Astronomers from the United States published new pictures of a brown dwarf WD 0806-661 B. The star claims to be among the coldest brown dwarfs.
Dwarf WD 0806-661 B was launched in March this year. He is the companion white dwarf WD 0806-661 remoted from us to 19,2 ± 0,6 parsecs. Then it was found that the effective temperature of WD 0806-661 B is only about 300 ˚ K (27 ˚ C), in other words, close to room temperature.
The above images were obtained using an infrared space telescope, “Spitzer” in the period from December 2004 to August 2009.It is very clearly visible the dwarf WD 0806-661 B. The photographs have allowed to confirm that the brown dwarf moves around the white dwarf WD 0806-661 A, whose age is 2 ± 0,5 billion years. It was possible to estimate the mass and brown dwarf - it is 6-9 Jupiter.