NGC 1555, sometimes known as Hind's Variable Nebula, Sh2-238 or HH 155, is a variable nebula 4 light years across, illuminated by the star T Tauri, located in the constellation Taurus.
NGC 1555, known colloquially as Hind's Variable Nebula, Sh2-238, or HH 155, is a relatively large nebula spanning 4 light years in diameter, illuminated by the energetic radiation of the T Tauri star within the Taurus constellation.