January 8th, about a half hour before sunrise looking west from Tampa, Florida. (Created by the Author in Starry Night).
One of the more unique events of 2011 occurs this weekend. The interior planets of Mercury and Venus both reach greatest western elongation within 24 hours of each other in the dawn skies. First, Venus reaches an elongation of 47° from the Sun on Saturday, January 8th at about 16:00UT/11:00 EST. Then, about 23.6 hours later, Mercury reaches the height of its morning apparition 23° west of the Sun. [Read more...]