List of events in sky this month – May 2017:
1 – Comet C/2015 ER61 (PANSTARRS) at its brightest.
4 – The Moon occults Regulus at 10:14UT, event visible from Australia.
6 – The Eta Aquarid Meteor Shower peak at ~2UT with the ZHR up to 50 meteors in dark location.
8 – Jupiter pases less than 3 degrees from Moon.
10 – Full Moon.
14 – Pluto pases less than 2 degrees from Moon.
18 – Mercury at Greatest eastern Elongation. It reaches elongation 26 degree west of the Sun in the dawn sky. The best time to observe Mercury as it located as far as possible from the Sun.
20 – Neptune pases less than half a degree from Moon.
25 – New Moon.
Jupiter and its moons – shadow transit season begins this month.