Today’s Astronomical Events – March 17th, 2015

The Moon is moving through the stars of Capricornus and there’s a good opportunity to see Earthshine on the waning crescent this morning. Observers in the southern hemisphere get an added bonus – Mercury is an easy target above the eastern horizon. It passes close to Neptune today but the distant world may be too faint to see in the early morning twilight.

(Click on an image to enlarge.)

Images courtesy of Mobile Observatory.



23:32 UT – Mercury appears 1.6° south of Neptune. (Mercury: 83% illuminated, magnitude -0.3, diameter 5.4”. Neptune: magnitude 8.0, diameter 2.2”. Aquarius, not visible.)

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



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.

If you have any comments or questions, please feel free to contact me at astronomywriter “at”

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s