GJ 1005
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Cetus |
| Right ascension | 00h 15m 28.11090s[1] |
| Declination | −16° 08′ 01.6303″[1] |
| Astrometry | |
| Parallax (π) | 166.6 ± 0.8[2][nb 1] mas |
| Distance | 19.58 ± 0.09 ly (6.00 ± 0.03 pc) |
| Other designations | |
| Database references | |
| SIMBAD | data |
GJ 1005 is a system of two red dwarf stars, located in constellation Cetus at 19.58 light-years from Earth.[2]
Distance
GJ 1005 distance estimates
| Source | Parallax, mas | Distance, pc | Distance, ly | Distance, Pm | Ref. |
|---|---|---|---|---|---|
| Gliese & Jahreiß (1991) | 188.7±8.4 | 5.3+0.25 −0.23 |
17.3+0.8 −0.7 |
163.5+7.6 −7 |
[5] |
| van Altena et al. (1995) | 182.1±6.8 | 5.49+0.21 −0.2 |
17.9+0.7 −0.6 |
169.4+6.6 −6.1 |
[6] |
| Perryman et al. (1997) (Hipparcos) | 191.86±17.24 | 5.2+0.5 −0.4 |
17+1.7 −1.4 |
160.8+15.9 −13.3 |
[7] |
| Perryman et al. (1997) (Tycho) | 131.70±81.10 | 7.6+12.2 −2.9 |
24.8+39.7 −9.4 |
234.3+375.5 −89.3 |
[8] |
| Hershey & Taff (1998) | 166.6±0.8[nb 1] | 6.002±0.029 | 19.58±0.09 | 185.2±0.9 | [2] |
| Söderhjelm (1999) | 186.7±3.3 | 5.36+0.1 −0.09 |
17.47+0.31 −0.3 |
165.3+3 −2.9 |
[9] |
| van Leeuwen (2007) | 200.53±9.41 | 4.99+0.25 −0.22 |
16.3+0.8 −0.7 |
153.9+7.6 −6.9 |
[1] |
| RECONS TOP100 (2012) | 168.35±0.90[nb 2] | 5.94±0.032 | 19.37±0.1 | 183.3±1 | [10] |
Non-trigonometric distance estimates are marked in italic. The most precise estimate is marked in bold.
References
- ↑ 1.0 1.1 1.2 van Leeuwen F. (2007). "HIP 1242". Validation of the new Hipparcos reduction.
- ↑ 2.0 2.1 2.2 Hershey, John L.; Taff, L. G. (1998). "Hubble Space Telescope Fine Guidance Sensor Astrometry of the Low-Mass Binary L722-22". The Astronomical Journal 116 (3): 1440–1446. Bibcode:1998AJ....116.1440H. doi:10.1086/300516.
- ↑ Luyten, Willem Jacob (1979). "NLTT 763". NLTT Catalogue.
- ↑ Luyten, Willem Jacob (1979). "LHS 1047". LHS Catalogue, 2nd Edition.
- ↑ 5.0 5.1 Gliese, W. and Jahreiß, H. (1991). "GJ 1005". Preliminary Version of the Third Catalogue of Nearby Stars.
- ↑ 6.0 6.1 Van Altena W. F., Lee J. T., Hoffleit E. D. (1995). "GCTP 40.01". The General Catalogue of Trigonometric Stellar Parallaxes (Fourth ed.).
- ↑ 7.0 7.1 Perryman et al. (1997). "HIP 1242". The Hipparcos and Tycho Catalogues.
- ↑ 8.0 8.1 Perryman et al. (1997). "HIP 1242". The Hipparcos and Tycho Catalogues.
- ↑ Söderhjelm, Staffan (1999). "HIP 1242". Visual binary orbits and masses post Hipparcos.
- ↑ "RECONS TOP100". THE ONE HUNDRED NEAREST STAR SYSTEMS brought to you by RECONS (Research Consortium On Nearby Stars). 2012.
Notes
- ↑ 1.0 1.1 Absolute parallax, but error of parallax taken from relative parallax. Error of absolute parallax should be larger — at least, larger than error of RECONS' weighted parallax 0.90 mas.
- ↑ Weighted parallax based on parallaxes from van Altena et al. (1995), Hershey (1998) and Söderhjelm (1999).
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