Protoplanetary disk
HL Tauri (abbreviated
HL Tau) is a very young
T Tauri star[5] in the constellation
Taurus, approximately 450 light-years (140 pc) from Earth
[1] in the
Taurus Molecular Cloud.
[6] The luminosity and effective temperature of
HL Tauri imply that its age is less than 100,000 years.