The Full Wiki

23 Librae: Wikis

Advertisements
  

Note: Many of our articles have direct quotes from sources you can cite, within the Wikipedia article! This article doesn't yet, but we're working on it! See more info or our list of citable articles.

Encyclopedia

From Wikipedia, the free encyclopedia

23 Librae
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Libra
Right ascension 15h 13m 28s
Declination −25° 18′ 33″
Apparent magnitude (V) 6.45
Distance 83.7 ly
(25.6 pc)
Spectral type G5V
Other designations
Gliese 579.4, HD 134987, HIP 74500, HR 5657
Database references
SIMBAD data
NStED data
Extrasolar Planets
Encyclopaedia
data

23 Librae (23 Lib) is a yellow dwarf star in the constellation Libra, and is about 83.7 light-years from the Sun. 23 Lib has a mass of 1.05 suns and a radius of 1.25 suns. [1][2]

Contents

Planetary system

In 1999 an exoplanet 23 Librae b was announced orbiting 23 Lib,[1] and in 2009 an additional planet was detected.[3]

The 23 Librae system[3]
Companion
(in order from star)
Mass Semimajor axis
(AU)
Orbital period
(days)
Eccentricity
b ≥ 1.59±0.02 MJ 0.81±0.02 258.19±0.07 0.233±0.002
c ≥ 0.82±0.03 MJ 5.8±0.5 5000±400 0.12±0.02

See also

References

  1. ^ a b Vogt et al. (2000). "Six New Planets from the Keck Precision Velocity Survey". The Astrophysical Journal 536 (2): 902–914. doi:10.1086/308981. http://www.iop.org/EJ/article/0004-637X/536/2/902/50799.html.  
  2. ^ Butler et al. (2006). "Catalog of Nearby Exoplanets". The Astrophysical Journal 646 (1): 505–522. doi:10.1086/504701. http://www.iop.org/EJ/article/0004-637X/646/1/505/64046.html.  
  3. ^ a b Jones, Hugh (2009). "A long-period planet orbiting a nearby Sun-like star". arΧiv:0912.2716v1 [astro-ph.EP].  

External links

Coordinates: Sky map 15h 13m 28s, −25° 18′ 33″

Advertisements

Advertisements






Got something to say? Make a comment.
Your name
Your email address
Message