About "Oh be a fine girl and kiss me..." what are the types?
http://www.enchantedlearning.com/subjects/astronomy/stars/startypes.shtml: "Stars are classified by their spectra (the elements that they absorb) and their temperature. There are seven main types of stars. In order of decreasing temperature, O, B, A, F, G, K, and M.
O and B stars are uncommon but very bright; M stars are common but dim.

An easy mnemonic for remembering these is: "Oh be a fine girl, kiss me."
The Sun is a as a G2V type star, a yellow dwarf and a main sequence star. [sic]"

Great phrase, bingley!