Taurus (constellation) is a white, spectral class B7 III giant star known as "El Nath", which comes from the Arabic phrase "the butting", as in butting by the horns of the bull. At magnitude 1.65, it is the second brightest star in the constellation, and shares the border with the neighboring constellation of Auriga. As a result, it also bears the designation Gamma Aurigae. Zeta Tauri (the proper name is "Tianguan") is an eclipsing binary star that completes an orbit every 133 days. A degree to the northwest of ζ Tauri is the Crab Nebula (M1), a supernova remnant. This expanding nebula
Felis (constellation) Felis (constellation) Felis (Latin for "cat") was a constellation created by French astronomer Jérôme Lalande in 1799. He chose the name partly because, as a cat lover, he felt sorry that there was not yet a cat among the constellations (although there are two lions and a lynx). It was between the constellations of Antlia and Hydra. This constellation was first depicted in the "Uranographia sive Astrorum Descriptio" (1801) of Johann Elert Bode. It is now obsolete. Its brightest star, HD 85951, was named "Felis" by the International Astronomical Union on 1 June 2018 and it is now so included