HD 98649
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Crater |
| Right ascension | 11h 20m 51.76855s |
| Declination | −23° 13′ 02.4295″ |
| Apparent magnitude (V) | +8.00 |
| Characteristics | |
| Spectral type | G3/5V |
| B−V color index | +0.658 |
| Astrometry | |
| Radial velocity (Rv) | 4.25±0.12 km/s |
| Proper motion (μ) | RA: −199.735±0.022 mas/yr Dec.: −177.620±0.017 mas/yr |
| Parallax (π) | 23.7206±0.0216 mas |
| Distance | 137.5 ± 0.1 ly (42.16 ± 0.04 pc) |
| Absolute magnitude (MV) | +4.91 |
| Details | |
| Mass | 0.97±0.02 M☉ |
| Radius | 1.01±0.02 R☉ |
| Luminosity (bolometric) | 0.968±0.019 L☉ |
| Luminosity (visual, LV) | 0.98±0.003 L☉ |
| Surface gravity (log g) | 4.38±0.08 cgs |
| Temperature | 5,759±35 K |
| Metallicity [Fe/H] | 0.05±0.04 dex |
| Rotation | 27±4.0 days |
| Rotational velocity (v sin i) | 1.19 km/s |
| Age | 4.44+0.68 −0.58 Gyr |
| Other designations | |
| BD−22°3121, HD 98649, HIP 55409, SAO 179793, LTT 4199 | |
| 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 situated 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. With an apparent visual magnitude of +8.00, 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.
The spectrum of HD 98649 presents as an ordinary G-type main-sequence star with a stellar classification of G3/5V. It is around 4.4 billion years old and is spinning slowly with a rotation period of roughly 27 days. The star is similar to the Sun, having nearly the same size, mass, and luminosity. It is considered a solar analog. The level of magnetic activity in the chromosphere is minimal.