The waning gibbous Moon is approaching the bright star Spica in the pre-dawn sky. It’ll be closer still tomorrow morning. Take a look and then come back tomorrow to see the difference.
(Click on an image to enlarge.)
Images Courtesy of Mobile Observatory.
16:18 UT – The waning gibbous Moon passes Spica. (Virgo, pre-dawn sky.)
Mercury brightens to magnitude 1.0. (23% illuminated, diameter 9.2”. Capricornus, not visible.)
Learn more about every upcoming astronomical event in 2015 An Astronomical Year (Kindle eBook) and The Astronomical Almanac (2015-2019) (Kindle eBook) and The Astronomical Almanac (2015-2019) (Paperback Edition).
The Amateur Astronomer’s Notebook allows astronomers to log 150 observing sessions and includes an appendix of hundreds of suggested deep sky objects.