First Quarter Moon
The First Quarter Moon occurs on April 19th - it is visible high in the southern sky in early evening.
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Astronomical Events
Lyrids Meteor Shower
Peak: ~Apr 21-22, 2020 The Lyrids are a medium strength shower that usually produces good rates for three nights centered on the maximum. These meteors also usually lack persistent trains […]
Mercury at Perihelion
Mercury's 88-day orbit around the Sun will carry it to its closest point to the Sun – its perihelion – at a distance of 0.31 AU from the Sun.
Full Moon
The Full Moon rises at sunset, is visible high in the sky around midnight, and is visible all night.
Moon at Perigee
Supermoon: Full Moon at the Moon's perigee - the Moon's closest point to Earth in its monthly orbit.
Conjunction of Uranus & the Sun
Uranus will pass close to the Sun in the sky as its orbit carries it around the far side of the solar system from the Earth.
Last Quarter Moon
The Moon is at Last Quarter (or Third Quarter) - rising around midnight, and visible to the south after sunrise.
Eta-Aquariid Meteor Shower
The Eta Aquariids are a strong shower when viewed from the southern tropics. From the equator northward, they usually only produce medium rates of 10-30 per hour just before dawn. […]
Conjunction Moon and Jupiter
The Moon appears near the planet Jupiter in the southeastern predawn sky on this date.
New Moon
New Moon. By the modern definition, New Moon occurs when the Moon and Sun are at the same geocentric ecliptic longitude. The part of the Moon facing us is completely […]
Moon at Apogee
The Moon’s distance from Earth varies throughout its monthly orbit because the Moon’s orbit isn’t perfectly circular. Every month, the Moon’s eccentric orbit carries it to apogee – its most distant point from […]
Astronomy Day
Astronomy Day is an international event observed each fall and spring near the first quarter Moon. Local astronomical societies, planetariums, museums, and observatories sponsor public viewing sessions, presentations, workshops, and […]