Today’s Astronomical Events – January 17th, 2015

There’s a good opportunity to see Earthshine on the waning crescent Moon this morning. Earthshine is when the unlit portion of the Moon is illuminated by light reflected from the daylight side of the Earth, thereby making the whole of the Moon visible.

(Click on an image to enlarge.)

Images Courtesy of Mobile Observatory.



18:57 UT – Asteroid 4 Vesta is at apogee. Distance to Earth: 3.170 AU (Magnitude 7.5. Sagittarius, not visible.)

Good opportunity to see Earthshine on the waning crescent Moon before sunrise. (Pre-dawn sky. See image above.)

The constellation Lynx (the Lynx) culminates at midnight tonight. (All night.)



Events in bold involve objects and/or events that are easily visible with the naked eye.

All times are in Universal Time (UTC). To convert the time to your timezone, click here.


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.

Details of all available books across the world can be found here or by visiting the author’s page on Amazon.


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