Star XO-3

Yellow-White star XO-3 is located 658 light years away from the Sun. It is a single star of spectral class F5V, that has 121 % of solar mass. There is at least one exoplanet in this system.

XO-3

Yellow-White star (spectral class F5V)

Location

Right ascension: 4h 21m 52.705s

Declination: 57° 49' 1.868'' (northern hemisphere)

Parallax: 4.96

Sun distance: 657.573 ly | 201.6 pc

Basic characteristic

Mass: 121.3 % M Sun

Size: 138 % R Sun

Temperature: 6429 K | 1.11 T Sun

Age: 2.82 billions years | 0.61 Sun

Luminosity: 2.92 L Sun

1 exoplanet

XO-3 b

0.05 AU

3748.1 M⊕

14.5 R⊕

3.2 days

Photometry

Apparent magnitude (V): 9.9

Absolute magnitude (V): 3.3

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 XO-3

Star XO-3 is a main sequence star that fuses hydrogen atoms into helium. It is is approximately 38 % bigger than the Sun and temperature on its surface is around 6429 K (6156 °C), which is about 111 % of Sun's temperature.

      XO-3 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
TYC 3727-1064-1, GSC 03727-01064, 2MASS J04215269+5749018

External sources

TESS database (TOI 1676.01)

Archive from the TESS mission

Thermal Phase Curves of XO-3b: An Eccentric Hot Jupiter at the Deuterium Burning Limit

Scientific study, 22. 12. 2021

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