| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Crater |
| Right ascension | 11h 20m 51.76855s[1] |
| Declination | −23° 13′ 02.4295″[1] |
| Apparent magnitude (V) | +8.00[2] |
| Characteristics | |
| Spectral type | G3/5V[3] |
| B−V color index | +0.658[3] |
| Astrometry | |
| Radial velocity (Rv) | 4.25±0.12[1] km/s |
| Proper motion (μ) | RA: −199.735±0.022 mas/yr[1] Dec.: −177.620±0.017 mas/yr[1] |
| Parallax (π) | 23.7206 ± 0.0216 mas[1] |
| Distance | 137.5 ± 0.1 ly (42.16 ± 0.04 pc) |
| Absolute magnitude (MV) | +4.91[2] |
| Details | |
| Mass | 0.97±0.02[4] M☉ |
| Radius | 1.01±0.02[3] R☉ |
| Luminosity (bolometric) | 0.968±0.019[4] L☉ |
| Luminosity (visual, LV) | 0.98±0.003[3] L☉ |
| Surface gravity (log g) | 4.38±0.08[2] cgs |
| Temperature | 5,759±35[2] K |
| Metallicity [Fe/H] | 0.05±0.04[3] dex |
| Rotation | 27±4.0 days[2] |
| Rotational velocity (v sin i) | 1.19[2] km/s |
| Age | 4.44+0.68 −0.58[4] Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
HD 98649 is a star with an orbiting exoplanet in the southern Crater constellation. Based on parallax measurements, it is located at a distance of 137.5 light years from the Sun. The system is drifting further away with a heliocentric radial velocity of 4.3 km/s.[1] With an apparent visual magnitude of +8.00,[2] it is too faint to be viewed with the naked eye. The system has a relatively high proper motion, traversing the celestial sphere at an angular rate of 0.24″·yr−1.[6]
The spectrum of HD 98649 presents as an ordinary G-type main-sequence star with a stellar classification of G3/5V.[3] It is around 4.4[4] billion years old and is spinning slowly with a rotation period of roughly 27 days.[2] The star is similar to the Sun, having nearly the same size, mass, and luminosity. It is considered a solar analog.[4] The level of magnetic activity in the chromosphere is minimal.[2]
GaiaDR3 was invoked but never defined (see the help page).Marmier2013 was invoked but never defined (see the help page).Rickman_et_al_2019 was invoked but never defined (see the help page).Li2021 was invoked but never defined (see the help page).SIMBAD was invoked but never defined (see the help page).Luyten1995 was invoked but never defined (see the help page).