An annular solar eclipse: This Week in Astronomy with Dave Eicher

Viewers in Chile and Argentina will get a chance to see the Moon almost blot out the Sun.
By | Published: September 30, 2024

In this episode, Dave Eicher invites you to observe the annular eclipse that will occur Oct. 2. Annular eclipses occur when the Sun, the Moon, and Earth line up, in that order. But in this case, the Moon is either too far from Earth (so it appears smaller) or Earth is too close to the Sun (so it looks bigger). The result isn’t a total eclipse, but one with a ring of the Sun’s disk around the Moon.


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