The absolute magnitude M, of a star or astronomical object is defined as the apparent magnitude it would have as seen from a distance of 10 parsecs (about 32.6 light years). The absolute magnitude of the Sun is 4.83 in the V band (yellow) and 5.48 in the B band (blue).
1 [NEW!] Sports vocabulary: Words for popular American sports. [ 2 NEW!] Air Travel: Useful words for traveling on airplanes and through airports. 3  The Environment: Vocabulary related to environmental science and climate change.
Because I'm quite sure that the average vocabulary of an English speaker is 5000 words - that is not even the number of words needed for the JLPT2 let alone the JLPT 1 which is 10,000 words. Update: By how many words I am asking more along the lines of how many in common use...