Gliese 625

AC 54 1646-56
Observation data; Epoch J2000 Equinox J2000
Constellation	Draco
Right ascension	16h 25m 24.6233s
Declination	54° 18′ 14.7658″
Apparent magnitude (V)	10.17
Characteristics
Spectral type	M2.0V
Astrometry
Proper motion (μ)	RA: 432.073±0.064 mas/yr ; Dec.: −171.668±0.059 mas/yr
Parallax (π)	154.4710 ± 0.0273 mas
Distance	21.114 ± 0.004 ly ; (6.474 ± 0.001 pc)
Other designations
	GJ 625, HIP 80459, AC +54 1646, G 202-48, G 226-7, G 225-62, LSPM J1625+5418, NLTT 42804, PLX 3740.03, TYC 3878-1193-1, 2MASS J16252459+5418148
Database references
SIMBAD	data

GJ 625 (AC 54 1646-56) is a red dwarf star of spectral type M2.0V, located in the constellation Draco, 21.1 light-years from Earth.^[1]

Planetary system

On May 18, 2017, a planet was detected orbiting AC 54 1646-56 by the HARPS-N telescope.^[2] The planet, AC 54 1646-56b (GJ 625b), orbits on the inner edge of the circumstellar habitable zone of its star, and may support liquid water.

The Gliese 625 planetary system
Companion (in order from star)	Mass	Semimajor axis (AU)	Orbital period (days)	Eccentricity	Inclination	Radius
b	2.82±0.51 $M$ _🜨	0.078	14.628±0.013	—	—	—

References

^ ^a ^b ^c ^d ^e ^f Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
^ Suárez Mascareño, A.; et al. (2017). "HADES RV Programme with HARPS-N at TNG. V. A super-Earth on the inner edge of the habitable zone of the nearby M dwarf GJ 625". Astronomy and Astrophysics. 605. A92. arXiv:1705.06537. Bibcode:2017A&A...605A..92S. doi:10.1051/0004-6361/201730957.

This article about a red dwarf is a stub. You can help Wikipedia by expanding it.

[Gaia_DR2-1] ^ ^a ^b ^c ^d ^e ^f Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.

[Suárez_Mascareño2017-2] Suárez Mascareño, A.; et al. (2017). "HADES RV Programme with HARPS-N at TNG. V. A super-Earth on the inner edge of the habitable zone of the nearby M dwarf GJ 625". Astronomy and Astrophysics. 605. A92. arXiv:1705.06537. Bibcode:2017A&A...605A..92S. doi:10.1051/0004-6361/201730957.

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