Gliese 682

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Gliese 682
Observation data
Epoch J2000      Equinox
Constellation Scorpius
Right ascension  17h 37m 03.6613s[1]
Declination –44° 19′ 09.18″[1]
Apparent magnitude (V) 10.96[1]
Characteristics
Spectral type M3.5[1]
Apparent magnitude (B) ~12.61[1]
Apparent magnitude (V) ~10.96[1]
Apparent magnitude (J) 6.544 ±0.023[1]
Apparent magnitude (H) 5.917 ±0.038[1]
Apparent magnitude (K) 5.606 ±0.020[1]
Astrometry
Radial velocity (Rv)-60.0[1] km/s
Proper motion (μ) RA: -710.29 ± 2.85[1] mas/yr
Dec.: -938.17 ± 2.07[1] mas/yr
Parallax (π)203.49 ± 1.30[2] mas
Distance16.0 ± 0.1 ly
(4.91 ± 0.03 pc)
Absolute magnitude (MV)12.45
Other designations
CD-44 11909, GJ 682, LHS 451, LFT 1358, HIP 86214, PLX 3992.
Database references
SIMBADstar
planet b
planet c
Exoplanet Archivedata
ARICNSdata
Extrasolar Planets
Encyclopaedia
data

Gliese 682 or GJ 682 is a red dwarf. It is listed as the 49th-nearest known star to the Sun, being about 16 light years away from the Earth. Even though it is close by, it is dim with a magnitude of 10.95 and thus requires a telescope to be seen. It is located in the constellation of Scorpius, near the bright star Theta Scorpii.[1] It has two candidate planets, one of which is in the habitable zone.[3][4]

Planetary system[edit]

The Gliese 682 planetary system[5]
Companion
(in order from star)
Mass Semimajor axis
(AU)
Orbital period
(days)
Eccentricity Inclination Radius
b >4.4 M 0.08 17.48 0.08
c >8.7 M 0.18 57.32 0.10

See also[edit]

References[edit]

  1. ^ a b c d e f g h i j k l m "LHS 451 -- High proper-motion Star". Centre de Données astronomiques de Strasbourg. Retrieved 2009-12-14.
  2. ^ Henry, Todd J.; Jao, Wei-Chun; Winters, Jennifer G.; Dieterich, Sergio B.; Finch, Charlie T.; Ianna, Philip A.; Riedel, Adric R.; Silverstein, Michele L.; Subasavage, John P.; Vrijmoet, Eliot Halley (2018). "The Solar Neighborhood XLIV: RECONS Discoveries within 10 parsecs". The Astronomical Journal. 155 (6): 265. arXiv:1804.07377. Bibcode:2018AJ....155..265H. doi:10.3847/1538-3881/aac262.
  3. ^ http://phl.upr.edu/projects/habitable-exoplanets-catalog/data
  4. ^ http://www.hpcf.upr.edu/~abel/phl/tuomi/hec_orbit_GJ_682_b.png
  5. ^ Tuomi, M.; et al. (2014). "Bayesian search for low-mass planets around nearby M dwarfs - estimates for occurrence rate based on global detectability statistics". Monthly Notices of the Royal Astronomical Society. 441 (2): 1545. arXiv:1403.0430. Bibcode:2014MNRAS.441.1545T. doi:10.1093/mnras/stu358.