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Koenigstuhl 1
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Star Koenigstuhl 1

Binary star Koenigstuhl 1 is located 87 light years away from the Sun. It consists of a brown dwarf and a red dwarf. For now, there are no known exoplanets in this star system.
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Sun distance
87 light years
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Koenigstuhl 1 A

Red dwarf, High proper motion star
Spectral class: M6

Location +

Ascension iconRight ascension: 0h 21m 11.114s
Declination iconDeclination: -42° 45' 40.369'' (southern hemisphere)
Parallax iconParallax: 37.332
Distance iconSun distance: 87.367 ly | 26.8 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: 10.3 % M Sun
| 108 M Jupiter
+
Star mass
Mass of the star Koenigstuhl 1 A is 0.103 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: 20 % R Sun
| 1.5 R Jupiter
(estimate)
+
Star size
Radius of the star Koenigstuhl 1 A 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 icon
Temperature: 2850 K | 0.49 T Sun
+
Star temperature
Surface temperature of Koenigstuhl 1 A is 2850 K, which is 49 % 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

Koenigstuhl 1 B

Brown dwarf, , High proper motion star
Spectral class: L0.6:V

Location +

Distance iconDistance from the primary: 2083.4 AU

Basic characteristic

icon weight
Mass: 7.9 % M Sun
| 83 M Jupiter
+
Star mass
Mass of the star Koenigstuhl 1 B is 0.103 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
temperature icon
Temperature: 2250 K | 0.39 T Sun
+
Star temperature
Surface temperature of Koenigstuhl 1 B is 2250 K, which is 39 % 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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Koenigstuhl 1 system structure

 Koenigstuhl 1 A
Koenigstuhl 1 B 2083.4 AU

More about Koenigstuhl 1

       Koenigstuhl 1 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
LEHPM 494, 2MASS J00211072-4245401, WISEA J002110.98-424540.3, TIC 7150628, WDS J00212-4246, DENIS-P J0021.0-4244, 2MASS J00210589-4244433, 2MUCD 20018, USNO-B1.0 0472-00004560, WISEA J002106.15-424443.4, Gaia DR3 4992138830007506048
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External sources
simbad icon
Simbad database (Koenigstuhl 1B)
Astronomical database SIMBAD (the Set of Identifications, Measurements and Bibliography for Astronomical Data)
gaia icon
Gaia database (Gaia DR3 4992141475707360640)
Archive from the Gaia mission

Frequently Asked Questions

How far is the Koenigstuhl 1 system from the Sun?

The Koenigstuhl 1 system is 87 light years or 26.8 parsecs from the Sun.

What galaxy is the Koenigstuhl 1 star in?

The Koenigstuhl 1 is in the Milky Way galaxy just like the Sun.

How many stars are in the Koenigstuhl 1 system?

The Koenigstuhl 1 system contains 2 stars.

What type of star is the Koenigstuhl 1?

The primary in the Koenigstuhl 1 system is a Red dwarf star.

What temperature is star Koenigstuhl 1?

The primary in the Koenigstuhl 1 system has a temperature of 2850 K. Find out more about the temperature of stars in Stellar guide
Closest stars

 UCAC4 237-000303
 - 1.4 ly

Alpha Phoenicis
 1.6 M☉ 4.5 ly

LP 898-100
 - 4.7 ly

G 267-127
 - 8 ly

Kappa Phoenicis
 1.7 M☉ 8 ly
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