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DENIS J0630-1840 B
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Star DENIS J0630-1840 B

Brown dwarf DENIS J0630-1840 B is located 65 light years away from the Sun. It is a single star of spectral class L5.5, that has 5 % of solar mass. For now, there are no known exoplanets in this star system.
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Sun distance
65 light years
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DENIS J0630-1840 B

Brown dwarf
Spectral class: L5.5

Basic characteristic

icon weight
Mass: 5.2 % M Sun
| 54 M Jupiter
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Star mass
Mass of the star DENIS J0630-1840 B is 0.052 solar masses (or 54.5 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
temperature iconTemperature: 1800 K
 (estimate)
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Star temperature
Surface temperature of DENIS J0630-1840 B is estimated to be 1800 K, which is 31 % 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: 0.15 billions years | 0.03 Sun
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Star age
Star DENIS J0630-1840 B is 0.15 billion years old, which is about 0.03 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

Magnitude iconAbsolute magnitude (V): -1.5
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
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DENIS J0630-1840 B system structure

 DENIS J0630-1840 A
DENIS J0630-1840 B

More about DENIS J0630-1840 B

       DENIS J0630-1840 B can be found in southern celestial hemisphere, however it is too dim to be seen with the naked eye or even a small telescope.
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External sources
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Scientific study, Accepted: 29. 12. 2026
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A Spatial Map of the Atmospheric Limb of a Hot Jupiter
Scientific study, Accepted: 14. 10. 2026
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icon study
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Peering into the Midplane of the DM Tau Disk using N2H+ and DCO+
Scientific study, Accepted: 13. 10. 2026

News from this star system

Molecular emission in the disk around DM Tauri reveals complex chemical processes
iconToday
Image: Molecular emission in the disk around DM Tauri reveals complex chemical processes
Observations of the disk around DM Tauri reveal how N2H+ and DCO+ molecules are distributed. The data show that external UV radiation and cosmic rays influence the chemical makeup of the disk out to 400 astronomical units, impacting how planets may form....
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Narrow ring of gas found near the young star HD 152384
iconToday
Image: Narrow ring of gas found near the young star HD 152384
A narrow ring of gas has been characterized around the young star HD 152384. Located at the dust sublimation radius, the ring likely formed from the collisions of rocky planetesimals, offering a new look at early planetary system evolution....
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Atmospheric composition of hot Jupiter KELT-2A b reveals chemical history
iconToday
Image: Atmospheric composition of hot Jupiter KELT-2A b reveals chemical history
New observations of hot Jupiter KELT-2A b confirm water vapor in its atmosphere. The planet shows a carbon-to-oxygen ratio similar to its host star but with overall lower metallicity, suggesting a complex migration history from far out in its star system....
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Frequently Asked Questions

How far is the DENIS J0630-1840 B system from the Sun?

The DENIS J0630-1840 B system is 65 light years or 20.0 parsecs from the Sun.

What galaxy is the DENIS J0630-1840 B star in?

The DENIS J0630-1840 B is in the Milky Way galaxy just like the Sun.

How many stars are in the DENIS J0630-1840 B system?

The DENIS J0630-1840 B is a single star, there are no other known stars in the system.

What type of star is the DENIS J0630-1840 B?

The star DENIS J0630-1840 B is a Brown dwarf star.

What temperature is the DENIS J0630-1840 B?

The primary in the DENIS J0630-1840 B system has an effective temperature of K ( °C). 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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