Complex sentence: It was discovered in 2001 and initially suspected to be a brown dwarf, however high contrast observations in 2005 suggested that the object is probably a white dwarf star, as its spectrum does not exhibit molecular absorption features which are typical of brown dwarfs.
Split into simpler sentences: It was discovered in 2001 and initially suspected to be a brown dwarf. However high contrast observations in 2005 suggested that the object is probably a white dwarf star, as its spectrum does not exhibit molecular absorption features which are typical of brown dwarfs.