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Credit & Copyright: Robert Gendler
Explanation:
It's easy to get lost following the intricate filaments in this
detailed
image of faint
supernova remnant Simeis 147.
Seen towards the constellation
Taurus
it covers nearly 3 degrees (6
full moons) on the sky corresponding to a width of 150 light-years at
the stellar debris cloud's estimated distance of 3,000 light-years.
The color composite image includes eight hours of exposure time
with an H-alpha filter, transmiting only
the light from recombining hydrogen atoms in the expanding
nebulosity and tracing the regions of
shocked, glowing gas.
This supernova remnant has an apparent age of about 100,000
years - meaning light from the massive stellar explosion first
reached Earth 100,000 years ago - but this 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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NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
Based on Astronomy Picture
Of the Day
Publications with keywords: supernova remnant - H-alpha - pulsar
Publications with words: supernova remnant - H-alpha - pulsar
See also:
- Supernova Remnant Cassiopeia A
- APOD: 2025 January 8 Á Supernova Remnants Big and Small
- APOD: 2024 September 18 Á The Mermaid Nebula Supernova Remnant
- Supernova Remnant CTA 1
- APOD: 2024 July 23 Á The Crab Nebula from Visible to X Ray
- APOD: 2024 April 16 Á Filaments of the Vela Supernova Remnant
- APOD: 2024 April 3 Á Unusual Nebula Pa 30