by APOD Robot » Mon Apr 25, 2016 4:06 am
Supernova Remnant Simeis 147: The Spaghetti Nebula
Explanation: It's easy to get lost following the intricate strands of the Spaghetti Nebula. A
supernova remnant cataloged as Simeis 147 and Sh2-240, the glowing gas filaments cover nearly 3 degrees -- 6 full moons -- on the sky. That's about 150
light-years at the stellar debris cloud's estimated distance of 3,000 light-years.
This sharp composite includes image data taken through a narrow-band filter to highlight emission from hydrogen atoms tracing the
shocked, glowing gas. The
supernova remnant has an estimated age of about 40,000 years, meaning light from the massive
stellar explosion first reached Earth about
40,000 years ago. But the
expanding remnant is not the only
aftermath. The cosmic catastrophe
also left behind a spinning neutron star or pulsar,
all that remains of the original star's core.
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[url=http://apod.nasa.gov/apod/ap160425.html][img]http://apod.nasa.gov/apod/calendar/S_160425.jpg[/img] [size=150]Supernova Remnant Simeis 147: The Spaghetti Nebula[/size][/url]
[b] Explanation: [/b] It's easy to get lost following the intricate strands of the Spaghetti Nebula. A [url=http://chandra.harvard.edu/xray_sources/supernovas.html]supernova remnant[/url] cataloged as Simeis 147 and Sh2-240, the glowing gas filaments cover nearly 3 degrees -- 6 full moons -- on the sky. That's about 150 [url=https://www.grc.nasa.gov/www/k-12/Numbers/Math/Mathematical_Thinking/how_long_is_a_light_year.htm]light-years[/url] at the stellar debris cloud's estimated distance of 3,000 light-years. [url=https://www.flickr.com/photos/133259498@N05/24711480700/in/dateposted-public/]This sharp composite[/url] includes image data taken through a narrow-band filter to highlight emission from hydrogen atoms tracing the [url=http://apod.nasa.gov/apod/ap090108.html]shocked, glowing gas[/url]. The [url=https://www.nasa.gov/multimedia/imagegallery/image_feature_684.html]supernova remnant[/url] has an estimated age of about 40,000 years, meaning light from the massive [url=https://www.youtube.com/watch?v=aysiMbgml5g]stellar explosion[/url] first reached Earth about [url=https://en.wikipedia.org/wiki/Upper_Paleolithic]40,000 years ago[/url]. But the [url=http://apod.nasa.gov/apod/ap011227.html]expanding remnant[/url] is not the only [url=http://apod.nasa.gov/apod/ap011026.html]aftermath[/url]. The cosmic catastrophe [url=http://arxiv.org/abs/astro-ph/0611068]also left behind[/url] a spinning neutron star or pulsar, [url=http://hubblesite.org/newscenter/newsdesk/archive/releases/1996/22/astrofile/#2]all that remains[/url] of the original star's core.
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