by APOD Robot » Wed May 17, 2023 4:08 am
Sunspot with Light Bridge
Explanation: Why would a small part of the Sun appear slightly dark? Visible is a close-up picture of
sunspots, depressions on the Sun's surface that are
slightly cooler and less bright than the rest of the Sun. The Sun's complex
magnetic field creates these cool regions by inhibiting hot material from entering the spots.
Sunspots can be larger than the Earth and typically last for about a week. Part of active region AR
3297 crossing the
Sun in early May, the large lower sunspot is spanned by an impressive
light bridge of hot and suspended solar gas. This high-resolution picture also shows clearly that the
Sun's surface is a bubbling carpet of separate cells of hot gas. These cells are known as
granules. A
solar granule is about 1000 kilometers across and
lasts for only about 15 minutes.
[url=https://apod.nasa.gov/apod/ap230517.html] [img]https://apod.nasa.gov/apod/calendar/S_230517.jpg[/img] [size=150]Sunspot with Light Bridge[/size][/url]
[b] Explanation: [/b] Why would a small part of the Sun appear slightly dark? Visible is a close-up picture of [url=https://en.wikipedia.org/wiki/Sunspot]sunspot[/url]s, depressions on the Sun's surface that are [url=https://i5.walmartimages.com/asr/c603f47c-58c5-486a-bf37-e2b49a90c683_1.6d76034b23dfb94fd850ac8bd4f51a62.jpeg]slightly cooler[/url] and less bright than the rest of the Sun. The Sun's complex [url=https://www.nasa.gov/feature/goddard/2016/understanding-the-magnetic-sun]magnetic field[/url] creates these cool regions by inhibiting hot material from entering the spots. [url=https://apod.nasa.gov/apod/ap150629.html]Sunspots[/url] can be larger than the Earth and typically last for about a week. Part of active region AR [url=https://spaceweather.com/images2023/07may23/hmi1898.gif]3297[/url] crossing the [url=https://solarsystem.nasa.gov/solar-system/sun/in-depth/]Sun[/url] in early May, the large lower sunspot is spanned by an impressive [url=https://apod.nasa.gov/apod/ap000522.html]light bridge[/url] of hot and suspended solar gas. This high-resolution picture also shows clearly that the [url=https://scied.ucar.edu/learning-zone/sun-space-weather/surface-of-the-sun]Sun's surface[/url] is a bubbling carpet of separate cells of hot gas. These cells are known as [url=https://apod.nasa.gov/apod/ap111106.html]granules[/url]. A [url=https://en.wikipedia.org/wiki/Solar_granule]solar granule[/url] is about 1000 kilometers across and [url=https://apod.nasa.gov/apod/ap200203.html]lasts[/url] for only about 15 minutes.
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