Star K2-198

Orange star K2-198 is located 364 light years away from the Sun. It is a single star, that has 80 % of solar mass. There are multiple known exoplanets in this system.

K2-198

Orange star

Location

Right ascension: 13h 15m 22.486s

Declination: -6° 27' 53.97'' (equatorial region)

Parallax: 8.966

Sun distance: 363.774 ly | 111.5 pc

Basic characteristic

Mass: 79.9 % M Sun

Size: 76 % R Sun

Temperature: 5212 K | 0.9 T Sun

3 exoplanets

K2-198 c	0.03 AU	1.4 R⊕	3.4 days
K2-198 d	0.05 AU	2.4 R⊕	7.5 days
K2-198 b	0.09 AU	4.2 R⊕	17 days

Photometry

Apparent magnitude (V): 11

Absolute magnitude (V): 5.8

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).

More about K2-198

Star K2-198 is approximately 80 % of the size of Sun and temperature on its surface is around 5212 K (4939 °C), which is about 90 % of Sun's temperature.

      K2-198 can be found in southern celestial hemisphere, however it is too dim to be seen with the naked eye or even a small telescope.

Other designations of this star
EPIC 212768333, 2MASS J13152252-0627535, TYC 4964-1269-1, WISE J131522.49-062753.9, Gaia DR3 3628687065162340224

External sources

Three young planets around the K-dwarf K2-198: High-energy environment, evaporation history and expected future

Scientific study, Accepted: 12. 11. 2023

Gaia database (Gaia DR3 3628687065162340224)

Archive from the Gaia mission

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