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HD 202772
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Star HD 202772

Binary star HD 202772 is located 531 light years away from the Sun. It consists of a subgiant and a yellow star. There is at least one exoplanet in this system.
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Sun distance
531 light years
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HD 202772 A

Subgiant
Spectral class: F7IV

Location +

Ascension iconRight ascension: 21h 18m 47.910s
Declination iconDeclination: -26° 36' 58.976'' (southern hemisphere)
Parallax iconParallax: 6.137
Distance iconSun distance: 531.484 ly | 163.0 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: 170.3 % M Sun
| 1784 M Jupiter
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Star mass
Mass of the star HD 202772 A is 1.703 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: 261 % R Sun
| 26 R Jupiter
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Star size
Radius of the star HD 202772 A is 2.614 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: 6272 K | 1.09 T Sun
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Star temperature
Surface temperature of HD 202772 A is 6272 K, which is 109 % 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: 1.8 billions years | 0.39 Sun
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Star age
Star HD 202772 A is 1.8 billion years old, which is about 0.39 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

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

HD 202772 B

Yellow star

Basic characteristic

icon weight
Mass: 110 % M Sun
| 1152.3 M Jupiter
 (estimate)
+
Star mass
The mass of the star HD 202772 B is unknown. Based on its other characteristics, it is estimated to be about 110 % 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: 120 % R Sun
| 12.2 R Jupiter
(estimate)
+
Star size
Radius of the star HD 202772 B is not known. Its estimated value based on other similar stars is about 120 % 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: 6188 K | 1.07 T Sun
+
Star temperature
Surface temperature of HD 202772 B is 6188 K, which is 107 % 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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HD 202772 system structure

 HD 202772 A
HD 202772 A b 0.05 AU 323.3 M⊕ 17.3 R⊕ 3.3 days
HD 202772 B

More about HD 202772

       HD 202772 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
TOI-123, TIC 290131778, Gaia DR3 6790773586275235200
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External sources
icon study
icon study
gaia icon
Gaia database (Gaia DR3 6790773586276283648)
Archive from the Gaia mission

Frequently Asked Questions

How far is the HD 202772 system from the Sun?

The HD 202772 system is 531 light years or 163.0 parsecs from the Sun.

What galaxy is the HD 202772 star in?

The HD 202772 is in the Milky Way galaxy just like the Sun.

How many stars are in the HD 202772 system?

The HD 202772 system contains 2 stars.

What type of star is the HD 202772?

The primary in the HD 202772 system is a Subgiant star.

What temperature is star HD 202772?

The primary in the HD 202772 system has a temperature of 6272 K. Find out more about the temperature of stars in Stellar guide
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