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MASCARA-2
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Star MASCARA-2

White-Blue star MASCARA-2 is located 447 light years away from the Sun. It is a single star of spectral class A2V, that has 176 % of solar mass. There is at least one exoplanet in this system.
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Sun distance
447 light years
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MASCARA-2

White-Blue star
Spectral class: A2V

Location +

Ascension iconRight ascension: 19h 38m 38.745s
Declination iconDeclination: 31° 13' 9.117'' (northern hemisphere)
Parallax iconParallax: 7.300
Distance iconSun distance: 446.782 ly | 137.0 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: 176 % M Sun
| 1844 M Jupiter
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Star mass
Mass of the star MASCARA-2 is 1.76 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: 160 % R Sun
| 15.9 R Jupiter
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Star size
Radius of the star MASCARA-2 is 1.6 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: 8730 K | 1.51 T Sun
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Star temperature
Surface temperature of MASCARA-2 is 8730 K, which is 151 % 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: 0.2 billions years | 0.04 Sun
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Star age
Star MASCARA-2 is 0.2 billion years old, which is about 0.04 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

Magnitude iconApparent magnitude (V): 7.6
Magnitude iconAbsolute magnitude (V): 1.9
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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MASCARA-2 system structure

 MASCARA-2
MASCARA-2 b 0.06 AU 1072 M⊕ 20.5 R⊕ 3.5 days

More about MASCARA-2

Star MASCARA-2 is a main sequence star that fuses hydrogen atoms into helium. It is is approximately 60 % bigger than the Sun and temperature on its surface is around 8730 K (8457 °C), which is about 151 % of Sun's temperature.
       MASCARA-2 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 185603, KELT-20, Gaia DR3 2033123654092592384
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External sources
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gaia icon
Gaia database (Gaia DR3 2033123654092592384)
Archive from the Gaia mission
tess icon
TESS database (TOI 1151.01)
Archive from the TESS mission

Frequently Asked Questions

How far is the MASCARA-2 system from the Sun?

The MASCARA-2 system is 447 light years or 137.0 parsecs from the Sun.

What galaxy is the MASCARA-2 star in?

The MASCARA-2 is in the Milky Way galaxy just like the Sun.

How many stars are in the MASCARA-2 system?

The MASCARA-2 is a single star, there are no other known stars in the system.

What type of star is the MASCARA-2?

The star MASCARA-2 is a White-Blue star star.

What temperature is star MASCARA-2?

The star MASCARA-2 has an effective temperature of 8730 K. Find out more about the temperature of stars in Stellar guide
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