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UPM J1040-3551
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Star UPM J1040-3551

Triple star system UPM J1040-3551 is located 82 light years away from the Sun. It is a system with 3 stars. For now, there are no known exoplanets in this star system.
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Sun distance
82 light years
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UPM J1040-3551 A

Red dwarf, High proper motion star
Spectral class: M4

Location +

Ascension iconRight ascension: 10h 40m 55.334s
Declination iconDeclination: -35° 51' 30.978'' (southern hemisphere)
Parallax iconParallax: 39.552
Distance iconSun distance: 82.463 ly | 25.3 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: 23.5 % M Sun
| 246 M Jupiter
+
Star mass
Mass of the star UPM J1040-3551 A is 0.235 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
| 3.8 R Jupiter
(estimate)
+
Star size
Radius of the star UPM J1040-3551 A 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 icon
Temperature: 3200 K | 0.55 T Sun
+
Star temperature
Surface temperature of UPM J1040-3551 A 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

Magnitude iconApparent magnitude (V): 14.6
Magnitude iconAbsolute magnitude (V): 12.6
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

UPM J1040-3551 Ba

Brown dwarf, , High proper motion star
Spectral class: T7

Basic characteristic

icon weight
Mass: 2 % M Sun
| 21 M Jupiter
+
Star mass
Mass of the star UPM J1040-3551 Ba is 0.235 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
| 0.7 R Jupiter
(estimate)
+
Star size
Radius of the star UPM J1040-3551 Ba 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: 900 K
 (estimate)
+
Star temperature
Surface temperature of UPM J1040-3551 Ba is estimated to be 880 K, which is 16 % 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
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

UPM J1040-3551 Bb

Brown dwarf, , , High proper motion star
Spectral class: T8

Basic characteristic

icon weight
Mass: 4 % M Sun
| 41.9 M Jupiter
 (estimate)
+
Star mass
The estimated mass of the star UPM J1040-3551 Bb is about 4 % of the Sun's mass, or approximately 41.9 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
| 0.9 R Jupiter
(estimate)
+
Star size
Radius of the star UPM J1040-3551 Bb 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: 600 K
 (estimate)
+
Star temperature
Surface temperature of UPM J1040-3551 Bb is estimated to be 645 K, which is 10 % 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
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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UPM J1040-3551 system structure

Stars B and C form a pair, which orbits the primary star A.
 UPM J1040-3551 A
UPM J1040-3551 Ba
UPM J1040-3551 Bb

More about UPM J1040-3551

       UPM J1040-3551 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
CWISE J104055.33−355130.9, Gaia EDR3 5443160355149610368
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External sources
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Frequently Asked Questions

How far is the UPM J1040-3551 system from the Sun?

The UPM J1040-3551 system is 82 light years or 25.3 parsecs from the Sun.

What galaxy is the UPM J1040-3551 star in?

The UPM J1040-3551 is in the Milky Way galaxy just like the Sun.

How many stars are in the UPM J1040-3551 system?

The UPM J1040-3551 system contains 3 stars.

What type of star is the UPM J1040-3551?

The primary in the UPM J1040-3551 system is a Red dwarf star.

What temperature is star UPM J1040-3551?

The primary in the UPM J1040-3551 system has a temperature of 3200 K. Find out more about the temperature of stars in Stellar guide
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