Gliese 623

Gliese 623 is a dim double star 26.3 light years from Earth in the constellation Hercules. It was photographed by the NASA/ESA Hubble Space Telescope's Faint Object Camera in 1994. The binary system consists of two red dwarfs orbiting each other at a distance of 1.9 astronomical units.

Gliese 623

Gliese 623, imaged by Hubble. The fainter companion is to the right.
Observation data Epoch J2000      Equinox J2000
Constellation	Hercules
Right ascension	16^h 24^m 09.325^s[1]
Declination	+48° 21′ 10.46″[1]
Characteristics
Spectral type	M3.0V / M D ~
Astrometry
Proper motion (μ)	RA: 1146.26±1.21[1] mas/yr Dec.: −451.86±1.11[1] mas/yr
Parallax (π)	124.12 ± 1.16[1] mas
Distance	26.3 ± 0.2 ly (8.06 ± 0.08 pc)
Other designations
GJ 623, HIP 80346, G 202-45, LHS 417
Database references
SIMBAD	data

See also

• List of star systems within 25–30 light-years

References

Further reading

• Barbieri, C.; De Marchi, G.; Nota, A.; Corrain, G.; Hack, W.; Ragazzoni, R.; MacChetto, D. (November 1996). "First HST/FOC images of the low mass companion of the astrometric binary Gliese 623". Astronomy and Astrophysics. 315 (1): 418–420. Bibcode:1996A&A...315..418B.
• Martinache; Lloyd, James P.; Ireland, Michael J.; Yamada, Ryan S.; Tuthill, Peter G. (2007). "Precision Masses of the Low-Mass Binary System GJ 623". The Astrophysical Journal. 661 (1): 496–501. arXiv:astro-ph/0612138. Bibcode:2007ApJ...661..496M. doi:10.1086/513868.

External links

• Nasa page