Stein 2051

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Coordinates: Sky map 04h 31m 11.52059s, +58° 58′ 37.4806″

Stein 2051
Astrometry
Parallax (π) 180.6 ± 0.8[1] mas
Distance 18.06 ± 0.08 ly
(5.54 ± 0.02 pc)
Other designations
The system:

Stein 2051
G 175-34
GJ 169.1[2]
PLX 986.01[1]
WDS J04312+5858AB
HIP 21088[3]
A:
NLTT 13373[4]
LHS 26[5]
TYC 3744-412-1[6]
2MASS J04311147+5858375
WISE J043113.20+585816.7
B:

AC +58 2500
EGGR 180
WD 0426+58
WD 0426+585
WD 0426+588
NLTT 13375[7]
LHS 27[8]
TYC 3744-2062-1[9]
2MASS J04311201+5858476
Database references
SIMBAD The system
A
B

Stein 2051 (Gliese 169.1, G 175-034, LHS 26/27) is a nearby binary star system, containing a red dwarf (component A) and a degenerate star (white dwarf) (component B), located in constellation Camelopardalis at 18.06 ly from Earth.[1]

Stein 2051 is the nearest (red dwarf + white dwarf) separate binary system (40 Eridani BC is located closer (at 16.26 light-years),[10] but it is a part of a triple star system).

Stein 2051 B is the 6th nearest white dwarf after Sirius B, Procyon B, van Maanen's star, LP 145-141 and 40 Eridani B.

Distance[edit]

Stein 2051 distance estimates

Source Parallax, mas Distance, pc Distance, ly Distance, Pm Ref.
Gliese & Jahreiß (1991) 181.9±1.1 5.5±0.03 17.93±0.11 169.6±1 [2]
van Altena et al. (1995) 180.6±0.8 5.537+0.025
−0.024
18.06±0.08 170.9±0.8 [1]
Perryman et al. (1997) (Hipparcos) 181.36±3.67 5.51±0.11 18±0.4 170.1+3.5
−3.4
[3]
Perryman et al. (1997) (Tycho) (A) (absents) [6]
Perryman et al. (1997) (Tycho) (B) (absents) [9]
van Leeuwen (2007) 179.27±3.23 5.58±0.1 18.2±0.3 172.1+3.2
−3
[11]
RECONS TOP100 (2012) 180.52±0.78[note 1] 5.54±0.024 18.07±0.08 170.9±0.7 [12]

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

Properties[edit]

The brighter of this two stars is A (a red dwarf), but the more massive is component B (a white dwarf).

Notes[edit]

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

References[edit]

  1. ^ a b c d Van Altena W. F., Lee J. T., Hoffleit E. D. (1995). "GCTP 986.01". The General Catalogue of Trigonometric Stellar Parallaxes (Fourth ed.). Retrieved 2014-11-23. 
  2. ^ a b Gliese, W. and Jahreiß, H. (1991). "Gl 169.1". Preliminary Version of the Third Catalogue of Nearby Stars. Retrieved 2014-11-23. 
  3. ^ a b Perryman et al. (1997). "HIP 21088". The Hipparcos and Tycho Catalogues. Retrieved 2014-11-23. 
  4. ^ Luyten, Willem Jacob (1979). "NLTT 13373". NLTT Catalogue. 
  5. ^ Luyten, Willem Jacob (1979). "LHS 26". LHS Catalogue, 2nd Edition. 
  6. ^ a b Perryman et al. (1997). "HIP 21088". The Hipparcos and Tycho Catalogues. Retrieved 2014-11-23. 
  7. ^ Luyten, Willem Jacob (1979). "NLTT 13375". NLTT Catalogue. 
  8. ^ Luyten, Willem Jacob (1979). "LHS 27". LHS Catalogue, 2nd Edition. 
  9. ^ a b Perryman et al. (1997). "TYC 3744-2062-1". The Hipparcos and Tycho Catalogues. Retrieved 2014-11-23. 
  10. ^ van Leeuwen F. (2007). "HIP 19849". Validation of the new Hipparcos reduction. Retrieved 2014-11-21. 
  11. ^ van Leeuwen F. (2007). "HIP 21088". Validation of the new Hipparcos reduction. Retrieved 2014-11-23. 
  12. ^ "RECONS TOP100". THE ONE HUNDRED NEAREST STAR SYSTEMS brought to you by RECONS (Research Consortium On Nearby Stars). 2012. Retrieved 2014-11-23. 

External links[edit]