Horsehead nebula

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Horsehead nebula

(ˈhɔːsˌhɛd)
n
(Astronomy) astronomy a dark nebula lying in the constellation of Orion and resembling the head of a horse
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
Translations
tête-de-cheval
References in periodicals archive ?
Above center is the Flame Nebula (NGC 2024), with the-Horsehead Nebula (B33) silhouetted in front of bright IC 434. At lower right is M42, the Orion Nebula, and to its north the bluish Running Man Nebula consisting of NGC 1973-1975-1977.
GEMS OF ORION
They're also key reference points for locating the rim of the long, dim nebula IC 434 and the dark Horsehead Nebula intruding across it.
Exploring Orion in depth: with a good chart and guide, your telescope will start to show a lot more than you might have imagined
The Horsehead is a dark nebula overlaying the bright nebula IC 434. E.
Observing the Horsehead Nebula
Caption: BEFORE AND AFTER Compare these shots of reddish IC 434 (which includes the Horsehead Nebula) and the Flame Nebula to its lower left.
Aperture for Camera
The background nebula IC 434, which is illuminated by sigma Orionis, is a strong H-Beta emitter.
Sky notes: 2010 December & 2011 January
The much dimmer glow of IC 434 is west of NGC 2023 and sprawls
Orion beams! Orion hosts many well-known and lesser-known showpieces
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