Star type
g A: M3
g B: M4 (fainter of pair)
Distance from Earth
g 13.14 ly
Star Service No.
g NA
Age
g A: NA
g B: NA
Diameter/Mass/Temp (xSol)
g A: NA; 0.27 M; 3180 K
g B: NA; 0.16 M; 2890 K
Brightness (xSol)
g A: 0.16%
g B: 0.042%
Metallicity
g A: NA
g B: NA
Comparison to Sol
g A: NA
g B: NA
Picture of stars
g See picture
Star system features
g B: An irregular flare that typically doubles in brightness and then returns to normal over an 8 minute period
Known planets
g A: None
g B: None
Habitable zone
g A: NA
g B: NA
Orbital map
g Stars orbit each other every 44.6 years. On average, the two stars are separated by 9.5 AUs, which is roughly the average distance of Saturn from the Sun. However, their eccenctric mutual orbit causes their distance to vary between 5.5 AUs at periastron, to 13.5 at apastron.
View from star
g A or B: Sky map
Nearby stars
(Star systems with 10 light years)
g NA
Map locating star system
g http://anzwers.org/free/universe/20lys.html
Location in Earth sky
g In the constellation of Cepheus; not visible to naked eye
Other names
g A: ADS 15972
g A-B: GJ 860 AB
g A-B: DO Cephei AB
g A: LHS 3814
g A: Vys 207 A
g B: LHS 3815
g B: Vys 207 B
g SCR 1845-6357
g Gl 232-075
g BD +56°2783
g HD 239960
g GCTP 5438.00
g HIP 110893
Sci-fi mentions
g NA
Get your SF book manuscript edited
.
Wednesday, July 25, 2007
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