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Delta Cephei
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Star Delta Cephei

Multiple star system Delta Cephei is located 917 light years away from the Sun. It is a system with 4 stars. For now, there are no known exoplanets in this star system.
Sun distance
917 light years
galaxy map

Delta Cephei A

Yellow supergiant
Spectral class: F5Ib-G1Ib

Location

Ascension iconRight ascension: 22h 29m 10.294s
Declination iconDeclination: 58° 24' 54.749'' (northern hemisphere)
Parallax iconParallax: 3.555
Distance iconSun distance: 917.441 ly | 281.3 pc

Basic characteristic

icon weight
Mass: 450 % M Sun | 4714 M Jupiter
radius icon
Size: 4450 % R Sun | 442.8 R Jupiter
temperature iconTemperature: 6000 K | 1.04 T Sun
time iconAge: 0.1 billions years | 0.02 Sun
luminosity iconLuminosity: 2000 L Sun

Photometry

Absolute stellar magnitude in different parts of the electromagnetic spectrum from infrared (K band) to ultraviolet (U band).
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

Delta Cephei B

Blue-white star
Spectral class: B7-8

Basic characteristic

icon weight
Mass: 60 % M Sun | 628.5 M Jupiter (estimate)
radius icon
Size: 240 % R Sun | 24.1 R Jupiter (estimate)

Delta Cephei Ca

Blue Giant
Spectral class: B7–8 III–IV

Basic characteristic

Delta Cephei Cb

Yellow-White star
Spectral class: F0V

Basic characteristic

icon weight
Mass: 160 % M Sun | 1676 M Jupiter
radius icon
Size: 200 % R Sun | 20 R Jupiter (estimate)

Delta Cephei system structure

 Delta Cephei A
Delta Cephei B
Delta Cephei Ca
Delta Cephei Cb
More about Delta Cephei
       Delta Cephei can be found in northern celestial hemisphere, and it is possible to see it with naked eye. The star is easily observable from Northern America, Europe and Asia.
Other designations of this star
HD 213307, 27 Cephei, BD+57 2548, FK5 847, HD 213306, HIP 110991, HR 8571, SAO 34508, Gaia DR3 2200153454733285248
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