Tracking sunspots with a telescope 

追加: 2026-05-16

[00:00:00]This is the Sun, and these are sunspots.

[00:00:02][music] They're cooler regions where intense magnetic fields suppress heat rising from below the Sun's surface.

[00:00:09]They can last [music] for days to months, and they're sometimes much bigger than the Earth.

[00:00:13]You never want to point a telescope at the Sun without a proper solar filter.

[00:00:17]With the right equipment, you can safely observe [music] its sunspots yourself.

[00:00:21]NASA releases daily images of the Sun that you can use to identify and track sunspots as the Sun rotates.

[00:00:28]It's astronomy in the daytime.