NGTS-1
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| Observation data Epoch J2000.0 (ICRS) Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Columba[1] |
| Right ascension | 05h 30m 51.45227s[2] |
| Declination | −36° 37′ 50.8957″[2] |
| Apparent magnitude (V) | 15.57±0.03[3] |
| Characteristics | |
| Evolutionary stage | main sequence star[4] |
| Spectral type | M0.5[4] |
| B−V color index | +1.37[3] |
| R−I color index | +1.39[5] |
| Astrometry | |
| Radial velocity (Rv) | 97.18±0.01[4] km/s |
| Proper motion (μ) | RA: −31.887 mas/yr[2] Dec.: −41.077 mas/yr[2] |
| Parallax (π) | 4.5935±0.017 mas[2] |
| Distance | 710 ± 3 ly (217.7 ± 0.8 pc) |
| Details[4] | |
| Mass | 0.617+0.023 −0.062 M☉ |
| Radius | 0.573±0.077 R☉ |
| Luminosity | (7.03±0.09)×10−2[6] L☉ |
| Surface gravity (log g) | 4.71±0.23 cgs |
| Temperature | 3,916+71 −63 K |
| Rotational velocity (v sin i) | <1.0 km/s |
| Other designations | |
| UCAC2 16099071, NGTS-1, UCAC4 267-006604, DENIS J053051.4-363750, TIC 192826603 USNO-B1.0 0533-00066386, 2MASS J05305145-3637508,UCAC3 107-15281, Gaia DR2 4821739369794767744 | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
NGTS-1, also designated as TOI-551 is a solitary star located in the southern constellation Columba, the dove. With an apparent magnitude of 15.52,[3] NGTS-1 can only be seen through a powerful telescope. Gaia DR3 parallax measurements imply a distance of 710 light-years[2] and it is drifting away rapidly with a heliocentric radial velocity of 97.2 km/s.[4]
