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Zeta1 Cancri
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Star Zeta1 Cancri

Binary star Zeta1 Cancri is located 80 light years away from the Sun. It consists of 2 yellow-white star stars. For now, there are no known exoplanets in this star system.
Sun distance
80 light years
galaxy map

Zeta1 Cancri A

Yellow-White star, High proper motion star

Location +

Ascension iconRight ascension: 8h 12m 12.855s
Declination iconDeclination: 17° 38' 49.134'' (equatorial region)
Parallax iconParallax: 40.888
Distance iconSun distance: 79.768 ly | 24.5 pc
Star position
The position of a star tells us where it appears in the sky, similar to how we use coordinates like latitude and longitude on Earth. In astronomy, the three main coordinates are right ascension, declination and distance. .. icon More about Star position in StellarGuide

Basic characteristic

icon weight
Mass: 120 % M Sun
| 1299 M Jupiter
 (estimate)
+
Star mass
The mass of the star Zeta1 Cancri A is unknown. Based on its other characteristics, it is estimated to be about 120 % of the Sun’s mass.

The mass of a star is the total amount of matter it contains. It is one of the most important properties of a star, as it determines almost everything about how the star lives, changes, and dies. In astronomy, star mass is usually measured in solar masses (M☉) — where 1 solar mass is equal to the mass of our Sun... icon More about Star mass in StellarGuide
radius icon
Size: 150 % R Sun
| 14.5 R Jupiter
(estimate)
+
Star size
Radius of the star Zeta1 Cancri A is not known. Its estimated value based on other similar stars is about 150 % solar radii.

The size of a star refers to its radius — the distance from its center to its surface. Star size is usually measured in solar radii (R☉), where 1 solar radius equals approximately 696,000 kilometers. Depending on their type and life stage, stars can be much smaller or larger than the Sun... icon More about Star size in StellarGuide

Photometry

Magnitude iconApparent magnitude (V): 5.3
Magnitude iconAbsolute magnitude (V): 3.4
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

Zeta1 Cancri B

Yellow-White star, High proper motion star

Basic characteristic

icon weight
Mass: 120 % M Sun
| 1278 M Jupiter
 (estimate)
+
Star mass
The mass of the star Zeta1 Cancri B is unknown. Based on its other characteristics, it is estimated to be about 120 % of the Sun’s mass.

The mass of a star is the total amount of matter it contains. It is one of the most important properties of a star, as it determines almost everything about how the star lives, changes, and dies. In astronomy, star mass is usually measured in solar masses (M☉) — where 1 solar mass is equal to the mass of our Sun... icon More about Star mass in StellarGuide
radius icon
Size: 140 % R Sun
| 13.8 R Jupiter
(estimate)
+
Star size
Radius of the star Zeta1 Cancri B is not known. Its estimated value based on other similar stars is about 140 % solar radii.

The size of a star refers to its radius — the distance from its center to its surface. Star size is usually measured in solar radii (R☉), where 1 solar radius equals approximately 696,000 kilometers. Depending on their type and life stage, stars can be much smaller or larger than the Sun... icon More about Star size in StellarGuide

Photometry

Magnitude iconApparent magnitude (V): 6
Magnitude iconAbsolute magnitude (V): 4
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

Zeta1 Cancri system structure

 Zeta1 Cancri A
Zeta1 Cancri B
More about Zeta1 Cancri
       Zeta1 Cancri 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
zet01 Cnc, Tegmine , Gaia EDR3 657244586015485440
External sources
simbad icon
Simbad database (* zet01 Cnc B)
Astronomical database SIMBAD (the Set of Identifications, Measurements and Bibliography for Astronomical Data)
Closest stars

 Zeta2 Cancri
 1.2 M☉ 0.5 ly

2MASSI J0810586+142039
 - 5 ly

PM J07585+1543
 - 5.8 ly

Mu2 Cancri
 1.2 M☉ 6 ly

HD 65430
 - 6.2 ly
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