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2
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Last Quarter Moon at 0:51 UT.
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3
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Jupiter at opposition at 15h UT (mag. -2.5). The best time to observe the largest planet in the solar system. A small telescope will easily reveal its four largest moons and major cloud bands.
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4
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Moon at perigee (closest to Earth) at 11h UT (distance 368,492 km; angular size 32.4').
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8
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Total-Annular Eclipse of the Sun along a very narrow path across Costa Rica, Panama, Columbia, and Venezuela from 22:09 to 22:18 UT.
Partial solar eclipse visible from the southern United States, all of Central America, and parts of Southern America. WARNING: NEVER LOOK AT THE SUN -- it will instantly damage your eyes!
Use a pinhole in a large card to project the Sun's image onto a surface.
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8
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New Moon at 20:32 UT. Beginning of lunation 1018.
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11
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Moon near the Pleiades at 23h UT (evening sky).
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16
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Astronomy Day 2005 is today! Astronomy clubs, planetariums, observatories, and science museums worldwide will offer a variety of public activities including free night sky viewing sessions.
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16
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First Quarter Moon at 14:38 UT.
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16
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Moon at apogee (furthest from Earth) at 19h UT (distance 404,304 km; angular size 29.6').
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22
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Lyrid meteor shower peaks at 10h UT. Active between April 16-25. The radiant is located between Hercules and Lyra. Expect between 10 to 20 bright, fast meteors per hour at its peak.
Unfortunately, bright moonlight will greatly hinder viewing this year.
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22
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Moon very near Jupiter at 17h UT (evening sky). Occultation visible from southern Africa.
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24
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Full Moon at 10:07 UT. The full Moon of April is called the "Grass Moon" or "Egg Moon".
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26
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Mercury at greatest elongation, 27° west from the Sun (morning sky) at 16h UT. Not favorable for mid-northern latitudes.
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26
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Moon very near Antares at 23h UT (morning sky). Occultation visible along a wide path from northern Africa to India.
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29
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Moon at perigee (closest to Earth) at 10h UT (distance 369,029 km; angular size 32.4').
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All times Universal Time (UT). (USA Eastern Summer Time = UT 4 hours)
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