★ Star Castor Aa | Nearby stars catalogue

Castor Aa

White-Blue star (spectral class A1V)

Mass: 2.76 M Sun

Size: 2.4 R Sun

Temperature: 10286 K | 1.78 T Sun

Apparent magnitude (V): 1.58

(No known exoplanets yet)

Photometry

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

Red dwarf (spectral class dM1e)

Mass: 0.49 M Sun (estimate)

Size: 0.53 R Sun (estimate)

(No known exoplanets yet)

Castor Ba

White-Blue star (spectral class A2Vm)

Mass: 2.98 M Sun

Size: 3.3 R Sun

Temperature: 8842 K | 1.53 T Sun

(No known exoplanets yet)

Castor Bb

Red dwarf (spectral class dM1e)

Mass: 0.49 M Sun (estimate)

Size: 0.53 R Sun (estimate)

(No known exoplanets yet)

Castor Ca

Red dwarf (spectral class M0.5VeFe-2)

Mass: 0.5992 M Sun

Size: 0.6191 R Sun

Temperature: 3820 K | 0.66 T Sun

Age: 0.370 billions years | 0.08 Sun

Luminosity: 0.0733 L Sun

Apparent magnitude (V): 9.27

(No known exoplanets yet)

Photometry

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

Red dwarf (spectral class dM1e)

Mass: 0.5992 M Sun

Size: 0.6191 R Sun

Temperature: 3820 K | 0.66 T Sun

Age: 0.37 billions years | 0.08 Sun

Luminosity: 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

Distance (Light Years)		Mass (Solar mass)


3.7	G 87-32	0 M_☉

5.8	WISE 0723+3403	0 M_☉

6	LSPM J0714+3702	0 M_☉

7.5	HD 65583	0 M_☉

8.5	Ross 987	0 M_☉