CHXR 73 is a
star
A star is an astronomical object comprising a luminous spheroid of plasma (physics), plasma held together by its gravity. The List of nearest stars and brown dwarfs, nearest star to Earth is the Sun. Many other stars are visible to the naked ...
in the
constellation
A constellation is an area on the celestial sphere in which a group of visible stars forms Asterism (astronomy), a perceived pattern or outline, typically representing an animal, mythological subject, or inanimate object.
The origins of the e ...
Chamaeleon, about 620 light-years away from Earth.
The star is located within Cha I, a
molecular cloud.
It has a low temperature of 3,490
K typical of
red dwarf
''Red Dwarf'' is a British science fiction comedy franchise created by Rob Grant and Doug Naylor, which primarily consists of a television sitcom that aired on BBC Two between 1988 and 1999, and on Dave since 2009, gaining a cult following. T ...
s, but unlike typical red dwarfs it has an unusually large radius of —this is because of its young age, only 8 million years.
[ ]
Planetary system
A companion, CHXR 73 b, has been found via direct imaging
Any planet is an extremely faint light source compared to its parent star. For example, a star like the Sun is about a billion times as bright as the reflected light from any of the planets orbiting it. In addition to the intrinsic difficulty of ...
. CHXR 73 has a mass of about 12 Jupiters.
References
{{DEFAULTSORT:CHXR 73
Chamaeleon (constellation)
M-type main-sequence stars
Emission-line stars
Planetary systems with one confirmed planet
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