May Night Skies
A brief overview of what to see in the sky with the unaided eye during May evenings:
Stars and Constellations
● Some prominent constellations visible in the evening sky are Bootes, Corona Borealis and Hercules
● Follow the ‘handle’ stars of the Big Dipper star group southward to the star Arcturus in Bootes. Arcturus and Bootes continue to be prominent most of the night
● Arcturus is a bright (first magnitude) orange star nearly overhead during spring evenings
● Corona Borealis is a distinct (in dark skies) “C” shaped group of stars east of (or below) Bootes
● Hercules is also a reasonably distinct constellation surrounding a “keystone” shaped group of stars east of Corona Borealis
● The bright constellation Leo is high in the western sky during spring evenings
Planets
● Mercury is practically not visible during May, very low above the eastern horizon near sunrise and close to the sun
● Venus shines brightly in the eastern pre-dawn sky
● Mars is visible high in the western sky after sunset in the Cancer constellation
● Jupiter is visible low in the western sky after sunset in the Taurus constellation and sets several hours after sunset
● Saturn is visible low in the eastern pre-dawn sky in the Pisces constellation and near Venus during the first week of May
Moon Phases
● First Quarter Moon May 4, 09:52 EDT
● Full Moon May 12, 12:56 EDT
● Last Quarter Moon May 20, 07:59 EDT
● New Moon May 26, 23:02 EDT
Noteworthy Sky Events
● May 5-6: Eta Aquarid meteor shower peaks, but it remains active until late May
● May 22-23: thin crescent moon very close to Saturn and Venus in pre-dawn eastern sky
Sky-watching Resources Online
Some website resources for sky charts, weekly sky events, and more information:
● astrogeo.ca/skylights
● www.heavens-above.com
● In-the-sky.org
● www.skyandtelescope.org
● www.skymaps.com
Star Chart for mid-May, mid-evening (courtesy of www.heavens-above.com):