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 |
Distance | 15.3 ± 0.2 ly (4.70 ± 0.07 pc) |
Absolute magnitude (MV) | 15.37 |
Other designations | |
Database references | |
SIMBAD | data |
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
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
- ^ a b c d 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
- ^ a b Gliese, W. and Jahreiß, H. (1991). "GJ 1002". Preliminary Version of the Third Catalogue of Nearby Stars. Retrieved 2014-11-22.
- ^ 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.
- ^ "RECONS TOP100". THE ONE HUNDRED NEAREST STAR SYSTEMS brought to you by RECONS (Research Consortium On Nearby Stars). 2012. Retrieved 2014-11-22.
Notes
- ^ Parallax from van Altena et al. (1995).
External links
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