Jones, H. Spencer (Harold Spencer), 1890- · London E. Arnold & co. · leaf 295
r velocity would decrease withincreasing distance from the planet. We have previously seenhow the motion of a source of light towards or away fromthe observer causes a slight displacement of the spectrallines in the directions of shorter or longer wave-lengthsrespectively, the measurement of the… … Fig. 83.—Spectroscopic Observation of Saturns Rings. shown above the planet. The portion AB of a hue is dueto the planet; the end B, corresponding to the hmb whichis receding from the observer, is displaced relatively to thecentre towards the red, and the end A, corresponding to thelimb which is…
Astronomy
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
