Hypergiant
Videos
A hypergiant is a very rare type of star that has an extremely high luminosity, mass, size and mass loss because of its extreme stellar winds. The term hypergiant is defined as luminosity class 0 in t
Great nebula in Carina, surrounding Eta Carinae
Very Large Telescope image of the surroundings of VY Canis Majoris
Field surrounding the orange hypergiant star HR 5171 A
G299 Remnants Super Nova Type 1a 20150218
Stellar classification
Videos
In astronomy, stellar classification is the classification of stars based on their spectral characteristics. Electromagnetic radiation from the star is analyzed by splitting it with a prism or diffrac
Hypergiant
…A hypergiant (luminosity class 0, Ia-0 or Ia+) is a very rare type of star that has an extremely high luminosity, mass, size and mass loss because of its extreme stellar winds. The…
UGC 5797, an emission-line galaxy where massive bright blue stars are formed
Artist's impression of a Y-dwarf
Image of the carbon star R Sculptoris and its striking spiral structure
Sirius A and B (a white dwarf of type DA2) resolved by Hubble