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WASP 18
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Star WASP 18

Yellow-White star WASP 18 is located 400 light years away from the Sun. It is a single star of spectral class F6V, that has 126 % of solar mass. There is at least one exoplanet in this system.
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Sun distance
400 light years
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WASP 18

Yellow-White star
Spectral class: F6V

Location +

Ascension iconRight ascension: 1h 37m 25.076s
Declination iconDeclination: -45° 40' 40.047'' (southern hemisphere)
Parallax iconParallax: 8.144
Distance iconSun distance: 400.472 ly | 122.8 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: 125.6 % M Sun
| 1316 M Jupiter
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Star mass
Mass of the star WASP 18 is 1.256 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: 122 % R Sun
| 12.1 R Jupiter
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Star size
Radius of the star WASP 18 is 1.216 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: 6368 K | 1.1 T Sun
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Star temperature
Surface temperature of WASP 18 is 6368 K, which is 110 % 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

Magnitude iconApparent magnitude (V): 9.3
Magnitude iconAbsolute magnitude (V): 3.8
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 18 system structure

 WASP 18
WASP 18 b 0.02 AU 3274.4 M⊕ 12.4 R⊕ 0.9 days

More about WASP 18

Star WASP 18 is a main sequence star that fuses hydrogen atoms into helium. It is is approximately 22 % bigger than the Sun and temperature on its surface is around 6368 K (6095 °C), which is about 110 % of Sun's temperature.
       WASP 18 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 10069, HIP 7562, PPM 306061, SAO 215585, 2MASS J15595095-2803422, Gaia DR2 4955371367334610048, TOI 185, Gaia DR3 4955371367334610048
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External sources
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gaia icon
Gaia database (Gaia DR3 4955371367334610048)
Archive from the Gaia mission
tess icon
TESS database (TOI 185.01)
Archive from the TESS mission

Frequently Asked Questions

How far is the WASP 18 system from the Sun?

The WASP 18 system is 400 light years or 122.8 parsecs from the Sun.

What galaxy is the WASP 18 star in?

The WASP 18 is in the Milky Way galaxy just like the Sun.

How many stars are in the WASP 18 system?

The WASP 18 is a single star, there are no other known stars in the system.

What type of star is the WASP 18?

The star WASP 18 is a Yellow-White star star.

What temperature is star WASP 18?

The star WASP 18 has an effective temperature of 6368 K. Find out more about the temperature of stars in Stellar guide
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