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V439 Andromedae
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Star V439 Andromedae

Orange star V439 Andromedae is located 45 light years away from the Sun. It is a single star of spectral class K0Ve, that has 89 % of solar mass. For now, there are no known exoplanets in this star system.
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Sun distance
45 light years
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V439 Andromedae

Orange star, BY Draconis variable
Spectral class: K0Ve

Location +

Ascension iconRight ascension: 0h 6m 37.254s
Declination iconDeclination: 29° 1' 14.569'' (northern hemisphere)
Parallax iconParallax: 72.642
Distance iconSun distance: 44.899 ly | 13.8 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: 88.9 % M Sun
| 931 M Jupiter
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Star mass
Mass of the star V439 Andromedae is 0.889 solar masses.

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: 92 % R Sun
| 9.1 R Jupiter
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Star size
Radius of the star V439 Andromedae is 0.9172 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 icon
Temperature: 5509 K | 0.95 T Sun
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Star temperature
Surface temperature of V439 Andromedae is 5509 K, which is 95 % 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
time icon
Age: 0.1 billions years | 0.02 Sun
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Star age
Star V439 Andromedae is 0.1 billion years old, which is about 0.02 of the Sun's age.

The age of a star tells us how long it has been shining since it formed. Knowing a star’s age helps astronomers understand its life stage, how it has changed over time, and what will happen to it in the future... icon More about Star age in StellarGuide
luminosity icon
Luminosity: 0.6078 L Sun
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Star luminosity
Luminosity is the total amount of energy a star gives off every second. Think of it as the star’s true brightness — not just how bright it looks from Earth. This is important because some stars may appear dim simply because they are far away, not because they’re actually faint... icon More about Star luminosity 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
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V439 Andromedae system structure

 V439 Andromedae
V439 Andromedae disc 7.5 AU -

More about V439 Andromedae

Nearby star V439 Andromedae is a main sequence star that fuses hydrogen atoms into helium. It is approximately 90 % of the size of Sun and temperature on its surface is around 5509 K (5236 °C), which is about 95 % of Sun's temperature.
      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. V439 Andromedae 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. 

      V439 Andromedae 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+28°4704, GC 95, GSC 01735-02532, GSC 01735-00927, GJ 5, Gliese 5, HD 166, HIP 544, HR 8, SAO 73743, NSV 33, Gaia EDR3 2860924621205256704
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External sources
simbad icon
Simbad database (HD 166)
Astronomical database SIMBAD (the Set of Identifications, Measurements and Bibliography for Astronomical Data)
gaia icon
Gaia database (Gaia EDR3 2860924621205256704)
Archive from the Gaia mission

Frequently Asked Questions

How far is the V439 Andromedae system from the Sun?

The V439 Andromedae system is 45 light years or 13.8 parsecs from the Sun.

What galaxy is the V439 Andromedae star in?

The V439 Andromedae is in the Milky Way galaxy just like the Sun.

How many stars are in the V439 Andromedae system?

The V439 Andromedae is a single star, there are no other known stars in the system.

What type of star is the V439 Andromedae?

The star V439 Andromedae is a Orange star star.

What temperature is star V439 Andromedae?

The star V439 Andromedae has an effective temperature of 5509 K. Find out more about the temperature of stars in Stellar guide
Closest stars

 SDSS J000013.54+255418.6
 0.05 M☉ 3 ly

G 129-47
 - 4.8 ly

85 Pegasi
 0.88 M☉ 5 ly

G 130-3
 - 5 ly

LP 292-67
 - 6.2 ly
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