Observation data Epoch J2000 Equinox J2000 |
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Constellation | Centaurus |
Right ascension | 12h 59m 04.71s |
Declination | −43° 36′ 24.4″ |
Astrometry | |
Parallax (π) | 276 ± 41[1] mas |
Distance | approx. 12 ly (approx. 3.6 pc) |
Other designations | |
2MASS J12590470-4336243
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Database references | |
SIMBAD | data |
SIPS 1259-4336 is a nearby red dwarf star, located in constellation Centaurus at 11.8 light-years from Earth,[1] or, according unpublished RECONS trigonometric distance estimate, taken from website en.allexperts.com, at 25.4 light-years from Earth.[2]
History of observations
Discovery of SIPS 1259-4336 was published in 2005 by Deacon et al. The star was detected by its high proper motion from the Southern Infrared Proper Motion Survey (SIPS).[1]
Distance
There is an unpublished trigonometric distance estimate from website en.allexperts.com: Tom Whiting e-mailed Todd Henry from RECONS team around 2008, and the reply was that theirs unpublished distance estimate of SIPS 1259-4336 is ±0.05 7.79parsecs (±0.2 25.4light-years).[2]
As of May 2015, the only published distance estimates of SIPS 1259-4336 besides trigonometric parallax with high uncertainty from the star's discovery paper (±41 mas 276[1]) is a parallax without error (~128 mas) from Burgasser et al. (2015). References of SIPS 1259-4336 data, including the parallax, were Deacon et al. (2005a) and T. Henry, priv. comm.[3]
Source | Parallax, mas | Distance, pc | Distance, ly | Distance, Pm | Ref. |
---|---|---|---|---|---|
Deacon et al. (2005) | 276±41 | 3.6+0.6 −0.5 |
11.8+2.1 −1.5 |
111.8+19.5 −14.5 |
[1] |
en.allexperts.com (2008) | 7.79±0.05[nb 1] | 25.41±0.16 | 240.37±1.54 | [2] | |
solstation.com | 7.91±0.06 | 25.8±0.2 | 244.09±1.89 | [4] | |
Burgasser et al. (2015) | ~ 128[nb 2] | ~ 7.8 | ~ 25.5 | ~ 241.1 | [3] |
Non-trigonometric distance estimates are marked in italic. The most precise estimate is marked in bold.
References
- ^ a b c d e Deacon, N. R.; Hambly, N. C.; Cooke, J. A. (2005). "Southern infrared proper motion survey. I. Discovery of new high proper motion stars from first full hemisphere scan". Astronomy and Astrophysics 435 (1): 363–372. arXiv:astro-ph/0412127. Bibcode:2005A&A...435..363D. doi:10.1051/0004-6361:20042002.
- ^ a b c en.allexperts.com, Astronomy/SIPS 1259-4336
- ^ a b Burgasser, Adam J.; Gillon, Michaël; Melis, Carl; Bowler, Brendan P.; Michelsen, Eric L.; Bardalez Gagliuffi, Daniella; Gelino, Christopher R.; Jehin, E.; Delrez, L.; Manfroid, J.; Blake, Cullen H. (2015). "WISE J072003.20-084651.2: an Old and Active M9.5 + T5 Spectral Binary 6 pc from the Sun". The Astronomical Journal 149 (3): 104. arXiv:1410.4288. Bibcode:2015AJ....149..104B. doi:10.1088/0004-6256/149/3/104.
- ^ solstation.com, More New Objects (20 to 33 ly away)
Notes
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