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PM J11240+3808
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Star PM J11240+3808

Binary star PM J11240+3808 is located 60 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
60 light years
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PM J11240+3808

Red dwarf, High proper motion star
Spectral class: M4.5V

Location +

Ascension iconRight ascension: 11h 24m 4.527s
Declination iconDeclination: 38° 8' 10.659'' (northern hemisphere)
Parallax iconParallax: 54.187
Distance iconSun distance: 60.191 ly | 18.5 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: 20 % M Sun
| 199 M Jupiter
 (estimate)
+
Star mass
The mass of the star PM J11240+3808 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
| 2.4 R Jupiter
(estimate)
+
Star size
Radius of the star PM J11240+3808 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 iconTemperature: 3200 K
 (estimate)
+
Star temperature
Surface temperature of PM J11240+3808 is estimated to be 3221 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

Magnitude iconApparent magnitude (V): 14.5
Magnitude iconAbsolute magnitude (V): 13.2
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

2MUCD 10984

Red dwarf, Low-mass star
Spectral class: M8.5V

Basic characteristic

icon weight
Mass: 8 % M Sun
| 83.8 M Jupiter
 (estimate)
+
Star mass
The estimated mass of the star 2MUCD 10984 is about 8 % of the Sun's mass, or approximately 83.8 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: 10 % R Sun
| 1.1 R Jupiter
(estimate)
+
Star size
Radius of the star 2MUCD 10984 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 iconTemperature: 2400 K
 (estimate)
+
Star temperature
Surface temperature of 2MUCD 10984 is estimated to be 2400 K, which is 42 % 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): -1.3
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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PM J11240+3808 system structure

 PM J11240+3808
2MUCD 10984

More about PM J11240+3808

       PM J11240+3808 can be found in northern celestial hemisphere, however it is too dim to be seen with the naked eye or even a small telescope.
Other designations of this star
Gaia DR3 764072689093638528
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External sources
simbad icon
Simbad database (2MUCD 10984)
Astronomical database SIMBAD (the Set of Identifications, Measurements and Bibliography for Astronomical Data)
gaia icon
Gaia database (Gaia DR3 764072693389251456)
Archive from the Gaia mission

Frequently Asked Questions

How far is the PM J11240+3808 system from the Sun?

The PM J11240+3808 system is 60 light years or 18.5 parsecs from the Sun.

What galaxy is the PM J11240+3808 star in?

The PM J11240+3808 is in the Milky Way galaxy just like the Sun.

How many stars are in the PM J11240+3808 system?

The PM J11240+3808 system contains 2 stars.

What type of star is the PM J11240+3808?

The primary in the PM J11240+3808 system is a Red dwarf star.

What temperature is the PM J11240+3808?

The primary in the PM J11240+3808 system has an effective temperature of K ( °C). Find out more about the temperature of stars in Stellar guide
Closest stars

 LP 264-45
 - 2.1 ly

LP 214-42
 - 4.5 ly

MV Ursae Majoris
 - 6.2 ly

G 122-2
 - 7.9 ly

LP 263-71
 - 9.8 ly
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