by APOD Robot » Tue Sep 13, 2022 4:06 am
A Long Snaking Filament on the Sun
Explanation: Earlier this month, the Sun exhibited one of the longer filaments on record. Visible as the bright curving streak around the image center, the snaking filament's full extent was estimated to be over half of the
Sun's radius -- more than 350,000 kilometers long. A filament is composed of
hot gas held aloft by the Sun's magnetic field, so that viewed from the side it would appear as a
raised prominence. A different, smaller prominence is simultaneously visible at the Sun's edge. The
featured image is in false-color and color-inverted to highlight not only the
filament but the Sun's
carpet chromosphere. The bright dot on the upper right is actually a
dark sunspot about the
size of the Earth. Solar
filaments typically last from hours to days, eventually collapsing to return hot
plasma back to the Sun. Sometimes, though, they
explode and
expel particles into the
Solar System, some of which trigger
auroras on Earth. The
pictured filament appeared in early September and continued to
hold steady for about a week.
[url=https://apod.nasa.gov/apod/ap220913.html] [img]https://apod.nasa.gov/apod/calendar/S_220913.jpg[/img] [size=150]A Long Snaking Filament on the Sun[/size][/url]
[b] Explanation: [/b] Earlier this month, the Sun exhibited one of the longer filaments on record. Visible as the bright curving streak around the image center, the snaking filament's full extent was estimated to be over half of the [url=https://solarsystem.nasa.gov/solar-system/sun/in-depth/]Sun[/url]'s radius -- more than 350,000 kilometers long. A filament is composed of [url=https://apod.nasa.gov/apod/ap120820.html]hot gas held aloft[/url] by the Sun's magnetic field, so that viewed from the side it would appear as a [url=https://apod.nasa.gov/apod/ap140304.html]raised prominence[/url]. A different, smaller prominence is simultaneously visible at the Sun's edge. The [url=https://avertedimagination.com/img_pages/great_wall_2022.html]featured image[/url] is in false-color and color-inverted to highlight not only the [url=https://apod.nasa.gov/apod/ap150210.html]filament[/url] but the Sun's [url=https://apod.nasa.gov/apod/ap971106.html]carpet[/url] [url=https://en.wikipedia.org/wiki/Chromosphere]chromosphere[/url]. The bright dot on the upper right is actually a [url=https://apod.nasa.gov/apod/ap150629.html]dark sunspot[/url] about the [url=https://solarsystem.nasa.gov/solar-system/sun/by-the-numbers/]size of the Earth[/url]. Solar [url=http://en.wikipedia.org/wiki/Solar_prominence]filaments[/url] typically last from hours to days, eventually collapsing to return hot [url=https://en.wikipedia.org/wiki/Plasma_(physics)]plasma[/url] back to the Sun. Sometimes, though, they [url=https://apod.nasa.gov/apod/ap190526.html]explode[/url] and [url=https://apod.nasa.gov/apod/ap180902.html]expel particles[/url] into the [url=https://solarsystem.nasa.gov/solar-system/our-solar-system/overview/]Solar System[/url], some of which trigger [url=https://apod.nasa.gov/apod/ap220322.html]auroras[/url] on Earth. The [url=https://spaceweathergallery.com/indiv_upload.php?upload_id=188146]pictured filament[/url] appeared in early September and continued to [url=https://media.istockphoto.com/photos/cute-kitten-hanging-on-to-rope-isolated-on-white-picture-id152959821]hold steady[/url] for about a week.
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