by APOD Robot » Mon Nov 02, 2015 5:09 am
[img]http://apod.nasa.gov/apod/calendar/S_151102.jpg[/img] Comet ISON Being Destroyed by the Sun
Explanation: Most comets don't survive a close encounter with the Sun. Two years ago this month, though,
Comet ISON was thought by some to be big enough to withstand its perilous sungrazing dive. The
featured video shows the drama as it was recorded by NASA's
Solar and Heliospheric Observatory (SOHO) satellite. As many
Earthlings watched in fascination, a bright area
did emerge from closest approach, but it
soon faded and dispersed. It is now assumed that no large fragments of
Comet C/2012 S1 (ISON) survived. Besides the comet, the active Sun is seen to eject puffs of
plasma known as
coronal mass ejections. Launched in 1995,
sun-orbiting SOHO has become a historic device in the discovery and tracking of comets known as
sungrazers. Two months ago, a comet designated
SOHO 3000 was named in honor of the
record 3000th comet that was
discovered on SOHO images, a total that amounts to about half of all known comets.
[/b]
[url=http://apod.nasa.gov/apod/ap151102.html][img]http://apod.nasa.gov/apod/calendar/S_151102.jpg[/img] [size=150]Comet ISON Being Destroyed by the Sun[/size][/url]
[b] Explanation: [/b] Most comets don't survive a close encounter with the Sun. Two years ago this month, though, [url=http://apod.nasa.gov/apod/%20http://www.nasa.gov/mission_pages/asteroids/comet_ison/]Comet ISON[/url] was thought by some to be big enough to withstand its perilous sungrazing dive. The [url=http://sohowww.nascom.nasa.gov/hotshots/2013_11_28/%20(ISON%20video)]featured[/url] [url=https://www.youtube.com/watch?v=8L54gUQTqko]video[/url] shows the drama as it was recorded by NASA's [url=http://sohowww.nascom.nasa.gov/about/about.html]Solar and Heliospheric Observatory[/url] (SOHO) satellite. As many [url=http://www.smcubedconsulting.com/images/audience.jpg]Earthlings watched[/url] in fascination, a bright area [url=http://apod.nasa.gov/apod/ap131130.html]did emerge[/url] from closest approach, but it [url=http://www.slate.com/blogs/bad_astronomy/2013/12/01/comet_ison_post_mortem.html]soon faded[/url] and dispersed. It is now assumed that no large fragments of [url=https://en.wikipedia.org/wiki/Comet_ISON]Comet C/2012 S1[/url] (ISON) survived. Besides the comet, the active Sun is seen to eject puffs of [url=http://science.nasa.gov/science-news/science-at-nasa/1999/ast07sep99_1/]plasma[/url] known as [url=https://en.wikipedia.org/wiki/Coronal_mass_ejection]coronal mass ejections[/url]. Launched in 1995, [url=http://soho.nascom.nasa.gov/about/orbit.html]sun-orbiting SOHO[/url] has become a historic device in the discovery and tracking of comets known as [url=http://apod.nasa.gov/apod/ap131027.html]sungrazers[/url]. Two months ago, a comet designated [url=http://www.nrl.navy.mil/media/news-releases/2015/3000th-sungrazer-comet-imaged-by-nrl-space-instrument-lasco]SOHO 3000[/url] was named in honor of the [url=https://www.nasa.gov/image-feature/3000th-comet-spotted-by-solar-and-heliospheric-observatory-soho]record 3000th comet[/url] that was [url=http://www.britastro.org/projectalcock/Finding%20comets%20on%20SOHO%20images.htm]discovered on SOHO[/url] images, a total that amounts to about half of all known comets.
[b][table][tr][td=left][url=http://asterisk.apod.com/discuss_apod.php?date=151101]<< Previous APOD[/url][/td] [td=center][url=http://asterisk.apod.com/view_retro.php?date=1102]This Day in APOD[/url][/td] [td=right][url=http://asterisk.apod.com/discuss_apod.php?date=151103]Next APOD >>[/url][/td][/tr][/table][/b]