NGTS-3
NGTS-3 is a star located in the southern constellation Columba. With an apparent magnitude of 14.67, it requires a powerful telescope to observe. However, NGTS-3 is actually an unresolved spectroscopic binary. The system is located 2,480 light years away based on parallax, but is drifting away with a radial velocity of 8.57 km/s.
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Columba |
| Right ascension | 06h 17m 46.75s |
| Declination | −35° 42′ 23.05″ |
| Apparent magnitude (V) | 14.67±0.01 |
| Characteristics | |
| Spectral type | G6 V + K1 V |
| B−V color index | +0.77 |
| R−I color index | +0.36 |
| Astrometry | |
| Radial velocity (Rv) | 8.57±0.05 km/s |
| Proper motion (μ) | RA: -8.838 mas/yr Dec.: +8.771 mas/yr |
| Parallax (π) | 1.3153 ± 0.0193 mas |
| Distance | 2,480 ± 40 ly (760 ± 10 pc) |
| Details | |
| A | |
| Mass | 1.02±0.09 M☉ |
| Radius | 0.93±0.23 R☉ |
| Luminosity | 0.72±0.03 L☉ |
| Surface gravity (log g) | 4.45 cgs |
| Temperature | 5,600±150 K |
| Metallicity [Fe/H] | 0.12±0.15 dex |
| Rotational velocity (v sin i) | 1.0±0.7 km/s |
| Other designations | |
Gaia DR2 2885350546895266432 | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
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