Mitton, G. E. (Geraldine Edith) · London, A. and C. Black · leaf 96
uld not expect tofind anything permanent there, for the markingswould change from day to day, and this they do withthis exception—that this spot, dark red in colour,has been seen for many years, turning as the planetturned. It was first noticed in 1878, and wassupposed to be some great mountain or… … FOUR LARGE WORLDS 71 to say, it has shifted its position a Uttle—that is, ittakes a few seconds longer to get round the planetthan it did at first. A few seconds, you will say, butthat is nothing I It does not seem much, but itshows how marvellously accurate astronomers are.Discoveries of vast…
Astronomy
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
