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WISEA J1553+6933
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Star WISEA J1553+6933

Little is known about object WISEA J1553+6933. Based on its low brightness and position it seems to be a brown dwarf or a very low-mass star.
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Sun distance
6608 light years
galaxy map

WISEA J1553+6933

Brown dwarf

Location +

Ascension iconRight ascension: 15h 53m 45.339s
Declination iconDeclination: 69° 34' 17.884'' (northern hemisphere)
Parallax iconParallax: 0.494
Distance iconSun distance: 6,608.362 ly | 2,026.1 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: 2 % M Sun
| 21 M Jupiter
 (estimate)
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Star mass
The estimated mass of the star WISEA J1553+6933 is about 2 % of the Sun's mass, or approximately 21 Jupiter 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: 8 % R Sun
| 0.8 R Jupiter
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Star size
Radius of the star WISEA J1553+6933 is 0.08 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: 960 K | 0.17 T Sun
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Star temperature
Surface temperature of WISEA J1553+6933 is 960 K, which is 17 % 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

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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WISEA J1553+6933 system structure

 WISEA J1553+6933

More about WISEA J1553+6933

Brown dwarf WISEA J1553+6933 is is is much smaller than the Sun and temperature on its surface is around 960 K (687 °C), which is about 17 % of Sun's temperature.
       WISEA J1553+6933 can be found in northern celestial hemisphere, however it is too dim to be seen with the naked eye or even a small telescope.
Other designations of this star
Gaia DR3 1647012343315790464
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External sources
icon study
gaia icon
Gaia database (Gaia DR3 1647012343315790464)
Archive from the Gaia mission

News from this star system

Brown dwarf WISEA J155349.96+693355.2 linked to ancient galaxy collision
Image: Brown dwarf WISEA J155349.96+693355.2 linked to ancient galaxy collision
Brown dwarf WISEA J155349.96+693355.2 is the first of its kind linked to the Gaia-Enceladus substructure. JWST data reveals its metal-poor atmosphere and an extreme, eccentric orbit, confirming its origin as an accreted object from an ancient galaxy collision....
25.9.2026
Read article >

Frequently Asked Questions

How far is the WISEA J1553+6933 system from the Sun?

The WISEA J1553+6933 system is 6608 light years or 2,026.1 parsecs from the Sun.

What galaxy is the WISEA J1553+6933 star in?

The WISEA J1553+6933 is in the Milky Way galaxy just like the Sun.

How many stars are in the WISEA J1553+6933 system?

The WISEA J1553+6933 is a single star, there are no other known stars in the system.

What type of star is the WISEA J1553+6933?

The star WISEA J1553+6933 is a Brown dwarf star.

What temperature is star WISEA J1553+6933?

The star WISEA J1553+6933 has an effective temperature of 960 K. Find out more about the temperature of stars in Stellar guide
Class of stars Brown dwarf
Brown dwarfs are not really stars, because there is no thermonuclear fusion in their core. These objects are smaller and cooler than stars, but too massive to be considered planets
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