(ORDO NEWS) — A team of astronomers has photographed a brown dwarf orbiting HIP 21152, a young sun-like star in the Hyades cluster.
The Hyades, located just 150 light-years away, is the closest star cluster to Earth in the constellation Taurus. Their V-shaped pattern can be seen with the naked eye.
The Hyades Cluster has attracted the attention of astronomers as an important research target for studying the evolution of stars and planets.
The newly discovered brown dwarf HIP 21152 B is the first confirmed substellar companion of a main sequence star in the Hyades. Its mass is about 22-36 Jupiter masses.
The team determined the mass of HIP 21152 B and calculated its orbit using a total of four direct images taken with Extreme adaptive optics systems of the Subaru Telescope (SCExAO) and Coronagraphic High Angular Resolution Imaging Spectrograph (CHARIS), as well as adaptive optics systems of the Keck Observatory.
The researchers took the spectra of the brown dwarf, showing that the atmosphere of HIP 21152 B is moving from class L to class T. This means that it is getting colder, its temperature is in the range of 1200-1300 K.
Interestingly, the brown dwarf has a similar spectrum to the famous HR 8799 system, which is the first exoplanetary system photographed by the Mauna Kea Observatory, the Keck Observatory and the Gemini Observatory.
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