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.
Latin and Greek Roots. An effective strategy for vocabulary building is to learn word parts to decipher the meaning of unfamiliar words. Word parts consist of common Latin and Greek roots as well as prefixes and suffixes.These word lists group words of related Latin and Greek roots into word families:atin and Greek Roots. An effective strategy for vocabulary building is to learn word parts to decipher the meaning of unfamiliar words. Word parts consist of common Latin and Greek roots as well as prefixes and suffixes.