Telescopic Work for Starlight Evenings
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" Single stars of a fiery red or deep orange are not uncommon, but isolated blue or green stars are very rare. Amongst conspicuous stars /3 Librae (green) appears to be the only instance. " As an example of fiery-red stars Antares may be mentioned ; Alde- baran is deep reddish orange, and Betelgeuse reddish orange. Amongst the more prominent stars Capella, Rigel, and Pro- cyon may be mentioned as showing a bluish tinge, Altair and Vega are greenish, Arcturus is yellow, while Sirius, Deneb, Pola...ris, Fomalhaut, and Regulus are white. Mr. Birmingham published a catalogue of " The Red Stars " in the ( Transactions of the Royal Irish Academy, for August 1877, and Mr. Chambers has a working-catalogue of 7 1 9 such objects in the ' Monthly Notices, ' vol. Xlvii. Pp. 348-387. The region of Cygnus appears to be especially prolific in red stars, and many of these objects are variable. In a paper read at a recent meeting of the Astronomical Society of the Pacific Mr. Pier- son stated that in binary systems where the stars are of equal magnitude the colours are invariably the same, while those differing in magnitude differ also in colour and the larger star is always nearer the red end of the spectrum than its secondary.
What to read after Telescopic Work for Starlight Evenings?
You can find similar books in the "Read Also" column, or choose other free books by William F William Frederick Denning to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
" Single stars of a fiery red or deep orange are not uncommon, but isolated blue or green stars are very rare. Amongst conspicuous stars /3 Librae (green) appears to be the only instance. " As an example of fiery-red stars Antares may be mentioned ; Alde- baran is deep reddish orange, and Betelgeuse reddish orange. Amongst the more prominent stars Capella, Rigel, and Pro- cyon may be mentioned as showing a bluish tinge, Altair and Vega are greenish, Arcturus is yellow, while Sirius, Deneb, Pola...ris, Fomalhaut, and Regulus are white. Mr. Birmingham published a catalogue of " The Red Stars " in the ( Transactions of the Royal Irish Academy, for August 1877, and Mr. Chambers has a working-catalogue of 7 1 9 such objects in the ' Monthly Notices, ' vol. Xlvii. Pp. 348-387. The region of Cygnus appears to be especially prolific in red stars, and many of these objects are variable. In a paper read at a recent meeting of the Astronomical Society of the Pacific Mr. Pier- son stated that in binary systems where the stars are of equal magnitude the colours are invariably the same, while those differing in magnitude differ also in colour and the larger star is always nearer the red end of the spectrum than its secondary.
What to read after Telescopic Work for Starlight Evenings?
You can find similar books in the "Read Also" column, or choose other free books by William F William Frederick Denning to read onlineMoreLess
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