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HIP 21543 Aa
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Star HIP 21543 Aa

Triple star system HIP 21543 Aa is located 127 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
127 light years
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HIP 21543 Aa

Yellow star
Spectral class: G0

Location +

Ascension iconRight ascension: 4h 37m 32.102s
Declination iconDeclination: 15° 8' 46.964'' (equatorial region)
Parallax iconParallax: 25.644
Distance iconSun distance: 127.188 ly | 39.0 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: 113 % M Sun
| 1184 M Jupiter
+
Star mass
Mass of the star HIP 21543 Aa is 1.13 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: 140 % R Sun
| 14.1 R Jupiter
(estimate)
+
Star size
Radius of the star HIP 21543 Aa is not known. Its estimated value based on other similar stars is about 140 % 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: 5900 K
 (estimate)
+
Star temperature
Surface temperature of HIP 21543 Aa is estimated to be 5924 K, which is 102 % 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

HIP 21543 Ab

Red dwarf

Basic characteristic

icon weight
Mass: 21 % M Sun
| 220 M Jupiter
+
Star mass
Mass of the star HIP 21543 Ab is 1.13 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 iconTemperature: 5900 K
 (estimate)
+
Star temperature
Surface temperature of HIP 21543 Ab is estimated to be 5924 K, which is 102 % 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

HIP 21543 B

Red dwarf

Basic characteristic

temperature iconTemperature: 5900 K
 (estimate)
+
Star temperature
Surface temperature of HIP 21543 B is estimated to be 5924 K, which is 102 % 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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HIP 21543 Aa system structure

 HIP 21543 Aa
HIP 21543 Ab
HIP 21543 B

More about HIP 21543 Aa

       HIP 21543 Aa can be found in northern celestial hemisphere, you cannot see it with naked eye, but you can observe this star with basic telescope. The star is easily observable from Northern America, Europe and Asia.
Other designations of this star
HD 29310, Gaia DR3 3309493720019304576
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External sources
icon study

Frequently Asked Questions

How far is the HIP 21543 Aa system from the Sun?

The HIP 21543 Aa system is 127 light years or 39.0 parsecs from the Sun.

What galaxy is the HIP 21543 Aa star in?

The HIP 21543 Aa is in the Milky Way galaxy just like the Sun.

How many stars are in the HIP 21543 Aa system?

The HIP 21543 Aa system contains 3 stars.

What type of star is the HIP 21543 Aa?

The primary in the HIP 21543 Aa system is a Yellow star star.

What temperature is the HIP 21543 Aa?

The primary in the HIP 21543 Aa system has an effective temperature of K ( °C). Find out more about the temperature of stars in Stellar guide
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icon Objects listed in the Stellar Catalog often have values that are estimates. These estimates are determined using their known characteristics, such as spectral type, brightness across different wavelengths, distance from a star, and other factors.
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