The story of Betelgeuse has kicked things off, so it seems appropriate to discuss Supernova. I am sure if I asked the question; “What is a Supernova“ Most would answer the obvious, “An old star exploding at the end of it’s life“ Whilst true, it is also not accurate either. There was a time when… Read More »
ETA Carina. (10h 45m 03.591s / −59° 41′ 04.26″) It is believed that before Western Sailors ventured south enough to see Eta Carina, once called Eta Argus, that is was the brightest star in the sky as seen from Earth, perhaps as bright as magnitude -4.3, however, since it was discovered by Western astronomers and… Read More »
There has been quite a bit of discussion of late regarding the dimming of the star α Orionis (Alpha Orionis) or commonly known as Betelgeuse. Betelgeuse is a semi-regular variable Supergiant Star that is located to the upper right of the attached Hertzsprung-Russel diagram. It is classified as spectral class M1-M 2-1a to ab. The classification depends… Read More »