Beta Circini b

β Circini b
Exoplanet List of exoplanets
Location of parent star β Circini (Circled, Marked simply as β) in the constellation of Circinus.
Parent star
Star β Circini
Right ascension (α) 15h 17m 30.8494s[1]
Declination (δ) −58° 48′ 04.349″[1]
Distance97 ± 2 ly
(29.6 ± 0.7 pc)
Spectral type A3Va
Mass (m) 1.96 M☉
Radius (r) 1.3 R☉
Temperature (T) 8,892[2] K
Orbital elements
Semi-major axis(a) 6656.0[3] AU
Eccentricity (e) N/A[3]
Orbital period(P) N/A[3] d
Physical characteristics
Mass(m)56.0 (± 7.0)[3] MJ
Discovery information
Discovery date October 30, 2015
Discoverer(s) Smith, L. C. et al.
Discovery method Direct imaging
Discovery status Published

Beta Circini b (also known as Beta Cir b, β Circini b, β Cir b) is a Brown dwarf orbiting the A-type star β Circini, in the constellation of Circinus.[3][4] It has a surface temperature of 2084.0 K. Its mass was estimated using the Spectrum method which concluded that the object has a mass of 56.0±7.0 MJ.[3]

References

  1. 1 2 * bet Cir -- Star, database entry, SIMBAD. Accessed on line September 5, 2008.
  2. ↑ Song, Inseok; et al. (February 2001), "Ages of A-Type Vega-like Stars from uvbyβ Photometry", The Astrophysical Journal, 546 (1): 352–357, arXiv:astro-ph/0010102Freely accessible, Bibcode:2001ApJ...546..352S, doi:10.1086/318269
  3. 1 2 3 4 5 6 "β Circini b". Retrieved October 30, 2015.
  4. ↑ Discovery of a brown dwarf companion to the A3V star β Circini. Retrieved November 9, 2015.

Coordinates: 15h 17m 30.8494s, −58° 48′ 04.349″

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