Glenn Chaple's observing basics: Jealous Copernicus
March 2005: Circle Friday, March 11 on your Deep Space Mysteries 2005 calendar.
Circle Friday, March 11 on your Deep Space Mysteries 2005 calendar. On that date, you'll have a great opportunity to do something even the famous Polish astronomer Nicolaus Copernicus never did: visually capture the elusive planet Mercury. Even during elongations those infrequent occasions when the planet's orbital motion carries it away from the Sun Mercury can play hard-to-get in the twilight glow.