iconstars iconexoplanets iconstudies
do not follow here
Stellar Catalog
more icon
Nearby stars catalogue
more icon
Eta Cassiopeiae
more icon

Star Eta Cassiopeiae

Binary star Eta Cassiopeiae is located 19 light years away from the Sun. It consists of a yellow-white star and a orange star. For now, there are no known exoplanets in this star system.
Sun distance
19 light years
galaxy map

Eta Cassiopeiae A

Yellow-White star, High proper motion star
Spectral class: F9V

Location

Ascension iconRight ascension: 0h 49m 8.456s
Declination iconDeclination: 57° 48' 45.821'' (northern hemisphere)
Parallax iconParallax: 168.832
Distance iconSun distance: 19.318 ly | 5.9 pc

Basic characteristic

icon weight
Mass: 97.2 % M Sun | 1018 M Jupiter
radius icon
Size: 104 % R Sun | 10.3 R Jupiter
temperature iconTemperature: 5937 K | 1.03 T Sun
time iconAge: 5.4 billions years | 1.17 Sun
luminosity iconLuminosity: 1.2321 L Sun

Photometry

Magnitude iconApparent magnitude (V): 3.4
Magnitude iconAbsolute magnitude (V): 4.6
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

Eta Cassiopeiae B

Orange star, High proper motion star
Spectral class: K7 V

Basic characteristic

icon weight
Mass: 57 % M Sun | 597 M Jupiter
radius icon
Size: 66 % R Sun | 6.6 R Jupiter
luminosity iconLuminosity: 0.06 L Sun

Photometry

Magnitude iconApparent magnitude (V): 7.5
Magnitude iconAbsolute magnitude (V): 8.7
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

Eta Cassiopeiae system structure

 Eta Cassiopeiae A
Eta Cassiopeiae B
More about Eta Cassiopeiae
       Eta Cassiopeiae 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
Achird, Gliese 34, Wolf 24, Achird, η Cas 24 Cassiopeiae, ADS 671, BD+57°150, GCTP 155, HD 4614, HIP 3821, HR 219, LHS 123/122, LFT 74, LTT 10287, SAO 21732, Struve 60, GC 962, Gaia EDR3 425040000962559616
External sources
icon study
Closeby Habitable Exoplanet Survey (CHES). II. An Observation Strategy for the Target Stars
Scientific study, Accepted: 12. 08. 2024
simbad icon
Simbad database (* eta Cas B)
Astronomical database SIMBAD (the Set of Identifications, Measurements and Bibliography for Astronomical Data)
gaia icon
Gaia database (Gaia EDR3 425040000962497792)
Archive from the Gaia mission
Closest stars

 Gliese 892
 0.85 M☉ 5 ly

Mu Cassiopeiae
 0.74 M☉ 5.9 ly

EV Lacertae
 0.35 M☉ 7.7 ly

Kruger 60
 0.27 M☉ 8.1 ly

WISE J0313+7807
 0.03 M☉ 8.5 ly
3D map of stellar neighborhood
List of all nearby stars
Get your next news from nearby stars
This is a new project, and partly still in development. There will be soon more information and functions. We would love your support on social media.
Living Future: Nearby stars
Visit profile on X