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2MASS J0041-5621
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Star 2MASS J0041-5621

Binary star 2MASS J0041-5621 is located 113 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
113 light years
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2MASS J0041-5621 A

Red dwarf, Low-mass star
Spectral class: M6.5

Location +

Ascension iconRight ascension: 0h 41m 35.400s
Declination iconDeclination: -56° 21' 13.000'' (southern hemisphere)
Parallax iconParallax: 28.800
Distance iconSun distance: 113.220 ly | 34.7 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: 2.6 % M Sun
| 27 M Jupiter
+
Star mass
Mass of the star 2MASS J0041-5621 A is 0.026 solar masses (or 27.2 Jupiter 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: 0 % R Sun
| 0.3 R Jupiter
(estimate)
+
Star size
Radius of the star 2MASS J0041-5621 A is not known. Its estimated value based on other similar stars is about 0 % 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: 2800 K
 (estimate)
+
Star temperature
Surface temperature of 2MASS J0041-5621 A is estimated to be 2835 K, which is 48 % 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 iconAbsolute magnitude (V): -2.7
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

2MASS J0041-5621 B

Red dwarf, , Low-mass star
Spectral class: M9

Location +

Distance iconDistance from the primary: 8.9 AU

Basic characteristic

icon weight
Mass: 1.4 % M Sun
| 15 M Jupiter
+
Star mass
Mass of the star 2MASS J0041-5621 B is 0.026 solar masses (or 27.2 Jupiter 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: 0 % R Sun
| 0.3 R Jupiter
(estimate)
+
Star size
Radius of the star 2MASS J0041-5621 B is not known. Its estimated value based on other similar stars is about 0 % 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: 2700 K
 (estimate)
+
Star temperature
Surface temperature of 2MASS J0041-5621 B is estimated to be 2663 K, which is 47 % 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 iconAbsolute magnitude (V): -2.7
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
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2MASS J0041-5621 system structure

 2MASS J0041-5621 A
2MASS J0041-5621 B 8.9 AU

More about 2MASS J0041-5621

       2MASS J0041-5621 can be found in southern celestial hemisphere.
Other designations of this star
DENIS J004135.3-562112, 2MASS J00413538-5621127
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Frequently Asked Questions

How far is the 2MASS J0041-5621 system from the Sun?

The 2MASS J0041-5621 system is 113 light years or 34.7 parsecs from the Sun.

What galaxy is the 2MASS J0041-5621 star in?

The 2MASS J0041-5621 is in the Milky Way galaxy just like the Sun.

How many stars are in the 2MASS J0041-5621 system?

The 2MASS J0041-5621 system contains 2 stars.

What type of star is the 2MASS J0041-5621?

The primary in the 2MASS J0041-5621 system is a Red dwarf star.

What temperature is the 2MASS J0041-5621?

The primary in the 2MASS J0041-5621 system has an effective temperature of K ( °C). Find out more about the temperature of stars in Stellar guide

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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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