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WASP-103
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Star WASP-103

Yellow-White star WASP-103 is located 1779 light years away from the Sun. It is a single star of spectral class F8V, that has 122 % of solar mass. There is at least one exoplanet in this system.
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Sun distance
1779 light years
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WASP-103

Yellow-White star
Spectral class: F8V

Location +

Ascension iconRight ascension: 16h 37m 15.577s
Declination iconDeclination: 7° 11' 0.110'' (equatorial region)
Parallax iconParallax: 1.833
Distance iconSun distance: 1,779.162 ly | 545.5 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: 122 % M Sun
| 1278 M Jupiter
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Star mass
Mass of the star WASP-103 is 1.220 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: 144 % R Sun
| 14.3 R Jupiter
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Star size
Radius of the star WASP-103 is 1.436 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: 6110 K | 1.06 T Sun
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Star temperature
Surface temperature of WASP-103 is 6110 K, which is 106 % 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: 4 billions years | 0.87 Sun
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Star age
Star WASP-103 is 4 billion years old, which is about 0.87 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
luminosity icon
Luminosity: 7.6 L Sun
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Star luminosity
Luminosity is the total amount of energy a star gives off every second. Think of it as the star’s true brightness — not just how bright it looks from Earth. This is important because some stars may appear dim simply because they are far away, not because they’re actually faint... icon More about Star luminosity in StellarGuide

Photometry

Magnitude iconAbsolute magnitude (V): -8.7
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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WASP-103 system structure

 WASP-103
WASP-103 b 0.02 AU 462.6 M⊕ 17.1 R⊕ 0.9 days

More about WASP-103

Star WASP-103 is a main sequence star that fuses hydrogen atoms into helium. It is is approximately 44 % bigger than the Sun and temperature on its surface is around 6110 K (5837 °C), which is about 106 % of Sun's temperature.
       WASP-103 can be found in northern celestial hemisphere.
Other designations of this star
Gaia DR2 4439085988769170432, 2MASS J16371556+0711000
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External sources
icon study
Stellar obliquity measurements of six gas giants
Scientific study, Accepted: 22. 03. 2024
icon study
Thermal Emission from the Hot Jupiter WASP-103b in
Scientific study, Accepted: 24. 03. 2023
icon study

Frequently Asked Questions

How far is the WASP-103 system from the Sun?

The WASP-103 system is 1779 light years or 545.5 parsecs from the Sun.

What galaxy is the WASP-103 star in?

The WASP-103 is in the Milky Way galaxy just like the Sun.

How many stars are in the WASP-103 system?

The WASP-103 is a single star, there are no other known stars in the system.

What type of star is the WASP-103?

The star WASP-103 is a Yellow-White star star.

What temperature is star WASP-103?

The star WASP-103 has an effective temperature of 6110 K. Find out more about the temperature of stars in Stellar guide
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