Star 2MASS 0729-3954

Brown dwarf 2MASS 0729-3954 is located 26 light years away from the Sun. It is a single star of spectral class T8 D, that has 4 % of solar mass. For now, there are no known exoplanets in this star system.

2MASS 0729-3954

Brown dwarf

Spectral class: T8 D

Location

Right ascension: 7h 29m 0.025s

Declination: -39° 54' 4.399'' (southern hemisphere)

Parallax: 126.3

Sun distance: 25.8 ly | 7.9 pc

Basic characteristic

Mass: 3.5 % M Sun | 37 M Jupiter

Size: 9.4 % R Sun | 0.9 R Jupiter

Photometry

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

Absolute stellar magnitude in different parts of the electromagnetic spectrum from infrared (K band) to ultraviolet (U band).

2MASS 0729-3954 system structure

2MASS 0729-3954

More about 2MASS 0729-3954

       2MASS 0729-3954 can be found in southern celestial hemisphere, however it is too dim to be seen with the naked eye or even a small telescope.

Other designations of this star
2MASS 0729-39, 2MASS J07290002-3954043, WISEA J072859.49-395345.3, TIC 173510894

External sources

Simbad database (2MASS J07290002-3954043)

Astronomical database SIMBAD (the Set of Identifications, Measurements and Bibliography for Astronomical Data)

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

Closest stars

SCR J0740-4257	-	1.7 ly
Gliese 257	0.25 M☉	3.3 ly
WISE J071322.55-291751.9	-	6.8 ly
Gliese 318	0.45 M☉	7.8 ly
AP Columbae	0.25 M☉	8.6 ly

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