Results 1-3 of 88
And at this time , an English scientist noted a ities . few dark lines in the solar spectrum , which was studied in Line ... of which ed in determining accurate radial velocities of many stars ments are still called “ Fraunhofer lines .
Sometimes several lines are seen that correspond to but such differences are readily resolvable on mediumdifferent radial velocities , implying that two or more and high - dispersion spectrograms . Much effort has also clouds are moving ...
ing mechanism must operate to slow them to velocities as be obtained from the relative intensities of suitable lines modest as that of the Sun. of an atom , of an atom and its ion , or even of lines of Velocities in the line of sight ...
What people are saying - Write a review
LibraryThing ReviewUser Review - keylawk - LibraryThing
This is the 198215th Edition, in two halves, with the Macropaedia and the Micropaedia. First published in 1768, the publisher is the oldest English-language encyclopedia still in print. Two Scottish ... Read full review