Groombridge 34

Encyclopedia : G : GR : GRO : Groombridge 34

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|- style="vertical-align: top;" | B-V color index | |- style="vertical-align: top;" | U-B color index | |- style="vertical-align: top;" | Variable type |

|- ! style="background-color: #FFFFC0;" colspan="2" | Visual binary orbit |- style="vertical-align: top;" | Companion | Gl 15 B |- style="vertical-align: top;" | Period (P) | 2600 years |- style="vertical-align: top;" | Semimajor axis (a) | 41.15" |- style="vertical-align: top;" | Eccentricity (e) | 0.00 |- style="vertical-align: top;" | Inclination (i) | 61.4° |- style="vertical-align: top;" | Node (Ω) | 45.3° |- style="vertical-align: top;" | Periastron epoch (T) | 1745

|- ! style="background-color: #FFFFC0;" colspan="2" | Other designations |- | colspan="2" |

|} Groombridge 34 is a binary star system that consists of two red dwarf stars in a nearly circular orbit with a separation of about 147 astronomical units. 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).

In fiction

In Space above and beyond, Groombridge 34 is the location of the largest extrasolar USMC fleet base, and is the expected target of the chigs in the pilot episode(though this intelligence is later revealed to be incorrect). It is also the location of the first part of the episode 'Mutiny'.

References

• Lippincott, S. L., "Parallax and orbital motion of the 2 nearby long-period visual binaries Groombridge 34 and ADS 9090", 1972, ''Astronomical Journal, 77, 165.

See also

• List of nearest stars

External links

• [Alcyone Emphemeris]
• [SolStation entry]

 

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