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V1054 Ophiuchi
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Star V1054 Ophiuchi

Multiple star system V1054 Ophiuchi is located 21 light years away from the Sun. It is a system with 5 stars. For now, there are no known exoplanets in this star system.
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Nearby stars catalogue
Sun distance
21 light years
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V1054 Ophiuchi A

Red dwarf, flare star, Spectroscopic binary
Spectral class: M3V

Location +

Ascension iconRight ascension: 16h 55m 32.000s
Declination iconDeclination: -8° 23' 40.753'' (equatorial region)
Parallax iconParallax: 161.410
Distance iconSun distance: 21.050 ly | 6.5 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: 41.6 % M Sun
| 435 M Jupiter
+
Star mass
Mass of the star V1054 Ophiuchi A is 0.4155 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: 50 % R Sun
| 4.8 R Jupiter
(estimate)
+
Star size
Radius of the star V1054 Ophiuchi A is not known. Its estimated value based on other similar stars is about 50 % 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: 3438 K | 0.6 T Sun
+
Star temperature
Surface temperature of V1054 Ophiuchi A is 3438 K, which is 60 % 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

Magnitude iconApparent magnitude (V): 9
Magnitude iconAbsolute magnitude (V): 10
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

Gliese 643

Red dwarf, High proper motion star
Spectral class: M3.5 V

Basic characteristic

icon weight
Mass: 19 % M Sun
| 199 M Jupiter
+
Star mass
Mass of the star Gliese 643 is 0.4155 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: 20 % R Sun
| 2.2 R Jupiter
(estimate)
+
Star size
Radius of the star Gliese 643 is not known. Its estimated value based on other similar stars is about 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: 3345 K | 0.58 T Sun
+
Star temperature
Surface temperature of Gliese 643 is 3345 K, which is 58 % 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

Magnitude iconApparent magnitude (V): 11.8
Magnitude iconAbsolute magnitude (V): 12.7
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

V1054 Ophiuchi Ba

Red dwarf, , High proper motion star
Spectral class: M4 Ve

Basic characteristic

icon weight
Mass: 34.7 % M Sun
| 363 M Jupiter
+
Star mass
Mass of the star V1054 Ophiuchi Ba is 0.19 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: 40 % R Sun
| 3.9 R Jupiter
(estimate)
+
Star size
Radius of the star V1054 Ophiuchi Ba is not known. Its estimated value based on other similar stars is about 40 % 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: 3300 K
 (estimate)
+
Star temperature
Surface temperature of V1054 Ophiuchi Ba is estimated to be 3300 K, which is 57 % 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

V1054 Ophiuchi Bb

Red dwarf, , , High proper motion star
Spectral class: M4 Ve

Basic characteristic

icon weight
Mass: 31.4 % M Sun
| 329 M Jupiter
+
Star mass
Mass of the star V1054 Ophiuchi Bb is 0.3466 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: 40 % R Sun
| 3.5 R Jupiter
(estimate)
+
Star size
Radius of the star V1054 Ophiuchi Bb is not known. Its estimated value based on other similar stars is about 40 % 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: 3300 K
 (estimate)
+
Star temperature
Surface temperature of V1054 Ophiuchi Bb is estimated to be 3300 K, which is 57 % 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

V1054 Ophiuchi C

Red dwarf, flare star, , , , High proper motion star
Spectral class: M7.0 V

Basic characteristic

icon weight
Mass: 8 % M Sun
| 84 M Jupiter
+
Star mass
Mass of the star V1054 Ophiuchi C is 0.3143 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: 10 % R Sun
| 1.1 R Jupiter
(estimate)
+
Star size
Radius of the star V1054 Ophiuchi C is not known. Its estimated value based on other similar stars is about 10 % 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: 2830 K | 0.49 T Sun
+
Star temperature
Surface temperature of V1054 Ophiuchi C is 2830 K, which is 49 % 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

Magnitude iconApparent magnitude (V): 16.9
Magnitude iconAbsolute magnitude (V): 17.8
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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V1054 Ophiuchi system structure

 V1054 Ophiuchi A
Gliese 643
V1054 Ophiuchi Ba
V1054 Ophiuchi Bb
V1054 Ophiuchi C

More about V1054 Ophiuchi

       V1054 Ophiuchi can be found in southern celestial hemisphere, you cannot see it with naked eye, but you can observe this star with basic telescope. The star is also observable from Northern America, Europe and Asia.
Other designations of this star
VB 8, Wolf 629, LHS 427, LDS 573C, HIC 82809, HIP 82809, PLX 3844, TIC 181589885, LTT 6750, LFT 1311, V1054 Oph, Gliese 644, GJ 644, Wolf 630, VanBiesbroeck 8, HD 152751, HIP 82817, SAO 141439
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External sources
simbad icon
Simbad database (VB 8)
Astronomical database SIMBAD (the Set of Identifications, Measurements and Bibliography for Astronomical Data)
gaia icon
Gaia database (Gaia EDR3 4339417394313320192)
Archive from the Gaia mission

Frequently Asked Questions

How far is the V1054 Ophiuchi system from the Sun?

The V1054 Ophiuchi system is 21 light years or 6.5 parsecs from the Sun.

What galaxy is the V1054 Ophiuchi star in?

The V1054 Ophiuchi is in the Milky Way galaxy just like the Sun.

How many stars are in the V1054 Ophiuchi system?

The V1054 Ophiuchi system contains 5 stars.

What type of star is the V1054 Ophiuchi?

The primary in the V1054 Ophiuchi system is a Red dwarf star.

What temperature is star V1054 Ophiuchi?

The primary in the V1054 Ophiuchi system has a temperature of 3438 K. Find out more about the temperature of stars in Stellar guide
Closest stars

 Gliese 673
 0.65 M☉ 6.5 ly

36 Ophiuchi
 0.85 M☉ 6.9 ly

Gliese 1207
 0 M☉ 7.4 ly

Wolf 1061
 0.25 M☉ 7.5 ly

70 Ophiuchi
 0.9 M☉ 8.1 ly
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