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DTSTART;TZID=America/Toronto:20250705T190000
DTEND;TZID=America/Toronto:20250705T220000
DTSTAMP:20260501T063152
CREATED:20250626T184055Z
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UID:19978-1751742000-1751752800@www.hamiltonrasc.ca
SUMMARY:Sinus Iridum’s Golden Handle (evening)
DESCRIPTION:On Saturday night\, July 5\, the terminator on the waxing gibbous moon will fall just west of Sinus Iridum\, the Bay of Rainbows. The circular 155 mile (249 km) diameter feature is a large impact crater that was flooded by the same basalts that filled the much larger Mare Imbrium to its east – forming a rounded handle-shape on the western edge of that mare. The “Golden Handle” effect is produced by way the slanted sunlight brightly illuminates the eastern side of the prominent Montes Jura mountain range surrounding the bay on the north and west\, and by a pair of protruding promontories named Heraclides and Laplace to the south and north\, respectively. Sinus Iridum is almost craterless\, but hosts a set of northeast-oriented dorsae or “wrinkle ridges” that are revealed at this phase. (Image – Jul05-2025 at 10 pm – Sinus Iridum’s Golden Handle.jpg)
URL:https://www.hamiltonrasc.ca/event/sinus-iridums-golden-handle-evening/
CATEGORIES:Astronomical Events
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