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Wolf 1561
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Star Wolf 1561

Binary star Wolf 1561 is located 36 light years away from the Sun. It consists of 2 red dwarf stars. For now, there are no known exoplanets in this star system.
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Sun distance
36 light years
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Wolf 1561 B

Red dwarf, flare star, High proper motion star
Spectral class: M5V

Basic characteristic

icon weight
Mass: 20 % M Sun
| 188.6 M Jupiter
 (estimate)
+
Star mass
The mass of the star Wolf 1561 B is unknown. Based on its other characteristics, it is estimated to be about 20 % 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: 20 % R Sun
| 2.2 R Jupiter
(estimate)
+
Star size
Radius of the star Wolf 1561 B 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: 3200 K | 0.55 T Sun
+
Star temperature
Surface temperature of Wolf 1561 B is 3200 K, which is 55 % 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

Wolf 1561 A

Red dwarf, flare star, , High proper motion star
Spectral class: M4V

Location +

Ascension iconRight ascension: 22h 17m 18.477s
Declination iconDeclination: -8° 48' 16.930'' (equatorial region)
Parallax iconParallax: 90.489
Distance iconSun distance: 36.044 ly | 11.1 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: 30 % M Sun
| 272.4 M Jupiter
 (estimate)
+
Star mass
The mass of the star Wolf 1561 A is unknown. Based on its other characteristics, it is estimated to be about 30 % 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: 30 % R Sun
| 2.9 R Jupiter
(estimate)
+
Star size
Radius of the star Wolf 1561 A is not known. Its estimated value based on other similar stars is about 30 % 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 Wolf 1561 A 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
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Wolf 1561 system structure

 Wolf 1561 B
Wolf 1561 A

More about Wolf 1561

Nearby star Wolf 1561 is a main sequence star that fuses hydrogen atoms into helium. 
       Wolf 1561 can be found in southern celestial hemisphere, however it is too dim to be seen with the naked eye or even a small telescope.
Other designations of this star
LHS 3788, LDS 782B, EPIC 206262223, LFT 1700, L 932-39, LP 759-82, LTT 8939, 2MASS J22171870-0848186, NLTT 53398, WISEA J221718.35-084821.4, GJ 852 A, LDS 782A, DENIS J221719.0-084811, EPIC 206262336, LFT 1699, LHS 3787, LTT 8938, 2MASS J22171899-0848122, NLTT 53397, V* FG Aqr, Zkh 329, WDS J22173-0847A, Gaia EDR3 2616132101175106816
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External sources
simbad icon
Simbad database (Wolf 1561 A)
Astronomical database SIMBAD (the Set of Identifications, Measurements and Bibliography for Astronomical Data)
gaia icon
Gaia database (Gaia EDR3 2616132101175106816)
Archive from the Gaia mission

Frequently Asked Questions

How far is the Wolf 1561 system from the Sun?

The Wolf 1561 system is 36 light years or 11.1 parsecs from the Sun.

What galaxy is the Wolf 1561 star in?

The Wolf 1561 is in the Milky Way galaxy just like the Sun.

How many stars are in the Wolf 1561 system?

The Wolf 1561 system contains 2 stars.

What type of star is the Wolf 1561?

The primary in the Wolf 1561 system is a Red dwarf star.

What temperature is the Wolf 1561?

The primary in the Wolf 1561 system has an effective temperature of K ( °C). Find out more about the temperature of stars in Stellar guide
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 - 4.9 ly

Wolf 1555
 - 5.6 ly

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Gliese 1265
 0.18 M☉ 6 ly
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