Wisps like this are all that remain visible of a Milky Way star.
About 9,000 years ago that star exploded in a
supernova leaving the
Veil Nebula, also known as the Cygnus Loop.
At the time, the expanding cloud
was likely as bright as a crescent Moon, remaining
visible for weeks to people living at the dawn of
Today, the resulting supernova remnant
has faded and is
now visible only through a small telescope
constellation of the Swan
The remaining Veil
Nebula is physically huge, however, and even though it lies about 1,400
light-years distant, it covers over five times the size of the
like this of the
complete Veil Nebula,
should be able to identify several of the individual filaments.
A bright wisp at the right is known as the
Witch's Broom Nebula.
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