MASCARA-2

White-Blue star

Spectral class: A2

Location

Right ascension: 19h 38m 38.745s

Declination: 31° 13' 9.117'' (northern hemisphere)

Parallax: 7.3

Sun distance: 446.782 ly | 137 pc

Basic characteristic

Mass: 189 % M Sun

Size: 160 % R Sun

Temperature: 8980 K | 1.55 T Sun

Age: 0.2 billions years | 0.04 Sun

Photometry

Apparent magnitude (V): 7.6

Absolute magnitude (V): 1.9

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

Absolute stellar magnitude in different parts of the electromagnetic spectrum from infrared (K band) to ultraviolet (U band).

MASCARA-2 system structure

	MASCARA-2
		MASCARA-2 b	0.05 AU	1118.4 M⊕	20.5 R⊕	3.5 days

More about MASCARA-2

Star MASCARA-2 is is approximately 60 % bigger than the Sun and temperature on its surface is around 8980 K (8707 °C), which is about 155 % 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

External sources

A Comprehensive Analysis Spitzer 4.5 µm Phase Curve of Hot Jupiters

Scientific study, Accepted: 23. 08. 2024

The MOPYS project: A survey of 70 planets in search of extended He I and H atmospheres. No evidence of enhanced evaporation in young planets

Scientific study, Accepted: 25. 04. 2024

CHEOPS observations of KELT-20 b/MASCARA-2 b: an aligned orbit and signs of variability from a reflective dayside

Scientific study, Accepted: 06. 11. 2023

Retrieval survey of metals in six ultra-hot Jupiters: Trends in chemistry, rain-out, ionisation and atmospheric dynamics

Scientific study, Accepted: 26. 05. 2023

Gaia database (Gaia DR3 2033123654092592384)

Archive from the Gaia mission

TESS database (TOI 1151.01)

Archive from the TESS mission