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LDS 390
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Star LDS 390

Binary star LDS 390 is located 42 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
42 light years
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LDS 390A

Red dwarf, High proper motion star
Spectral class: dM3.0

Location +

Ascension iconRight ascension: 12h 11m 11.520s
Declination iconDeclination: -19° 57' 41.019'' (equatorial region)
Parallax iconParallax: 78.481
Distance iconSun distance: 41.558 ly | 12.7 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: 35 % M Sun
| 367 M Jupiter
+
Star mass
Mass of the star LDS 390A is 0.35 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
| 4 R Jupiter
(estimate)
+
Star size
Radius of the star LDS 390A 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: 3471 K | 0.6 T Sun
+
Star temperature
Surface temperature of LDS 390A is 3471 K, which is 60 % 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): 11.7
Magnitude iconAbsolute magnitude (V): 11.2
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

LDS 390B

Red dwarf, High proper motion star
Spectral class: M2.5V

Basic characteristic

icon weight
Mass: 40 % M Sun
| 429.5 M Jupiter
 (estimate)
+
Star mass
The mass of the star LDS 390B 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
| 4.3 R Jupiter
(estimate)
+
Star size
Radius of the star LDS 390B 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: 3344 K | 0.58 T Sun
+
Star temperature
Surface temperature of LDS 390B is 3344 K, which is 58 % 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): 12.6
Magnitude iconAbsolute magnitude (V): 12.1
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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LDS 390 system structure

 LDS 390A
LDS 390B

More about LDS 390

       LDS 390 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
GJ 3708, Gliese 3708, L 758-108, L 758-107, GJ 3709, GJ 3708B, Gliese 3709, LP 794-31, 2MASS J12111697-1958213, NLTT 29879, TIC 422407583, WDS J12113-1958B, Gaia EDR3 3517841209157902720
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External sources
simbad icon
Simbad database (L 758-107)
Astronomical database SIMBAD (the Set of Identifications, Measurements and Bibliography for Astronomical Data)
gaia icon
Gaia database (Gaia EDR3 3517841140438425600)
Archive from the Gaia mission

Frequently Asked Questions

How far is the LDS 390 system from the Sun?

The LDS 390 system is 42 light years or 12.7 parsecs from the Sun.

What galaxy is the LDS 390 star in?

The LDS 390 is in the Milky Way galaxy just like the Sun.

How many stars are in the LDS 390 system?

The LDS 390 system contains 2 stars.

What type of star is the LDS 390?

The primary in the LDS 390 system is a Red dwarf star.

What temperature is star LDS 390?

The primary in the LDS 390 system has a temperature of 3471 K. Find out more about the temperature of stars in Stellar guide
Closest stars

 Gliese 3707
 - 3.8 ly

LP 795-15
 - 3.9 ly

2MASS J1225-2739
 - 6.5 ly

LP 851-346
 - 6.5 ly

1RXS J121408.0-234516
 - 6.9 ly
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