Groombridge 34
Encyclopedia
Groombridge 34 is a binary star system located about 11.7 light years from our own Sun
. It consists of two red dwarf
stars in a nearly circular orbit with a separation of about 147 astronomical unit
s. Both stars in this pair exhibit variability due to random flares and they have been given variable star designations. (The brighter member Groombridge 34 A is designated GX And, and the other member is designated GQ And).
Sun
The Sun is the star at the center of the Solar System. It is almost perfectly spherical and consists of hot plasma interwoven with magnetic fields...
. It consists of two red dwarf
Red dwarf
According to the Hertzsprung-Russell diagram, a red dwarf star is a small and relatively cool star, of the main sequence, either late K or M spectral type....
stars in a nearly circular orbit with a separation of about 147 astronomical unit
Astronomical unit
An astronomical unit is a unit of length equal to about or approximately the mean Earth–Sun distance....
s. Both stars in this pair exhibit variability due to random flares and they have been given variable star designations. (The brighter member Groombridge 34 A is designated GX And, and the other member is designated GQ And).
See also
- Groombridge 34 in fiction
- List of nearest stars
External links
- SolStation entry
- www.richweb.f9.co.uk/
- Image Groombridge 34
- The One Hundred Nearest Star Systems, RECONS
Components
| NAME | Right ascension Right ascension Right ascension is the astronomical term for one of the two coordinates of a point on the celestial sphere when using the equatorial coordinate system. The other coordinate is the declination.-Explanation:... |
Declination Declination In astronomy, declination is one of the two coordinates of the equatorial coordinate system, the other being either right ascension or hour angle. Declination in astronomy is comparable to geographic latitude, but projected onto the celestial sphere. Declination is measured in degrees north and... |
Apparent magnitude Apparent magnitude The apparent magnitude of a celestial body is a measure of its brightness as seen by an observer on Earth, adjusted to the value it would have in the absence of the atmosphere... (V) |
Spectral type | Database references |
|---|---|---|---|---|---|
| ADS 246 B (ADS 246 AB) | 00h 18m 24s | +44° 01' 00 | 11.0 | Simbad | |
| ADS 246 C (V* GQ And) | 00h 18m 25.868s | +44° 01' 38.44 | 11.4 | M3.5 | Simbad |
| ADS 246 D (GJ 15 C) | 00h 18m 00.13s | +44° 00' 29.2 | 11.4 | M5 | Simbad |