Star HD 203473

Binary star HD 203473 is located 237 light years away from the Sun. It consists of a yellow star and a red dwarf. For now, there are no known exoplanets in this star system.

HD 203473 A

Yellow star

Spectral class: G6V

Location

Right ascension: 21h 22m 19.07s

Declination: 5° 1' 24.909'' (equatorial region)

Parallax: 13.74

Sun distance: 237.374 ly | 72.8 pc

Basic characteristic

Mass: 82 % M Sun

Size: 148 % R Sun

Temperature: 5847 K | 1.01 T Sun

Luminosity: 2.31 L Sun

Photometry

Apparent magnitude (V): 8.2

Absolute magnitude (V): 3.9

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).

HD 203473 B

Red dwarf

Location

Distance from the primary: 4.161 AU

Basic characteristic

Mass: 10 % M Sun

HD 203473 system structure

	HD 203473 A
	HD 203473 B		4.161 AU

More about HD 203473

       HD 203473 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
AG+04° 2898, BD+04°4656, HIP 105521, SAO 126740, GSC 00536-00696, Gaia DR3 1738397638078725248

External sources

The Masses of a Sample of Radial-Velocity Exoplanets with Astrometric Measurements

Scientific study, Accepted: 22. 03. 2023

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