3][1]
Due to its mass of at least 3.6 times the mass of Earth, HD 85512 b is classified as a rocky Earth-size exoplanet (< 5M🜨) and is one of the smallest exoplanets discovered to be just outside the inner edge of the habitable zone.[1] HD 85512 b, along with Gliese 581 d, was once considered to be one of the best candidates for habitability in 2011.[4]
^ abcdeKaltenegger, L; Udry, S; Pepe, F (2011). "A Habitable Planet around HD 85512?". arXiv:1108.3561. Bibcode:2011arXiv1108.3561K. {{cite journal}}: Cite journal requires |journal= (help)
^Cite error: The named reference centauri was invoked but never defined (see the help page).
^Pepe, F; et al. (2011). "The HARPS search for Earth-like planets in the habitable zone: I – Very low-mass planets around HD20794, HD85512 and HD192310". Astronomy & Astrophysics. 534: A58. arXiv:1108.3447. Bibcode:2011A&A...534A..58P. doi:10.1051/0004-6361/201117055. S2CID 15088852.
^Cite error: The named reference maxisciences was invoked but never defined (see the help page).
HD85512b is a currently-disputed exoplanet orbiting HD85512, a K-type main-sequence star approximately 37 light-years from Earth in the constellation...
HD85512 is a solitary K-type main-sequence star 36.8 light-years (11.3 parsecs) away in the constellation Vela. It is about 1 billion years older than...
have moons large and stable enough to have oceans and probably life. HD85512b was discovered in August 2011. It is larger than Earth, but small enough...
include Gliese 581 d & g, Gliese 667 Ce & f, Gliese 682 b & c, Kapteyn b, and Gliese 832 c. HD85512b was initially estimated to be potentially habitable...
habitable, with Earth-like temperatures. Another possibly terrestrial planet, HD85512b, was discovered in 2011; it has at least 3.6 times the mass of Earth....
astronomers are divided about its existence. Discovered in August 2011, HD85512b was initially speculated to be habitable, but the new circumstellar habitable...
discoveries from HARPS HARPS spectrograph HARPS spectrograph detail Animation of HD 10180 with its seven planets Similar instruments: HARPS-N is a copy of this...
planets in the habitable zone. I. Very low-mass planets around HD 20794, HD85512, and HD 192310". Astronomy and Astrophysics. 534: A58. arXiv:1108.3447...
Universe Works. Astronomy portal Space portal Earth analog Gliese 667 Cc HD85512b Kepler-22b List of potentially habitable exoplanets Udry, Stéphane; Bonfils...
planet "b", discovered in 2010. A second planet "c" was found in this system in 2011 by the HARPS GTO program, along with the now-doubtful HD85512b and...
Maciejewski, G. (2011). "Substellar-Mass Companions to the K-Giants HD 240237, BD +48 738 and HD 96127". The Astrophysical Journal. 745 (1). 28. arXiv:1110.1641...
HD 76653 is a single star in the southern constellation Vela. It is faintly visible to the naked eye with an apparent visual magnitude of +5.71. Based...
Sanduleak, N.; Pesch, Peter (1990). "On a possible white-dwarf companion to HD 74389". Publications of the Astronomical Society of the Pacific. 102: 440...
91 and a stellar classification of F0 IV. The fainter secondary, component B, is also an F-type subgiant of magnitude +5.12 and class F3 IV. It has been...
Global Information