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Deimos
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Contrast
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Telematics
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Traceability
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Cork oak
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Corrosion
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Google AdWords
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Gavage
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Hydrolysis
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Rachis
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Anti-oncogene
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Macrophage
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PET
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CEPT
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Systematic
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RSPB
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MAC address
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Time stamping
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Giant sequoia
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Monoculture
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Anthrax
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Reducing agent
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MAC layer
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Ceres
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Carbon footprint
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Pipeline
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Canada-France-Hawaii observatory
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Carpal
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Polar bear
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Joint
The Dumbbell nebula
This was the first nebula discovered by MESSIER in 1764.
It also looks like an apple core; what can be seen is the gaseous envelope ejected by a dying star in the centre of the nebula.
M27 is a remarkable object through a pair of binoculars because of its apparent size (half a full Moon) and its brightness (magnitude 7.4).
This is a 35 minute exposure photograph using a CCD camera behind a 15 cm telescope. picture by Chamois.
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