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89 Herculis
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Star 89 Herculis

Binary star 89 Herculis is located 4287 light years away from the Sun. It consists of a yellow supergiant and a . For now, there are no known exoplanets in this star system.
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Sun distance
4287 light years
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89 Herculis A

Yellow supergiant
Spectral class: F2Ibe

Location +

Ascension iconRight ascension: 17h 55m 25.197s
Declination iconDeclination: 26° 3' 0.053'' (northern hemisphere)
Parallax iconParallax: 0.761
Distance iconSun distance: 4,286.942 ly | 1,314.4 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: 100 % M Sun
| 1048 M Jupiter
+
Star mass
Mass of the star 89 Herculis A is 1 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: 7100 % R Sun
| 706.5 R Jupiter
+
Star size
Radius of the star 89 Herculis A is 71 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: 6550 K | 1.13 T Sun
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Star temperature
Surface temperature of 89 Herculis A is 6550 K, which is 113 % 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
luminosity icon
Luminosity: 8350 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

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

89 Herculis B

Unknown star type

Basic characteristic

temperature iconTemperature: 6600 K
 (estimate)
+
Star temperature
Surface temperature of 89 Herculis B is estimated to be 6550 K, which is 114 % 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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89 Herculis system structure

 89 Herculis A
89 Herculis B

More about 89 Herculis

       89 Herculis 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
89 Her, V441 Herculis, AAVSO 1751+26, BD+26°3120, FK5 1468, GC 24382, HD 163506, HIP 87747, HR 6685, SAO 85545, Gaia DR3 4582795323914832000
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Frequently Asked Questions

How far is the 89 Herculis system from the Sun?

The 89 Herculis system is 4287 light years or 1,314.4 parsecs from the Sun.

What galaxy is the 89 Herculis star in?

The 89 Herculis is in the Milky Way galaxy just like the Sun.

How many stars are in the 89 Herculis system?

The 89 Herculis system contains 2 stars.

What type of star is the 89 Herculis?

The primary in the 89 Herculis system is a Yellow supergiant star.

What temperature is star 89 Herculis?

The primary in the 89 Herculis system has a temperature of 6550 K. Find out more about the temperature of stars in Stellar guide
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