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Amateur Telescope Makers of Boston
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May Sky

Tue 2
First Quarter Moon at 10:47pm EDT
Sat 6
The Eta Aquariid meteors reach peak activity this morning.
Sun 7 Jupiter and a waxing gibbous Moon appear together in the early evening sky.
Wed 10 Full (Flower) Moon at 5:42pm EDT
Thu 11
Double Shadow Transit on Jupiter, beginning at 9:59pm EDT
Sat/Sun
13/14
Saturn and a waning gibbous Moon are side-by- side on these mornings.
Wed 17 Mercury at Greatest Western (Morning) Elongation
Thu 18 Last Quarter Moon at 8:33pm EDT
Double Shadow Transit on Jupiter, beginning at 11:54pm EDT
Mon 22
Venus and a waning crescent moon shine together in the predawn sky. Look east one-half hour before sunrise.
Thu 25 New Moon at 3:44pm EDT
Fri 26 Double Shadow Transit on Jupiter, beginning at 1:47am EDT

Mercury reaches Greatest Western (Morning) elongation around mid-month, but is poorly placed for northern hemisphere observers.

Venus rises two hours before the rising sun, dominating the eastern predawn sky.

Mars continues its race with the setting sun, appearing low in the WNW after sunset. Early in the month, it shines near the slightly brighter Aldebaran.

Jupiter, in Virgo, is well placed for observing all night long. Look for several double shadow transits of Jupiter’s moons this month.

Saturn, which moves from Sagittarius into Scorpius this month, appears above the SSW horizon before sunrise.