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HD 188559
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Star HD 188559

Orange star HD 188559 is located 77 light years away from the Sun. It is a single star of spectral class K3+V, that has typically about 70 % of solar mass. For now, there are no known exoplanets in this star system.
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Sun distance
77 light years
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HD 188559

Orange star, High proper motion star
Spectral class: K3+V

Location +

Ascension iconRight ascension: 19h 58m 33.191s
Declination iconDeclination: -54° 56' 14.785'' (southern hemisphere)
Parallax iconParallax: 42.336
Distance iconSun distance: 77.041 ly | 23.6 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
| 785.7 M Jupiter
 (estimate)
+
Star mass
The mass of the star HD 188559 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: 80 % R Sun
| 7.5 R Jupiter
(estimate)
+
Star size
Radius of the star HD 188559 is not known. Its estimated value based on other similar stars is about 80 % 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
temperature iconTemperature: 4800 K
 (estimate)
+
Star temperature
Surface temperature of HD 188559 is estimated to be 4796 K, which is 83 % of the temperature on the surface of the Sun.

The temperature of a star refers to the temperature at its surface, also called the photosphere. It is measured in kelvins (K), the standard unit for temperature in astronomy. A star’s temperature tells us a lot about its physical properties and where it stands in its evolutionary stage... icon More about Star temperature in StellarGuide

Photometry

Magnitude iconApparent magnitude (V): 8.5
Magnitude iconAbsolute magnitude (V): 6.7
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
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HD 188559 system structure

 HD 188559

More about HD 188559

Nearby star HD 188559 is a main sequence star that fuses hydrogen atoms into helium. 
       HD 188559 can be found in southern celestial hemisphere, you cannot see it with naked eye, but you can observe this star with basic telescope.
Other designations of this star
Gaia EDR3 6449124395465377920
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External sources
simbad icon
Simbad database (HD 188559)
Astronomical database SIMBAD (the Set of Identifications, Measurements and Bibliography for Astronomical Data)
gaia icon
Gaia database (Gaia EDR3 6449124395465377920)
Archive from the Gaia mission

Frequently Asked Questions

How far is the HD 188559 system from the Sun?

The HD 188559 system is 77 light years or 23.6 parsecs from the Sun.

What galaxy is the HD 188559 star in?

The HD 188559 is in the Milky Way galaxy just like the Sun.

How many stars are in the HD 188559 system?

The HD 188559 is a single star, there are no other known stars in the system.

What type of star is the HD 188559?

The star HD 188559 is a Orange star star.

What temperature is the HD 188559?

The primary in the HD 188559 system has an effective temperature of K ( °C). Find out more about the temperature of stars in Stellar guide
Closest stars

 HD 190422
 - 2.3 ly

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 - 4.5 ly

SCR J2040-5501
 - 8.3 ly

L 277-66
 - 8.4 ly
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