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WD 1145+017
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Star WD 1145+017

White dwarf WD 1145+017 is located 462 light years away from the Sun. It is a single star of spectral class DB D, that has 63 % of solar mass. There is at least one exoplanet in this system.
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Sun distance
462 light years
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WD 1145+017

White dwarf
Spectral class: DB D

Location +

Ascension iconRight ascension: 11h 48m 33.635s
Declination iconDeclination: 269° 51' 0.175'' (northern hemisphere)
Parallax iconParallax: 7.059
Distance iconSun distance: 462.076 ly | 141.7 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: 63 % M Sun
| 660 M Jupiter
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Star mass
Mass of the star WD 1145+017 is 0.63 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: 2 % R Sun
| 0.2 R Jupiter
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Star size
Radius of the star WD 1145+017 is 0.02 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: 15020 K | 2.6 T Sun
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Star temperature
Surface temperature of WD 1145+017 is 15020 K, which is 260 % 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: 0.774 billions years | 0.17 Sun
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Star age
Star WD 1145+017 is 0.774 billion years old, which is about 0.17 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

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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WD 1145+017 system structure

 WD 1145+017
WD 1145+017 b 0.01 AU 0 M⊕ 0.2 R⊕ 0.2 days
WD 1145+017 belt 0.5 AU -

More about WD 1145+017

Star WD 1145+017 is is is much smaller than the Sun and temperature on its surface is around 15020 K (14747 °C), which is about 260 % of Sun's temperature.
       WD 1145+017 can be found in northern celestial hemisphere.
Other designations of this star
LBQS 1145+0145, EPIC 201563164, HE 1145+0145, SDSS J114833.62+012859.4
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Frequently Asked Questions

How far is the WD 1145+017 system from the Sun?

The WD 1145+017 system is 462 light years or 141.7 parsecs from the Sun.

What galaxy is the WD 1145+017 star in?

The WD 1145+017 is in the Milky Way galaxy just like the Sun.

How many stars are in the WD 1145+017 system?

The WD 1145+017 is a single star, there are no other known stars in the system.

What type of star is the WD 1145+017?

The star WD 1145+017 is a White dwarf star.

What temperature is star WD 1145+017?

The star WD 1145+017 has an effective temperature of 15020 K. Find out more about the temperature of stars in Stellar guide

stellar brief logoStellar Brief

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24. 10. 2026
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A planet’s helium atmosphere streams ahead of its orbit, while infrared observations reveal the hidden rhythms of its star. New work also shows how neutron-star tilt can reshape X-ray light, traces the past of massive blue supergiants, and maps cloudy and clear zones on the hot Jupiter WASP-43 b.
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