Nearby stars catalogue < LIVING fUTURE

Star Castor Aa

Multiple star system Castor Aa is located 50.9 light years away from the Sun. It is a system with 6 stars. For now, there are no known exoplanets in this system.
Sun distance
50.9 light years
Castor Aa
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White-Blue star (spectral class A1V)

Mass: 2.76 M Sun | M Jupiter
radius icon
Size: 2.4 R Sun | R Jupiter
temperature iconTemperature: 10286 K | 1.78 T Sun
Magnitude iconApparent magnitude (V): 1.58
(No known exoplanets yet)
Photometry
5
10
15
20
25
30
35
K
2.1
H
1.6
J
1.2
Grp
0.8
I
0.8
G
0.6
V
0.5
Gbp
0.5
B
0.4
U
0.3
Castor Ab
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Red dwarf (spectral class dM1e)

Mass: 0.49 M Sun | M Jupiter (estimate)
radius icon
Size: 0.53 R Sun (estimate)
(No known exoplanets yet)
Castor Ba
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White-Blue star (spectral class A2Vm)

Mass: 2.98 M Sun | M Jupiter
radius icon
Size: 3.3 R Sun | R Jupiter
temperature iconTemperature: 8842 K | 1.53 T Sun
(No known exoplanets yet)
Castor Bb
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part of star image
Red dwarf (spectral class dM1e)

Mass: 0.49 M Sun | M Jupiter (estimate)
radius icon
Size: 0.53 R Sun (estimate)
(No known exoplanets yet)
Castor Ca
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Red dwarf (spectral class M0.5VeFe-2)

Mass: 0.5992 M Sun | M Jupiter
radius icon
Size: 0.6191 R Sun | R Jupiter
temperature iconTemperature: 3820 K | 0.66 T Sun
time iconAge: 0.370 billions years | 0.08 Sun
luminosity iconLuminosity: 0.0733 L Sun
Magnitude iconApparent magnitude (V): 9.27
(No known exoplanets yet)
Photometry
5
10
15
20
25
30
35
K
2.1
H
1.6
J
1.2
Grp
0.8
I
0.8
G
0.6
V
0.5
Gbp
0.5
B
0.4
U
0.3
Castor Cb
part of star image
part of star image
Red dwarf (spectral class dM1e)

Mass: 0.5992 M Sun | M Jupiter
radius icon
Size: 0.6191 R Sun | R Jupiter
temperature iconTemperature: 3820 K | 0.66 T Sun
time iconAge: 0.37 billions years | 0.08 Sun
luminosity iconLuminosity: 0.0733 L Sun
(No known exoplanets yet)
More about Castor Aa
      Nearby star Castor Aa can be found in northern celestial hemisphere, and it is possible to see it with naked eye. The star is observable also from Northern America, Europe and Asia. 
Other designations of this star
BD+32°1581B, HR 2890, HD 60178, Alpha Geminorum, α Gem, 66 Geminorum, FK5 287, GJ 278, Gliese 278, HIP 36850, SAO 60198, BD+32°1581A, PLX 1785.00, HR 2891, HD 60179, V* YY Gem, YY Geminorum, BD+32°1582
Closest stars
Distance
(Light Years)
Star name Mass
(Solar mass)
Planets
3.7
part of star image
part of star image
G 87-32 0 M
5.8
part of star image
part of star image
WISE 0723+3403 0 M
6
part of star image
part of star image
LSPM J0714+3702 0 M
7.5
part of star image
part of star image
HD 65583 0 M
8.5
part of star image
part of star image
Ross 987 0 M
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castor