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Eta Ursae Minoris
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Star Eta Ursae Minoris

Yellow-White star Eta Ursae Minoris is located 96 light years away from the Sun. It is a single star of spectral class F5V, that has typically about 130 % of solar mass. For now, there are no known exoplanets in this star system.
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Sun distance
96 light years
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Eta Ursae Minoris

Yellow-White star, High proper motion star
Spectral class: F5V

Location +

Ascension iconRight ascension: 16h 17m 30.274s
Declination iconDeclination: 75° 45' 19.239'' (northern hemisphere)
Parallax iconParallax: 33.870
Distance iconSun distance: 96.296 ly | 29.5 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: 130 % M Sun
| 1351.4 M Jupiter
 (estimate)
+
Star mass
The mass of the star Eta Ursae Minoris is unknown. Based on its other characteristics, it is estimated to be about 130 % 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
| 14.8 R Jupiter
(estimate)
+
Star size
Radius of the star Eta Ursae Minoris 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
temperature iconTemperature: 6500 K
 (estimate)
+
Star temperature
Surface temperature of Eta Ursae Minoris is estimated to be 6537 K, which is 112 % of the temperature on the surface of the Sun.

The temperature of a star refers to the temperature at its surface, also called the photosphere. It is measured in kelvins (K), the standard unit for temperature in astronomy. A star’s temperature tells us a lot about its physical properties and where it stands in its evolutionary stage... icon More about Star temperature in StellarGuide

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
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Eta Ursae Minoris system structure

 Eta Ursae Minoris

More about Eta Ursae Minoris

Nearby star Eta Ursae Minoris is a main sequence star that fuses hydrogen atoms into helium. 
       Eta Ursae Minoris can be found in northern celestial hemisphere.
Other designations of this star
* eta UMi, η UMi, 21 Ursae Minoris, BD+76°596, FK5 612, GC 21999, HD 148048, HIP 79822, HR 6116, SAO 8470, CCDM 16176+7545
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External sources
simbad icon
Simbad database (* eta UMi)
Astronomical database SIMBAD (the Set of Identifications, Measurements and Bibliography for Astronomical Data)

Frequently Asked Questions

How far is the Eta Ursae Minoris system from the Sun?

The Eta Ursae Minoris system is 96 light years or 29.5 parsecs from the Sun.

What galaxy is the Eta Ursae Minoris star in?

The Eta Ursae Minoris is in the Milky Way galaxy just like the Sun.

How many stars are in the Eta Ursae Minoris system?

The Eta Ursae Minoris is a single star, there are no other known stars in the system.

What type of star is the Eta Ursae Minoris?

The star Eta Ursae Minoris is a Yellow-White star star.

What temperature is the Eta Ursae Minoris?

The primary in the Eta Ursae Minoris system has an effective temperature of K ( °C). Find out more about the temperature of stars in Stellar guide
Closest stars

 LP 23-71
 - 0.6 ly

HD 135363
 - 7.1 ly

HD 150706
 1 M☉ 8 ly

BD+75 551
 - 8.3 ly

HD 144061
 - 8.5 ly
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Estimated values
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