Dudley Observatory, American Astronomical Society, American Institute of Physics · New York [etc.] American Institute of Physics [etc.] · leaf 190
transit. Tt is on a cold steel blue orbluish gray narrow belt. No other spot July 20 11 55 no other spots visible. July 21 12 35 there seems to be a white spot past transit. July 27 12 30 can see no spots. If the observations of Aug. 2 are of the original whitespot, a rough approximation would make… … RING NEBULA IN LYRA AS A GREATSPIRAL. Photographed with 13-irtch Reflector of 20-inchFocuc, August 21, 1903. Exposure, 35 mln- jles. Englarged 27 <<■(■•»•! »^; ^ ■* » ..* » ♦ * * ■* V # X <* • That each of any two fluid or gaseous masses at the instant ofseparation should break up into…
Astronomy
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