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Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Ara |
Right ascension | 16h 40m 50.48446s [1] |
Declination | −60° 26′ 47.2030″ [1] |
Apparent magnitude (V) | 6.18 [2] |
Characteristics | |
Spectral type | F6V [3] |
Apparent magnitude (B) | 6.660 |
Apparent magnitude (V) | 6.223 |
Apparent magnitude (J) | 5.217 |
Apparent magnitude (H) | 4.969 |
Apparent magnitude (K) | 4.886 |
B−V color index | +0.17 [2] |
Astrometry | |
Radial velocity (Rv) | 3.9±0.2 [4] km/s |
Proper motion (μ) | RA: +59.02 [1] mas/yr Dec.: –74.20 [1] mas/yr |
Parallax (π) | 31.92 ± 0.53 [1] mas |
Distance | 102 ± 2 ly (31.3 ± 0.5 pc) |
Details | |
HD 149837 A | |
Mass | 1.25 [5] M☉ |
Luminosity | 2.8 [6] L☉ |
Surface gravity (log g) | 4.16 [3] cgs |
Temperature | 6,354 [3] K |
Metallicity [Fe/H] | −0.08 [3] dex |
Age | 2.7 [7] Gyr |
HD 149837 B | |
Mass | 0.79 [5] M☉ |
Other designations | |
Database references | |
SIMBAD | data |
HD 149837 is a binary star in the southern constellation of Ara.
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