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WR 1
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Star WR 1

Wolf-Rayet star WR 1 is located 10548 light years away from the Sun. It is a single star of spectral class WN4-s, that has 2700 % of solar mass. For now, there are no known exoplanets in this star system.
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Sun distance
10548 light years
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WR 1

Wolf-Rayet star
Spectral class: WN4-s

Location +

Ascension iconRight ascension: 0h 43m 28.397s
Declination iconDeclination: 64° 45' 35.385'' (northern hemisphere)
Parallax iconParallax: 0.309
Distance iconSun distance: 10,548.380 ly | 3,234.2 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: 2700 % M Sun
| 28284 M Jupiter
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Star mass
Mass of the star WR 1 is 27 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: 226 % R Sun
| 22.5 R Jupiter
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Star size
Radius of the star WR 1 is 2.26 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: 112200 K | 19.42 T Sun
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Star temperature
Surface temperature of WR 1 is 112200 K, which is 1942 % 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: 760000 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 iconApparent magnitude (V): 10.1
Magnitude iconAbsolute magnitude (V): 10.1
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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WR 1 system structure

 WR 1

More about WR 1

Star WR 1 is is approximately 2 times bigger than the Sun and temperature on its surface is around 112200 K (111927 °C), which is about 1942 % of Sun's temperature.
       WR 1 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.
Other designations of this star
V863 Cas, BD+63°83, HD 4004, HIP 3415, Gaia DR3 524101256981955200
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External sources
simbad icon
Simbad database (HD 4004)
Astronomical database SIMBAD (the Set of Identifications, Measurements and Bibliography for Astronomical Data)
gaia icon
Gaia database (Gaia DR3 524101256981955200)
Archive from the Gaia mission

Frequently Asked Questions

How far is the WR 1 system from the Sun?

The WR 1 system is 10548 light years or 3,234.2 parsecs from the Sun.

What galaxy is the WR 1 star in?

The WR 1 is in the Milky Way galaxy just like the Sun.

How many stars are in the WR 1 system?

The WR 1 is a single star, there are no other known stars in the system.

What type of star is the WR 1?

The star WR 1 is a Wolf-Rayet star star.

What temperature is star WR 1?

The star WR 1 has an effective temperature of 112200 K. Find out more about the temperature of stars in Stellar guide
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Estimated values
icon Objects listed in the Stellar Catalog often have values that are estimates. These estimates are determined using their known characteristics, such as spectral type, brightness across different wavelengths, distance from a star, and other factors.
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