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Star 23 Librae

Subgiant 23 Librae is located 85 light years away from the Sun. It is a single star of spectral class G6IV-V C, that has 107 % of solar mass. There are multiple known exoplanets in this system.
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Sun distance
85 light years

23 Librae

Subgiant, High proper motion star
Spectral class: G6IV-V C

Location +

Ascension iconRight ascension: 15h 13m 28.199s
Declination iconDeclination: -25° 18' 34.857'' (southern hemisphere)
Parallax iconParallax: 38.195
Distance iconSun distance: 85.393 ly | 26.2 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: 107 % M Sun
| 1121 M Jupiter
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Star mass
Mass of the star 23 Librae is 1.07 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: 125 % R Sun
| 12.4 R Jupiter
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Star size
Radius of the star 23 Librae is 1.25 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: 5585 K | 0.97 T Sun
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Star temperature
Surface temperature of 23 Librae is 5585 K, which is 97 % 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
time icon
Age: 9 billions years | 1.96 Sun
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Star age
Star 23 Librae is 9 billion years old, which is about 1.96 of the Sun's age.

The age of a star tells us how long it has been shining since it formed. Knowing a star’s age helps astronomers understand its life stage, how it has changed over time, and what will happen to it in the future... icon More about Star age in StellarGuide

Photometry

Magnitude iconApparent magnitude (V): 6.5
Magnitude iconAbsolute magnitude (V): 4.4
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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23 Librae system structure

23 Librae
23 Librae b 0.81 AU 505.5 M⊕ 258.2 days
23 Librae c 5.8 AU 260.7 M⊕ 5000 days

More about 23 Librae

Nearby star 23 Librae is is approximately 25 % bigger than the Sun and temperature on its surface is around 5585 K (5312 °C), which is about 97 % of Sun's temperature.
       23 Librae can be found in southern celestial hemisphere, you cannot see it with naked eye, but you can observe this star with basic telescope. The star is also observable from Northern America, Europe and Asia. 
Other designations of this star
CD−24° 11928, Gliese 579.4, GJ 579.4, HD 134987, HIC 74500, HIP 74500, HR 5657, SAO 183275, Gaia DR3 6226694571859532800
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External sources
simbad icon
Simbad database (* 23 Lib)
Astronomical database SIMBAD (the Set of Identifications, Measurements and Bibliography for Astronomical Data)
gaia icon
Gaia database (Gaia DR3 6226694571859532800)
Archive from the Gaia mission

Frequently Asked Questions

How far is the 23 Librae system from the Sun?

The 23 Librae system is 85 light years or 26.2 parsecs from the Sun.

What galaxy is the 23 Librae star in?

The 23 Librae is in the Milky Way galaxy just like the Sun.

How many stars are in the 23 Librae system?

The 23 Librae is a single star, there are no other known stars in the system.

What type of star is the 23 Librae?

The star 23 Librae is a Subgiant star.

What temperature is star 23 Librae?

The star 23 Librae has an effective temperature of 5585 K. Find out more about the temperature of stars in Stellar guide
Class of stars Subgiant
A subgiant is a term used to describe a luminous star that is typically running out of hydrogen for nuclear fusion and is thus departing from the main sequence. These stars are classified as Yerkes luminosity class IV.
Closest stars

Gaia DR2 6227687980608264064
- 3.6 ly

HD 136894
- 5.4 ly

TOI-836
0.68 M☉ 6.4 ly

LP 859-64
- 6.7 ly

HD 131719
- 7.5 ly
3D map of stellar neighborhood
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