HD 231701
From Infogalactic: the planetary knowledge core
| 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 |
| Distance | approx. 390 ly (approx. 120 pc) |
| Details | |
| Mass | 1.15 ± 0.08[2] M☉ |
| Surface gravity (log g) | 4.37 ± 0.03[2] cgs |
| Temperature | 6224 ± 27[2] K |
| Metallicity [Fe/H] | 0.04 ± 0.02[2] dex |
| Other designations | |
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]
| 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
- ↑ 1.0 1.1 1.2 1.3 1.4 Lua error in package.lua at line 80: module 'strict' not found. Vizier catalog entry
- ↑ 2.0 2.1 2.2 2.3 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 4.0 4.1 Lua error in package.lua at line 80: module 'strict' not found.
External links
- Lua error in package.lua at line 80: module 'strict' not found.
Coordinates: 
19h 32m 04.1611s, +16° 28′ 27.444″
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