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UPM J1547-2755
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Star UPM J1547-2755

Binary star UPM J1547-2755 is located 81 light years away from the Sun. It consists of 2 red dwarf stars. For now, there are no known exoplanets in this star system.
Sun distance
81 light years
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UPM J1547-2755 A

Red dwarf, High proper motion star

Location +

Ascension iconRight ascension: 15h 47m 29.927s
Declination iconDeclination: -27° 55' 11.716'' (southern hemisphere)
Parallax iconParallax: 40.192
Distance iconSun distance: 81.149 ly | 24.9 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: 40 % M Sun
| 377.1 M Jupiter
 (estimate)
+
Star mass
The mass of the star UPM J1547-2755 A is unknown. Based on its other characteristics, it is estimated to be about 40 % 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: 40 % R Sun
| 4 R Jupiter
(estimate)
+
Star size
Radius of the star UPM J1547-2755 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 iconTemperature: 3400 K
 (estimate)
+
Star temperature
Surface temperature of UPM J1547-2755 A is estimated to be 3434 K, which is 59 % 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

UPM J1547-2755 B

Red dwarf, High proper motion star

Basic characteristic

icon weight
Mass: 20 % M Sun
| 199 M Jupiter
 (estimate)
+
Star mass
The mass of the star UPM J1547-2755 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
| 2.4 R Jupiter
(estimate)
+
Star size
Radius of the star UPM J1547-2755 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 iconTemperature: 3200 K
 (estimate)
+
Star temperature
Surface temperature of UPM J1547-2755 B 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

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 J1547-2755 system structure

 UPM J1547-2755 A
UPM J1547-2755 B

More about UPM J1547-2755

       UPM J1547-2755 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
Gaia EDR3 6233452028580863744
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External sources
simbad icon
Simbad database (UPM J1547-2755B)
Astronomical database SIMBAD (the Set of Identifications, Measurements and Bibliography for Astronomical Data)

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News from this star system

Frequently Asked Questions stardetail

How far is the UPM J1547-2755 system from the Sun?

The UPM J1547-2755 system is 81 light years or 24.9 parsecs from the Sun.

What galaxy is the UPM J1547-2755 star in?

The UPM J1547-2755 is in the Milky Way galaxy just like the Sun.

How many stars are in the UPM J1547-2755 system?

The UPM J1547-2755 system contains 2 stars.

What type of star is the UPM J1547-2755?

The primary in the UPM J1547-2755 system is a Red dwarf star.

What temperature is the UPM J1547-2755?

The primary in the UPM J1547-2755 system has an effective temperature of K ( °C). Find out more about the temperature of stars in Stellar guide
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