T Tauri [SEP] constellation
T Tauri
T Tauri is a variable star in the constellation Taurus, the prototype of the T Tauri stars. It was discovered in October 1852 by John Russell Hind. T Tauri appears from Earth amongst the Hyades cluster, not far from ε Tauri; but it is actually 420 light years behind it and was not formed with the rest of them. Faint nebulosity around T Tauri is a Herbig–Haro object called Burnham's Nebula or HH 255.
Like all T Tauri stars, it is very young, being
PDS 110
PDS 110 is a young 11th magnitude star located approximately away in the constellation Orion. In 2017, it was discovered that the star is orbited by an exoplanet or brown dwarf with a disk of dust around it.
Description.
PDS 110 is a young star still approaching the main sequence. It has been classified as a T Tauri star, or as a pre-main sequence star. The emission lines indicative of a T Tauri classification are somewhat weaker than a typical T Tauri star, interpreted as