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Omega Andromedae
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Star Omega Andromedae

Binary star Omega Andromedae is located 94 light years away from the Sun. It consists of a subgiant and a yellow-white star. For now, there are no known exoplanets in this star system.
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Sun distance
94 light years
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Omega Andromedae A

Subgiant
Spectral class: F4IV

Location +

Ascension iconRight ascension: 1h 27m 39.930s
Declination iconDeclination: 45° 24' 22.305'' (northern hemisphere)
Parallax iconParallax: 34.733
Distance iconSun distance: 93.903 ly | 28.8 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: 96.3 % M Sun
| 1009 M Jupiter
+
Star mass
Mass of the star Omega Andromedae A is 0.963 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: 220 % R Sun
| 21.9 R Jupiter
+
Star size
Radius of the star Omega Andromedae A is 2.2 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: 6628 K | 1.15 T Sun
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Star temperature
Surface temperature of Omega Andromedae A is 6628 K, which is 115 % 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: 2.1 billions years | 0.46 Sun
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Star age
Star Omega Andromedae A is 2.1 billion years old, which is about 0.46 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: 7.1 L Sun
+
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

Magnitude iconApparent magnitude (V): 4.8
Magnitude iconAbsolute magnitude (V): 2.5
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

Omega Andromedae B

Yellow-White star
Spectral class: F5V

Basic characteristic

icon weight
Mass: 86 % M Sun
| 901 M Jupiter
+
Star mass
Mass of the star Omega Andromedae B is 0.963 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: 100 % R Sun
| 10 R Jupiter
(estimate)
+
Star size
Radius of the star Omega Andromedae B is not known. Its estimated value based on other similar stars is about 100 % 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: 6500 K
 (estimate)
+
Star temperature
Surface temperature of Omega Andromedae B is estimated to be 6537 K, which is 112 % 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 iconAbsolute magnitude (V): -2.3
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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Omega Andromedae system structure

 Omega Andromedae A
Omega Andromedae B

More about Omega Andromedae

       Omega Andromedae can be found in northern celestial hemisphere, and it is possible to see it with naked eye. The star is easily observable from Northern America, Europe and Asia.
Other designations of this star
ome And, 48 Andromedae, BD+44°307, FK5 1040, HD 8799, HIP 6813, HR 417, SAO 37228, PPM 44006, Gaia DR3 397372371388455424
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Frequently Asked Questions

How far is the Omega Andromedae system from the Sun?

The Omega Andromedae system is 94 light years or 28.8 parsecs from the Sun.

What galaxy is the Omega Andromedae star in?

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

How many stars are in the Omega Andromedae system?

The Omega Andromedae system contains 2 stars.

What type of star is the Omega Andromedae?

The primary in the Omega Andromedae system is a Subgiant star.

What temperature is star Omega Andromedae?

The primary in the Omega Andromedae system has a temperature of 6628 K. Find out more about the temperature of stars in Stellar guide
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LP 152-14
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MUSR 13
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V359 Andromedae
 - 8.3 ly
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