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15 Vulpeculae
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Star 15 Vulpeculae

Yellow giant 15 Vulpeculae is located 243 light years away from the Sun. It is a single star of spectral class A4IIIm, that has 241 % of solar mass. For now, there are no known exoplanets in this star system.
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Sun distance
243 light years
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15 Vulpeculae

Yellow giant
Spectral class: A4IIIm

Location +

Ascension iconRight ascension: 20h 1m 6.119s
Declination iconDeclination: 27° 45' 12.927'' (northern hemisphere)
Parallax iconParallax: 13.443
Distance iconSun distance: 242.627 ly | 74.4 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: 241 % M Sun
| 2525 M Jupiter
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Star mass
Mass of the star 15 Vulpeculae is 2.41 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: 443 % R Sun
| 44.1 R Jupiter
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Star size
Radius of the star 15 Vulpeculae is 4.43 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: 7685 K | 1.33 T Sun
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Star temperature
Surface temperature of 15 Vulpeculae is 7685 K, which is 133 % 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
luminosity icon
Luminosity: 61.6 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

Magnitude iconAbsolute magnitude (V): -4.4
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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15 Vulpeculae system structure

 15 Vulpeculae

More about 15 Vulpeculae

Star 15 Vulpeculae is is approximately 4 times bigger than the Sun and temperature on its surface is around 7685 K (7412 °C), which is about 133 % of Sun's temperature.
       15 Vulpeculae 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
15 Vul, HD 189849, NT Vul, BD+27°3587, FK5 1523, GC 27753, HD 189849, HIP 98543, HR 7653, SAO 88071, Gaia DR3 2027458764012840576
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External sources
icon study
gaia icon
Gaia database (Gaia DR3 2027458764012840576)
Archive from the Gaia mission

Frequently Asked Questions

How far is the 15 Vulpeculae system from the Sun?

The 15 Vulpeculae system is 243 light years or 74.4 parsecs from the Sun.

What galaxy is the 15 Vulpeculae star in?

The 15 Vulpeculae is in the Milky Way galaxy just like the Sun.

How many stars are in the 15 Vulpeculae system?

The 15 Vulpeculae is a single star, there are no other known stars in the system.

What type of star is the 15 Vulpeculae?

The star 15 Vulpeculae is a Yellow giant star.

What temperature is star 15 Vulpeculae?

The star 15 Vulpeculae has an effective temperature of 7685 K. Find out more about the temperature of stars in Stellar guide

stellar brief logoStellar Brief

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28. 10. 2026
stellar brief logo
WISE J1517+05 flashes powerful radio bursts every 1.149 hours, making it one of the fastest-spinning ultracool dwarfs detected in radio waves. The latest reports also explore how transit changes can reveal a hidden planet in Kepler-88 and map a possible hotspot on WD 1202-024 B. Other findings track helium in V1298 Tau b’s atmosphere and a warped dust ring around CQ Tau.
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