Gliese 896

GJ 896
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Pegasus
Right ascension 23h 31m 52.17898s[1]
Declination +19° 56′ 14.1505″[1]
Apparent magnitude (V) 10.165 (10.35 / 12.4)
Characteristics
Spectral type M3.5V / M4.5V
Astrometry
Parallax (π)161.76 ± 1.66[1] mas
Distance20.2 ± 0.2 ly
(6.18 ± 0.06 pc)
Other designations
The system:
BD +19 5116[2]
EQ Pegasi
LTT 16919
LFT 1799
G 68-24
G 129-19
G 128-71
PM J23318+1956
PM 23293+1940
NLTT 57135[3]
LHS 3965[4]
IRAS 23293+1939
GJ 896[5]
PLX 5694[6]
WDS J23317+1956AB
GSC 01723-00023
HIP 116132[7]
AKARI-IRC-V1 J2331524+195613[8]

A:
TYC 1723-23-1[9][10]
2MASS J23315208+1956142

B:
LTT 16920
LFT 1800
NLTT 57136[11]
LHS 3966[12]
TYC 1723-23-2[13][14]
2MASS J23315244+1956138
Database references
SIMBADThe system
A
B

Gliese 896 (EQ Pegasi) is a system of two red dwarf stars of spectral types M3.5V and M4.5V, located in constellation Pegasus at 20 light-years from Earth.[1]

Distance

Gliese 896 distance estimates

Source Parallax, mas Distance, pc Distance, ly Distance, Pm Ref.
Woolley et al. (1970) 155±9 6.5±0.4 21+1.3
−1.2		 199.1+12.3
−10.9		 [15]
Gliese & Jahreiß (1991) 151.9±3.7 6.58±0.16 21.5±0.5 203.1+5.1
−4.8		 [5]
van Altena et al. (1995) 150.9±4.8 6.63+0.22
−0.2		 21.6±0.7 204.5+6.7
−6.3		 [6]
Perryman et al. (1997) (Hipparcos) 160.06±2.81 6.25±0.11 20.4±0.4 192.8+3.4
−3.3		 [7]
Perryman et al. (1997) (Tycho) (A) 141.40±33.90 7.1+2.2
−1.4		 23.1+7.3
−4.5		 218.2+68.8
−42.2		 [9]
Perryman et al. (1997) (Tycho) (B) (absents) [13]
Weis et al. (1999) 147.1±6.6 6.8+0.32
−0.29		 22.2±1 209.8+9.9
−9		 [16]
van Leeuwen (2007) 161.76±1.66 6.18±0.06 20.16+0.21
−0.2		 190.8+2
−1.9		 [1]
RECONS TOP100 (2012) 159.88±1.53[nb 1] 6.25±0.06 20.4+0.2
−0.19		 193+1.9
−1.8		 [17]

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

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 van Leeuwen F. (2007). "HIP 116132". Validation of the new Hipparcos reduction.
  2. ↑ Argelander, Friedrich Wilhelm (1859–1903). "BD +19 5116". Bonner Durchmusterung.
  3. ↑ Luyten, Willem Jacob (1979). "NLTT 57135". NLTT Catalogue.
  4. ↑ Luyten, Willem Jacob (1979). "LHS 3965". LHS Catalogue, 2nd Edition.
  5. ↑ 5.0 5.1 Gliese, W. and Jahreiß, H. (1991). "Gl 896". Preliminary Version of the Third Catalogue of Nearby Stars.
  6. ↑ 6.0 6.1 Van Altena W. F., Lee J. T., Hoffleit E. D. (1995). "GCTP 5694". The General Catalogue of Trigonometric Stellar Parallaxes (Fourth ed.).
  7. ↑ 7.0 7.1 Perryman et al. (1997). "HIP 116132". The Hipparcos and Tycho Catalogues.
  8. ↑ ISAS/JAXA (2010). "AKARI-IRC-V1 2331524+195613". AKARI/IRC All-Sky Survey Point Source Catalogue (Version 1.0).
  9. ↑ 9.0 9.1 Perryman et al. (1997). "HIP 116132". The Hipparcos and Tycho Catalogues.
  10. ↑ Hog et al. (2000). "TYC 1723-23-1". The Tycho-2 Catalogue.
  11. ↑ Luyten, Willem Jacob (1979). "NLTT 57136". NLTT Catalogue.
  12. ↑ Luyten, Willem Jacob (1979). "LHS 3966". LHS Catalogue, 2nd Edition.
  13. ↑ 13.0 13.1 Perryman et al. (1997). "TYC 1723-23-2". The Hipparcos and Tycho Catalogues.
  14. ↑ Hog et al. (2000). "TYC 1723-23-2". The Tycho-2 Catalogue.
  15. ↑ Woolley R.; Epps E. A.; Penston M. J.; Pocock S. B. (1970). "Woolley 896". Catalogue of stars within 25 parsecs of the Sun.
  16. ↑ Weis, E. W.; Lee, J. T.; Lee, A. H.; Griese, J. W., III; Vincent, J. M.; Upgren, A. R. (1999). "Parallaxes and Proper Motions. XX.". The Astronomical Journal 117 (2): 1037–1041. Bibcode:1999AJ....117.1037W. doi:10.1086/300747.
  17. ↑ "RECONS TOP100". THE ONE HUNDRED NEAREST STAR SYSTEMS brought to you by RECONS (Research Consortium On Nearby Stars). 2012.

Notes

  1. ↑ Weighted parallax based on parallaxes from van Altena et al. (1995), Weis et al. (1999) and van Leeuwen (2007).