Changes

==History==

==History==

Sirius A was known throughout human history and was referred to ''Sopdet'' by the ancient Egyptians.  The [[Middle Kingdom]] of Egypt even based their calendar on the first day Sirius would become visible right before sunrise, to indicate the coming annual flooding of the Nile<ref>http://books.google.com/books?id=qUk0GyDJRCoC&pg=PP1&dq=isbn=0306466120&sig=wDa9MW9Qy5f3BIvPvbDLc_LMnJE#PPA500,M1</ref>. The star was called ''Sothis'' by the ancient Greeks, who viewed it as a herald that forewarned of a hot and dry summer ahead.  [[Ptolemy]] was the first to actually map the star in the sky, recorded in the ''Almagest'', or Great Book.  It wasn’t until 1862 that Sirius B was observed and not until 1915 it was classified as a white dwarf<ref>http://adsabs.harvard.edu/abs/1877AReg...15..186F</ref>.

Sirius A was known throughout human history and was referred to ''Sopdet'' by the ancient Egyptians.  The [[Middle Kingdom]] of Egypt even based their calendar on the first day Sirius would become visible right before sunrise, to indicate the coming annual flooding of the Nile<ref>http://books.google.com/books?id=qUk0GyDJRCoC&pg=PP1&dq=isbn=0306466120&sig=wDa9MW9Qy5f3BIvPvbDLc_LMnJE#PPA500,M1</ref>. The [[ancient Greek]] name for Sirius was Σείριος ''Seirios'',which was derived from σείριος, meaning scorching or destructive. It was seen as a as a herald that forewarned of a hot and dry summer ahead.<ref>http://penelope.uchicago.edu/Thayer/E/Gazetteer/Topics/astronomy/_Texts/secondary/ALLSTA/Canis_Major*.html</ref> [[Ptolemy]] was the first to actually map the star in the sky, recorded in the ''Almagest'', or Great Book.  It wasn’t until 1862 that Sirius B was observed and not until 1915 it was classified as a white dwarf<ref>http://adsabs.harvard.edu/abs/1877AReg...15..186F</ref>.

==The stars==

==The stars==