Solar and lunar eclipses, meteor showers, and other recurring celestial events.
30 cards · basic cards · AI-written, checked twice. Edit anything.
- What is a total solar eclipse?
- When the Moon completely blocks the Sun's disk, casting a shadow on Earth.
- What is an annular solar eclipse?
- When the Moon is too far from Earth to completely cover the Sun, leaving a bright ring visible.
- What is a partial solar eclipse?
- When the Moon blocks only part of the Sun's disk as seen from Earth.
- What is a total lunar eclipse?
- When the Moon passes completely into Earth's umbra, blocking all direct sunlight from reaching it.
- What is a partial lunar eclipse?
- When only part of the Moon passes through Earth's umbra.
- What is a penumbral lunar eclipse?
- When the Moon passes through Earth's penumbra, causing only a subtle dimming.
- Why does the Moon appear red during a total lunar eclipse?
- Earth's atmosphere bends red light onto the Moon while blocking blue light, a phenomenon called Rayleigh scattering.
- What is the Saros cycle?
- A period of 18 years, 11 days, and 8 hours after which eclipses repeat in a similar pattern.
- How long does a total solar eclipse typically last?
- Between two and seven minutes, depending on the Moon's distance and Earth's location.
- How long can a total lunar eclipse last?
- Up to one hour and 47 minutes, significantly longer than a solar eclipse.
- On what date does the Perseid meteor shower typically peak?
- Mid-August, usually around August 11-13.
- On what date does the Geminids meteor shower typically peak?
- Mid-December, usually around December 13-14.
- On what date does the Quadrantids meteor shower typically peak?
- Early January, usually around January 3-4.
- On what date does the Leonids meteor shower typically peak?
- Mid-November, usually around November 17-18.
- What is a meteor?
- A piece of rock or dust from space that enters Earth's atmosphere and burns up, creating a bright streak.