HD 231701

HD 231701
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Sagitta
Right ascension 19h 32m 04.161s[1]
Declination +16° 28 27.45[1]
Apparent magnitude (V) 8.97
Characteristics
Spectral type F8V
Astrometry
Proper motion (μ) RA: 63.85 ± 0.89[1] mas/yr
Dec.: 16.46 ± 0.85[1] mas/yr
Parallax (π)8.44 ± 1.05[1] mas
Distanceapprox. 390 ly
(approx. 120 pc)
Details
Mass1.15 ± 0.08[2] M
Surface gravity (log g)4.37 ± 0.03[2] cgs
Temperature6224 ± 27[2] K
Metallicity [Fe/H]0.04 ± 0.02[2] dex
Other designations
HIP 96078, BD +16 3883, SAO 104946[3]

HD 231701 is a yellow-white dwarf star approximately 390 light years away in the constellation of Sagitta. It is a 9th magnitude star, meaning the star is not visible to the naked eye, but powerful binoculars or a small telescope is needed to view the star. It is an F-type main-sequence star, a type of hydrogen-fusing star that is hotter, more massive, and brighter than our Sun.

Planetary system

In 2007, the N2K Consortium used the radial velocity technique to discover a Jupiter-like planet orbiting at 0.55 AU around the star.[4]

The HD 231701 planetary system[4]
Companion
(in order from star)
Mass Semimajor axis
(AU)
Orbital period
(days)
Eccentricity Inclination Radius
b >1.08 MJ 0.55 142 ± 2.8 0.19 ± 0.05

See also

References

External links

Coordinates: 19h 32m 04.1611s, +16° 28′ 27.444″


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