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HD 222143
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Star HD 222143

Yellow star HD 222143 is located 74 light years away from the Sun. It is a single star of spectral class G2, that has typically about 90 % of solar mass. For now, there are no known exoplanets in this star system.
Sun distance
74 light years
galaxy map

HD 222143

Yellow star, BY Draconis variable
Spectral class: G2

Location +

Ascension iconRight ascension: 23h 37m 59.048s
Declination iconDeclination: 46° 11' 57.777'' (northern hemisphere)
Parallax iconParallax: 43.843
Distance iconSun distance: 74.392 ly | 22.8 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: 80 % M Sun
| 880 M Jupiter
 (estimate)
+
Star mass
The mass of the star HD 222143 is unknown. Based on its other characteristics, it is estimated to be about 80 % of the Sun’s mass.

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: 140 % R Sun
| 13.8 R Jupiter
(estimate)
+
Star size
Radius of the star HD 222143 is not known. Its estimated value based on other similar stars is about 140 % 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

Photometry

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
More about HD 222143
      a BY Draconis variable. Stars from this category exhibit periodic variations in their luminosity. The variability is caused by a rotation which shows and hides starspots on the surface. HD 222143 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. 

      HD 222143 is a BY Draconis variable. Stars from this category exhibit periodic variations in their luminosity. The variability is caused by a rotation which shows and hides starspots on the surface.
Other designations of this star
BD+45 4288，SAO 53210，HD 222143，HR 8964, Gaia EDR3 1939093660163197312
External sources
simbad icon
Simbad database (HD 222143)
Astronomical database SIMBAD (the Set of Identifications, Measurements and Bibliography for Astronomical Data)
gaia icon
Gaia database (Gaia EDR3 1939093660163197312)
Archive from the Gaia mission
Class of stars Yellow star
Stars of spectral type G are sometimes also called yellow dwarfs. The Sun is one of them. These stars have a yellow color and a temperature above 5,000°C
Closest stars

 WISE J233527.07+451140.9
 - 1.4 ly

BD+45 4188
 - 5.5 ly

LP 239-52
 - 5.7 ly

LSPM J2345+4942
 - 5.9 ly

HD 220182
 - 6.4 ly
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