Gliese 625

GJ 625
Observation data
Epoch J2000      Equinox J2000
Constellation Draco
Right ascension 16h 25m 24.62333s
Declination 54° 18′ 14.7733″
Apparent magnitude (V) 10.17
Characteristics
Spectral type M2.0V
Astrometry
Parallax (π)153.46 ± 0.99[1] mas
Distance21.3 ± 0.1 ly
(6.52 ± 0.04 pc)
Other designations
AC +54 1646
G 202-48
G 226-7
G 225-62
NLTT 42804
GJ 625
PLX 3740.03
HIP 80459
TYC 3878-1193-1
2MASS J16252459+5418148
LSPM J1625+5418
Database references
SIMBADdata

Gliese 625 is a red dwarf star of spectral type M2.0V, located in constellation Draco at 21.3 light-years from Earth.[1]

Distance

Gliese 625 distance estimates

Source Parallax, mas Distance, pc Distance, ly Distance, Pm Ref.
Woolley et al. (1970) ~ 69 ~ 14.5 ~ 47.3 ~ 447.2 [2]
Gliese & Jahreiß (1991) 159.3±4.6 6.28+0.19
−0.18		 20.5±0.6 193.7+5.8
−5.4		 [3]
van Altena et al. (1995) 151.1±2.5 6.62±0.11 21.6±0.4 204.2+3.4
−3.3		 [4]
Perryman et al. (1997) (Hipparcos) 151.93±1.11 6.58±0.05 21.47±0.16 203.1±1.5 [5]
Perryman et al. (1997) (Tycho) 126.70±27.00 7.9+2.1
−1.4		 25.7+7
−4.5		 243.5+66
−42.8		 [6]
van Leeuwen (2007) 153.46±0.99 6.52±0.04 21.25±0.14 201.1±1.3 [1]
RECONS TOP100 (2012) 153.14±0.92[nb 1] 6.53±0.04 21.3±0.13 201.5±1.2 [7]

Non-trigonometric distance estimates are marked in italic. The most precise estimate is marked in bold.

References

  1. ↑ 1.0 1.1 1.2 van Leeuwen F. (2007). "HIP 80459". Validation of the new Hipparcos reduction.
  2. ↑ Woolley R.; Epps E. A.; Penston M. J.; Pocock S. B. (1970). "Woolley 625". Catalogue of stars within 25 parsecs of the Sun.
  3. ↑ Gliese, W. and Jahreiß, H. (1991). "Gl 625". Preliminary Version of the Third Catalogue of Nearby Stars.
  4. ↑ Van Altena W. F., Lee J. T., Hoffleit E. D. (1995). "GCTP 3740.03". The General Catalogue of Trigonometric Stellar Parallaxes (Fourth ed.).
  5. ↑ Perryman et al. (1997). "HIP 80459". The Hipparcos and Tycho Catalogues.
  6. ↑ Perryman et al. (1997). "HIP 80459". The Hipparcos and Tycho Catalogues.
  7. ↑ "RECONS TOP100". THE ONE HUNDRED NEAREST STAR SYSTEMS brought to you by RECONS (Research Consortium On Nearby Stars). 2012.

Notes

  1. ↑ Weighted parallax based on parallaxes from van Altena et al. (1995) and van Leeuwen (2007).