A Spectre in the Eastern Veil
Image Credit & Copyright: Alfonso Carreño (Observatorio Zonalunar)
Explanation: Frightening forms and scary faces are a mark of the
Halloween season. They also haunt
this cosmic close-up of the eastern
Veil Nebula.
The Veil Nebula itself is a large
supernova remnant, the expanding debris cloud from the death explosion of a
massive star. While the Veil is roughly circular in shape covering nearly 3 degrees on the sky in the constellation
Cygnus, this portion of the eastern Veil spans only 1/2 degree, about the apparent size
of the Moon. That
translates to 12
light-years at the Veil's reassuring estimated distance of 1,400 light-years from planet
Earth. In the composite of image data recorded through
narrow band filters, emission from hydrogen atoms in the remnant is shown in red with strong emission from oxygen atoms in blue-green hues. In the western part of the Veil lies another seasonal apparition,
the Witch's Broom.
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