May
6
Fri
Eta Aquarids Meteor Shower
May 6 all-day

Smack dab on the new moon, this promises to be nice dark viewing. These shooting stars are composed of the remnants of Comet Halley. Meteors—up to 30 per hour in the Northern Hemisphere and 60 per hour in the Southern—will appear to radiate from Aquarius.

May
7
Sat
Astronomy Day @ Sky Meadows State Park
May 7 all-day

Head over to the Astronomy Day page for more information.

May
9
Mon
Transit of Mercury Across the Sun
May 9 all-day

A superstar event for 2016: Elusive Mercury, one of the most difficult planets to view, will be out in broad daylight—literally! Look through a telescope equipped with a suitable solar filter and you’ll be able to view tiny Mercury transit across the surface of the Sun. This rare celestial event will be visible throughout much of the world, but observers along the eastern coasts of the Americas will get the best view.

May
13
Fri
☽ First Quarter Moon
May 13 @ 11:02 am – 11:02 am
May
21
Sat
Blue Moon (seasonal)
May 21 all-day

The third full moon in a season of four full moons.

⚪ Full Moon
May 21 @ 3:15 pm – 3:15 pm
May
22
Sun
Mars at Opposition
May 22 all-day

Today marks when Mars will be nearest to Earth in 2016. Try viewing Mars in a large telescope to see if you can spot its polar ice caps or any of the darker regions on the rusty-red surface…

May
23
Mon
Mercury Retrograde Ends
May 23 all-day

see http://cantonbecker.com/retrograde for details…

May
29
Sun
☾ Last Quarter Moon
May 29 @ 6:12 am – 6:12 am
Jun
3
Fri
Saturn at Opposition
Jun 3 all-day

Saturn rules the summer sky, but on this night, the ringed planet truly takes center stage. When it reaches opposition, Saturn will be bright and fully illuminated by the Sun. You may even notice that its rings look brighter than usual thanks to a phenomenon known as the Seeliger Effect. Take it all in! Saturn’s rings will be visible in even small aperture telescopes.