NIGHT OVER ONTARIO
Pictures have appeared on the cover and inside editions of SkyNews magazine and in Sky & Telescope and Astronomy magazine, and as NASA's Astronomy Picture of the Day.
“ Had I the heavens' embroidered cloths,
Enwrought with golden and silver light,
The blue and the dim and the dark cloths
Of night and light and the half light,”
W.B.Yeats
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Witch's Broom Nebula NGC 6960
Ha 6x15m 1x1, OIII 6x15m 1x1 imaged with TEC 140 @f5.3 and ML 8300 camera.
Imaged by Lynn Hilborn, WhistleStop Obs, Grafton, Ontario August 3, 2013
***Published in Astronomy Magazine, March 2014
Ten thousand years ago, before the dawn of recorded human history, a new light must suddenly have appeared in
the night sky and faded after a few weeks. Today we know this light was an exploding star and record the
colorful expanding cloud as the Veil Nebula. Pictured above is the west end of the Veil Nebula known
technically as NGC 6960 but less formally as the Witch's Broom Nebula. The expanding debris cloud gains its
colors by sweeping up and exciting existing nearby gas. The supernova remnant lies about 1400 light-years away
towards the constellation of Cygnus. This Witch's Broom actually spans over three times the angular size of the
full Moon. The bright star 52 Cygni is visible with the unaided eye from a dark location but unrelated to the
ancient supernova. Text from APOD, Astronomy Photo of the Day.