2MASS J10475385+2124234


2MASS J10475385+2124234 is a brown dwarf of spectral class T6.5, in the constellation Leo about 34 light-years from Earth, hence in galactic topographical and interstellar medium study terms being in the Local Bubble and very nearby in the Orion Arm. It is the first brown dwarf to have an inferred range of its typical wind speeds computed.

Discovery

2MASS J1047+21 was discovered in 1999 along with eight other brown dwarf candidates by Adam J. Burgasser et al. from Two Micron All-Sky Survey, conducted from 1997 to 2001. Follow-up observations with the Keck I 10-meter telescope's Near Infrared Camera were conducted on 27 May 1999 and identified methane in 2MASS J1047+21's near-infrared spectrum, classifying it as a T-type brown dwarf.

Methodology

The wind speed is directly inferred from minute, regular cycles in its visible appearance compared to the same at radio wave spectra. The radio emissions are coming from electrons interacting with the magnetic field, which is rooted deep in the interior. The visible and infrared data, on the other hand, reveal what's happening in the gas giant's cloud tops.

Distance

2MASS J1047+21 is about from Earth.

Characteristics

2MASS J1047+21 is a T-type brown dwarf.

Wind speeds

Wind speeds on 2MASS J1047+21 were measured to be by the Spitzer Space Telescope.