General
The measured distance to the Andromeda Galaxy was doubled in 1953 when it was discovered that there is another, dimmer type of Cepheid. In the 1990s, measurements of both standard red giants as well as red clump stars from the Hipparcos satellite measurements were used to calibrate the Cepheid distances.
Read more about this topic: Andromeda Galaxy
Famous quotes containing the word general:
“The General has dedicated himself so many times, he must feel like the cornerstone of a public building.”
—Adlai Stevenson (1900–1965)
“One general builds his success on ten thousand bleaching bones.”
—Chinese proverb.
“We have seen over and over that white male historians in general have tended to dismiss any history they didn’t themselves write, on the grounds that it is unserious, unscholarly, a fad, too “political,” “merely” oral and thus unreliable.”
—Adrienne Rich (b. 1929)