Gliese 876
Sign in to saveAlso known as IL Aquarii, Ross 780, BD-15 6290
star in the constellation Aquarius
Astronomical data · SIMBAD
- Object type
- **
- Spectral type
- M3.5V
- Distance
- 15 light-years
- Redshift
- z = -0.000004903380177778693
- Coordinates
- RA 343.3197° · Dec -14.2637°
via SIMBAD · CDS Strasbourg
Key facts
- Constellation
- Aquarius
- Pronunciation
- / ˈ ɡ l iː z ə /
- Right ascension
- 22 53 16.73258
- Declination
- −14 ° 15 ′ 49.3041 ″
- Apparent magnitude v
- 10.1920(17)
- Spectral type
- M4V
- Apparent magnitude j
- 5.934(19)
- Apparent magnitude h
- 5.349(49)
- Apparent magnitude k
- 5.010(21)
- Variable type
- BY Draconis
via Wikipedia infobox
Wikidata facts
- Instance of
- rotating variable star
- Constellation
- Aquarius
- Child body
- Gliese 876 e
- Distance from Earth
- 4.7
- Radius
- 0.36
- Mass
- 0.334
- Variable-star type
- rotating variable star
- Image
- Artist's concept of Gliese 876 b.jpg
Show 21 more facts
- spectral class
- M4 V
- topic's main category
- Category:Gliese 876
- Commons category
- Gliese 876
- catalog code
- UBV M 5470
- right ascension
- 343.31971909853587
- declination
- -14.26369557005139
- effective temperature
- 3350
- absolute magnitude
- 11.82
- parallax
- 214.0380
- radial velocity
- -1.47
- apparent magnitude
- 8.875059
- metallicity
- 0.05
- epoch
- J2000.0
- rotation period
- 96.9
- stellar rotational velocity
- 2.75
- luminosity
- 0.0122
- surface gravity
- 100000
- topic has template
- Template:Gliese 876
- right ascension component of proper motion
- 957.715
- declination component of proper motion
- -673.601
- age estimated by a dating method
- 2.5
Sources (2)
via Wikidata · CC0
~9 min read
Encyclopedic overview
Gliese 876 is a red dwarf star 15.2 light-years (4.7 parsecs) away from Earth in the constellation of Aquarius. It is one of the closest known stars to the Sun confirmed to possess a planetary system with more than two planets, the closest of which is Barnard's Star which is 6 ly away; as of 2018, four extrasolar planets have been found to orbit the star. The planetary system is also notable for the orbital properties of its planets. It is the only known system of orbital companions to exhibit a near-triple conjunction in the rare phenomenon of Laplace resonance (a type of resonance first noted in Jupiter's inner three Galilean moons). It is also the first extrasolar system around a normal star with measured coplanarity. While planets b and c are located in the system's habitable zone, they are giant planets believed to be analogous to Jupiter.
Distance and visibility
Excerpted from Wikipedia’s “Gliese 876” article, available under the CC BY-SA 4.0 licence.