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11 Ursae Minoris
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Star 11 Ursae Minoris

Red giant 11 Ursae Minoris is located 411 light years away from the Sun. It is a single star of spectral class K4 III, that has 204 % of solar mass. There is at least one exoplanet in this system.
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Sun distance
411 light years
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11 Ursae Minoris

Red giant
Spectral class: K4 III

Location +

Ascension iconRight ascension: 15h 17m 5.904s
Declination iconDeclination: 71° 49' 26.199'' (northern hemisphere)
Parallax iconParallax: 7.926
Distance iconSun distance: 411.499 ly | 126.2 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: 204 % M Sun
| 2137 M Jupiter
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Star mass
Mass of the star 11 Ursae Minoris is 2.04 solar masses.

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: 2820 % R Sun
| 280.6 R Jupiter
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Star size
Radius of the star 11 Ursae Minoris is 28.20 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 icon
Temperature: 4358 K | 0.75 T Sun
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Star temperature
Surface temperature of 11 Ursae Minoris is 4358 K, which is 75 % 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
time icon
Age: 1.21 billions years | 0.26 Sun
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Star age
Star 11 Ursae Minoris is 1.21 billion years old, which is about 0.26 of the Sun's age.

The age of a star tells us how long it has been shining since it formed. Knowing a star’s age helps astronomers understand its life stage, how it has changed over time, and what will happen to it in the future... icon More about Star age in StellarGuide
luminosity icon
Luminosity: 258.8 L Sun
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Star luminosity
Luminosity is the total amount of energy a star gives off every second. Think of it as the star’s true brightness — not just how bright it looks from Earth. This is important because some stars may appear dim simply because they are far away, not because they’re actually faint... icon More about Star luminosity in StellarGuide

Photometry

Magnitude iconApparent magnitude (V): 5.2
Magnitude iconAbsolute magnitude (V): -0.4
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
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11 Ursae Minoris system structure

 11 Ursae Minoris
11 Ursae Minoris b 1.54 AU 3524.7 M⊕ 516.2 days

More about 11 Ursae Minoris

Star 11 Ursae Minoris is is much bigger than the Sun and temperature on its surface is around 4358 K (4085 °C), which is about 75 % of Sun's temperature.
       11 Ursae Minoris 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
11 Ori, 11 Orionis, V1032 Ori, BD+72°678, FK5 1140, HD 136726, HIP 74793, HR 5714, SAO 8207, PPM 8870, GCRV 8864
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Frequently Asked Questions

How far is the 11 Ursae Minoris system from the Sun?

The 11 Ursae Minoris system is 411 light years or 126.2 parsecs from the Sun.

What galaxy is the 11 Ursae Minoris star in?

The 11 Ursae Minoris is in the Milky Way galaxy just like the Sun.

How many stars are in the 11 Ursae Minoris system?

The 11 Ursae Minoris is a single star, there are no other known stars in the system.

What type of star is the 11 Ursae Minoris?

The star 11 Ursae Minoris is a Red giant star.

What temperature is star 11 Ursae Minoris?

The star 11 Ursae Minoris has an effective temperature of 4358 K. Find out more about the temperature of stars in Stellar guide
Class of stars Red giant
White dwarfs are the hot, extremely dense stellar remnants left behind by stars that originally had masses between about 0.5 and 8 times the mass of the Sun during their main sequence lifetimes. After exhausting their nuclear fuel, these stars shed their outer layers and leave behind a compact core. Although white dwarfs contain between roughly 0.2 and 1.44 solar masses, this mass is packed into a volume comparable to that of an Earth-sized planet, making them some of the densest objects in the Universe.

stellar brief logoStellar Brief

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24. 10. 2026
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A planet’s helium atmosphere streams ahead of its orbit, while infrared observations reveal the hidden rhythms of its star. New work also shows how neutron-star tilt can reshape X-ray light, traces the past of massive blue supergiants, and maps cloudy and clear zones on the hot Jupiter WASP-43 b.
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