Distance Measurements
Low levels of H I gas prevents using the Tully-Fisher relation to estimate the distance to Messier 90.
Read more about this topic: Messier 90
Famous quotes containing the word distance:
“The rage for road building is beneficent for America, where vast distance is so main a consideration in our domestic politics and trade, inasmuch as the great political promise of the invention is to hold the Union staunch, whose days already seem numbered by the mere inconvenience of transporting representatives, judges and officers across such tedious distances of land and water.”
—Ralph Waldo Emerson (1803–1882)