Annual showers, moon phases, craters, and mares.
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- When do the Quadrantids meteor shower peak?
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Early January, around January 3-4
- What is the first phase of the lunar cycle called?
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New Moon
- Which large lunar crater is characterized by prominent rays radiating from its center?
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Tycho
- Mare Imbrium is the largest what on the Moon?
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Dark flat region, or mare (impact basin)
- In which month does the Perseid meteor shower peak?
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August, around August 11-13
- During which phase can you see roughly half of the lit side of the Moon?
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First Quarter or Last Quarter
- Copernicus crater is notable for which feature?
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Its terraced walls and central peaks
- What is Mare Tranquillitatis?
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The dark region where Apollo 11 landed
- When does the Leonids meteor shower peak?
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Mid-November, around November 17-18
- How long is a complete lunar cycle from one New Moon to the next?
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Approximately 29.5 days, called the synodic month
- Which lunar crater appears brightest on the lunar surface?
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Aristarchus
- Mare Serenitatis is located where on the Moon?
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In the northeastern region
- The Geminids meteor shower peaks in which month?
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December, around December 13-14
- What is the lunar terminator?
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The boundary line between the illuminated and dark portions of the Moon
- What is the largest crater visible on the Moon from Earth?
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Clavius