GJ 1002

GJ 1002
Observation data
Epoch J2000      Equinox J2000
Constellation Cetus
Right ascension 00h 06m 43.205s[1]
Declination –07° 32′ 16.83″[1]
Apparent magnitude (V) 13.73
Characteristics
Spectral type M5.5 V
U−B color index 1.78
B−V color index 1.97
Variable type None
Astrometry
Radial velocity (Rv)–41 km/s
Proper motion (μ) RA: –749.4 ± 8.0[1] mas/yr
Dec.: –1922.1 ± 8.0[1] mas/yr
Parallax (π)212.8 ± 3.3[2] mas
Distance15.3 ± 0.2 ly
(4.70 ± 0.07 pc)
Absolute magnitude (MV)15.37
Other designations
GJ 1002, LHS 2, GCTP 9.01, G 158-27.
Database references
SIMBADdata

GJ 1002 is a red dwarf star. It is located relatively near our Sun, at a distance of 15.31 light years, in the constellation Cetus.

This appears to be a relatively quiescent star, and no flare activity has been detected.

Distance

GJ 1002 distance estimates

Source Parallax, mas Distance, pc Distance, ly Distance, Pm Ref.
Gliese & Jahreiß (1991) 212.8±3.3 4.7±0.07 15.33+0.24
−0.23		 145+2.3
−2.2		 [2]
van Altena et al. (1995) 213.0±3.6 4.69±0.08 15.31+0.26
−0.25		 144.9+2.5
−2.4		 [3]
RECONS TOP100 (2012) 213.00±3.60[nb 1] 4.69±0.08 15.31+0.26
−0.25		 144.9+2.5
−2.4		 [4]

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

See also

References

  1. ↑ 1.0 1.1 1.2 1.3 Zacharias, N. et al. (2013). "The Fourth US Naval Observatory CCD Astrograph Catalog (UCAC4)". The Astronomical Journal 145 (2). 44. arXiv:1212.6182. Bibcode:2013AJ....145...44Z. doi:10.1088/0004-6256/145/2/44.Vizier catalog entry
  2. ↑ 2.0 2.1 Gliese, W. and Jahreiß, H. (1991). "GJ 1002". Preliminary Version of the Third Catalogue of Nearby Stars. Retrieved 2014-11-22.
  3. ↑ Van Altena W. F., Lee J. T., Hoffleit E. D. (1995). "GCTP 9.01". The General Catalogue of Trigonometric Stellar Parallaxes (Fourth ed.). Retrieved 2014-11-22.
  4. ↑ "RECONS TOP100". THE ONE HUNDRED NEAREST STAR SYSTEMS brought to you by RECONS (Research Consortium On Nearby Stars). 2012. Retrieved 2014-11-22.

Notes

  1. ↑ Parallax from van Altena et al. (1995).

External links