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Gamma Ophiuchi
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Star Gamma Ophiuchi

White-Blue star Gamma Ophiuchi is located 97 light years away from the Sun. It is a single star of spectral class A0V, that has 290 % of solar mass. For now, there are no known exoplanets in this star system.
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Sun distance
97 light years
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Gamma Ophiuchi

White-Blue star, High proper motion star
Spectral class: A0V

Location +

Ascension iconRight ascension: 17h 47m 53.544s
Declination iconDeclination: 2° 42' 25.013'' (equatorial region)
Parallax iconParallax: 33.617
Distance iconSun distance: 97.020 ly | 29.7 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: 290 % M Sun
| 3038 M Jupiter
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Star mass
Mass of the star Gamma Ophiuchi is 2.9 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: 201 % R Sun
| 20 R Jupiter
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Star size
Radius of the star Gamma Ophiuchi is 2.01 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: 9070 K | 1.57 T Sun
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Star temperature
Surface temperature of Gamma Ophiuchi is 9070 K, which is 157 % 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: 0.184 billions years | 0.04 Sun
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Star age
Star Gamma Ophiuchi is 0.184 billion years old, which is about 0.04 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: 24.5 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): 3.8
Magnitude iconAbsolute magnitude (V): 1.4
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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Gamma Ophiuchi system structure

 Gamma Ophiuchi

More about Gamma Ophiuchi

Nearby star Gamma Ophiuchi is a main sequence star that fuses hydrogen atoms into helium. It is is approximately 2 times bigger than the Sun and temperature on its surface is around 9070 K (8797 °C), which is about 157 % of Sun's temperature.
       Gamma Ophiuchi 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
Bake-eo, Bake Eo, γ Oph, 62 Ophiuchi, BD 02 3403, FK5 668, GC 24162, HD 161868, HIP 87108, HR 6629, SAO 122754, Bake-eo, Bake Eo, γ Oph, 62 Ophiuchi, BD 02 3403, FK5 668, GC 24162, HD 161868, HIP 87108, HR 6629, SAO 122754, Gaia DR3 4472097420946809600
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External sources
icon study
simbad icon
Simbad database (* gam Oph)
Astronomical database SIMBAD (the Set of Identifications, Measurements and Bibliography for Astronomical Data)
gaia icon
Gaia database (Gaia DR3 4472097420946809600)
Archive from the Gaia mission

Frequently Asked Questions

How far is the Gamma Ophiuchi system from the Sun?

The Gamma Ophiuchi system is 97 light years or 29.7 parsecs from the Sun.

What galaxy is the Gamma Ophiuchi star in?

The Gamma Ophiuchi is in the Milky Way galaxy just like the Sun.

How many stars are in the Gamma Ophiuchi system?

The Gamma Ophiuchi is a single star, there are no other known stars in the system.

What type of star is the Gamma Ophiuchi?

The star Gamma Ophiuchi is a White-Blue star star.

What temperature is star Gamma Ophiuchi?

The star Gamma Ophiuchi has an effective temperature of 9070 K. Find out more about the temperature of stars in Stellar guide
Closest stars

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G 20-1
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