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HIP 73990
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Star HIP 73990

Binary star HIP 73990 is located 359 light years away from the Sun. It consists of a white-blue star and a red dwarf. There are multiple known exoplanets in this system.
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Sun distance
359 light years
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HIP 73990 A

White-Blue star
Spectral class: A9V

Location +

Ascension iconRight ascension: 15h 7m 14.905s
Declination iconDeclination: -29° 30' 16.600'' (southern hemisphere)
Parallax iconParallax: 9.082
Distance iconSun distance: 359.141 ly | 110.1 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: 172 % M Sun
| 1802 M Jupiter
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Star mass
Mass of the star HIP 73990 A is 1.72 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: 150 % R Sun
| 15.3 R Jupiter
(estimate)
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Star size
Radius of the star HIP 73990 A is not known. Its estimated value based on other similar stars is about 150 % 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: 7450.0 K | 1.29 T Sun
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Star temperature
Surface temperature of HIP 73990 A is 7450.0 K, which is 129 % 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: 0.015 billions years | 0 Sun
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Star age
Star HIP 73990 A is 0.015 billion years old, which is about 0 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

HIP 73990 B

Red dwarf

Location +

Distance iconDistance from the primary: 5234 AU

Basic characteristic

temperature iconTemperature: 7400 K
 (estimate)
+
Star temperature
Surface temperature of HIP 73990 B is estimated to be 7381 K, which is 128 % 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 73990 system structure

 HIP 73990 A
HIP 73990 A b 20 AU 6676 M⊕ -
HIP 73990 A c 32 AU 6994 M⊕ -
HIP 73990 B 5234 AU

More about HIP 73990

       HIP 73990 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
HD 133803, Gaia DR3 6212050520082538880
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Frequently Asked Questions

How far is the HIP 73990 system from the Sun?

The HIP 73990 system is 359 light years or 110.1 parsecs from the Sun.

What galaxy is the HIP 73990 star in?

The HIP 73990 is in the Milky Way galaxy just like the Sun.

How many stars are in the HIP 73990 system?

The HIP 73990 system contains 2 stars.

What type of star is the HIP 73990?

The primary in the HIP 73990 system is a White-Blue star star.

What temperature is star HIP 73990?

The primary in the HIP 73990 system has a temperature of 7450.0 K. Find out more about the temperature of stars in Stellar guide
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