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Stellar Catalog
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Nearby stars catalogue
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Sirius
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Star Sirius

Binary star Sirius is located 9 light years away from the Sun. It consists of a white-blue star and a white dwarf. For now, there are no known exoplanets in this star system.
Sun distance
9 light years
galaxy map

Sirius A

White-Blue star (spectral class A0mA1 Va)

Location

Ascension iconRight ascension: 6h 45m 8.792s
Declination iconDeclination: -16° 43' 15.357'' (equatorial region)
Parallax iconParallax: 374.49
Distance iconSun distance: 8.709 ly | 2.7 pc

Basic characteristic

icon weight
Mass: 206.3 % M Sun | 2161 M Jupiter
radius icon
Size: 171 % R Sun | 17 R Jupiter
temperature iconTemperature: 9882 K | 1.71 T Sun
time iconAge: 0.24 billions years | 0.05 Sun
luminosity iconLuminosity: 25.4 L Sun
(No known exoplanets yet)

Photometry

Magnitude iconApparent magnitude (V): -1.5
Magnitude iconAbsolute magnitude (V): 1.4
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
Absolute stellar magnitude in different parts of the electromagnetic spectrum from infrared (K band) to ultraviolet (U band).

Sirius B

White dwarf (spectral class DA1.9)

Basic characteristic

icon weight
Mass: 101.8 % M Sun | 1066 M Jupiter
radius icon
Size: 0.8 % R Sun | 0.1 R Jupiter
temperature iconTemperature: 26083 K | 4.51 T Sun
time iconAge: 0.228 billions years | 0.05 Sun
luminosity iconLuminosity: 0.056 L Sun
(No known exoplanets yet)

Photometry

Magnitude iconApparent magnitude (V): 8.4
Magnitude iconAbsolute magnitude (V): 11.4
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
Absolute stellar magnitude in different parts of the electromagnetic spectrum from infrared (K band) to ultraviolet (U band).
More about Sirius
      Sirius can be found in southern celestial hemisphere, and it is possible to see it with naked eye. The star is also observable from Northern America, Europe and Asia.
Other designations of this star
Dog Star, Aschere, Canicula, Al Shira, Sothis, Alhabor, Mrgavyadha, Lubdhaka, Tenrōsei, α Canis Majoris (α CMa), 9 Canis Majoris (9 CMa), HD 48915, HR 2491, BD−16°1591, GJ 244, LHS 219, ADS 5423, LTT 2638, HIP 32349, alf CMa, Gaia EDR3 2947050466531873024
External sources
simbad icon
Simbad database (* alf CMa B)
Astronomical database SIMBAD (the Set of Identifications, Measurements and Bibliography for Astronomical Data)
Closest stars

 WISE 0855-0714
 0.01 M☉ 4.7 ly

Procyon
 1.5 M☉ 5.3 ly

WISE J0722-0540
 0.02 M☉ 5.4 ly

Ross 614
 0.22 M☉ 5.5 ly

Luytens Star
 0.26 M☉ 5.7 ly
3D map of stellar neighborhood
List of all nearby stars
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