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| 01 Apr – Full Moon (22:12EDT)
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| 03 Apr – Mercury (mag 0.4) at greatest elongation west very low in the eastern sky before sunrise
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| 03 Apr – zodiacal light visible in the western sky after evening twilight’s end
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| 04 Apr – Comet C/2026 A1 (MAPS) perihelion, very near the Sun, very low in west at sunset – reaches mag -1??
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| 06 Apr – Fang (mag 2.9) 3.5’ N of Moon’s limb (00:50EDT)
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| 10 Apr – Last Quarter Moon
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| 15 Apr – (4063) Euforbo (mag 16.1) occults TYC 1451-00474-1 (mag11.0) over much of SE Ontario (2050EDT)
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| 15 Apr – (24302) 1999 XP242 (mag 19.2) occults TYC 2477-01033-1 (mag 8.32) over Kingston (2200EDT)
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| 17 Apr – New Moon (0752EDT)
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| 18 Apr – thin crescent (1.5d old) Moon 6º right of Venus (mag -3.9) during evening twilight
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| 22 Apr – Lyrid meteor shower peaks midafternoon, best midnight-dawn and again starting late evening; minor shower, ~15 meteors/hour
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| 23 Apr –
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| 23 Apr – First Quarter Moon
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| 25 Apr – Moon narrowly misses Regulus by 2 arcmin (21:00EDT)
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| 26 Apr – Comet C/2025 R3 (PANSTARRS) at perihelion just south of Sun, – reaches mag -1??probably invisible
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| 01 May – Full Moon (13:23EDT)
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| 06 May – η (eta) Aquariid meteor shower peaks, minor shower badly affected by moonlight
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| 08 May – Double shadow transit on Jupiter (20:50EDT)
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| 09 May – Last Quarter Moon
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| 15 May – Double shadow transit on Jupiter very low in west (23:20EDT)
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| 16 May – New Moon (16:01EDT)
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| 18 May – Earthlit crescent Moon 3° right of gibbous Venus (mag -3.9)
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| 19 May – Earthlit crescent Moon between Venus (mag -3.9) and Jupiter (mag -1.9)
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| 23 May – First Quarter Moon
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| 23 May – Callisto and Io both transiting Jupiter (22:20EDT)
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| 29 May – (29) Amphitrite (mag 9.5) at opposition
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| 30 May – (21) Lutetia (mag 9.8) at opposition
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| 31 May – Full Moon (04:45EDT)
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| 31 May – Venus attains greatest altitude at end of nautical twilight
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