Horsehead Nebula

American  

noun

1. a dark nebula in the constellation Orion, composed of opaque cosmic dust and resembling the head of a horse.

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Horsehead nebula British  

/ ˈhɔːsˌhɛd /

noun

1. astronomy a dark nebula lying in the constellation of Orion and resembling the head of a horse

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Example Sentences

Rising from turbulent waves of dust and gas is the Horsehead Nebula, otherwise known as Barnard 33, which resides roughly 1,300 light-years away.

From Science Daily

Due to its proximity and its nearly edge-on geometry, the Horsehead Nebula is an ideal target for astronomers to study the physical structures of PDRs and the molecular evolution of the gas and dust within their respective environments, and the transition regions between them.

From Science Daily

NASA's James Webb Space Telescope has captured the sharpest infrared images to date of a zoomed-in portion of one of the most distinctive objects in our skies, the Horsehead Nebula.

From Science Daily

The Horsehead Nebula is a well-known photodissociation region, or PDR.

From Science Daily

The Horsehead Nebula, in the constellation Orion, is 1,300 light-years away.

From Seattle Times