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Temperatures (in deg. Kelvin)

7×10-7       Laser cooling of cesium atoms 

2.17         Liquid 4He superfluid transition temperature 

2.726        Cosmic microwave background temperature today 

273          Water freezing temperature

311          Human surface temperature 

373          Water boiling temperature

506          Paper burning temperature 

740          Typical surface temperature of Venus 

1811         Melting temperature of iron 

5770         Solar effective temperature 

1.4×107      Center of the Sun

5×107        Typical gas temperature in a cluster of galaxies

3×1010       Center of a supernova. 

Jose Wudka