Celestial hemisphere:  Northern  ·  Constellation: Vulpecula (Vul)  ·  Contains:  Dumbbell Nebula  ·  M 27  ·  NGC 6853  ·  The star 14 Vul
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Dumbbell Nebula, Samuel
Dumbbell Nebula
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Dumbbell Nebula

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Dumbbell Nebula, Samuel
Dumbbell Nebula
Powered byPixInsight

Dumbbell Nebula

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Description

The Dumbbell Nebula appears shaped like a prolate spheroid and is viewed from our perspective along the plane of its equator. In 1992, Moreno-Corral et al. computed that its rate of expansion angularly was, viewed from our distance, no more than 2.3 arcseconds (″) per century. From this, an upper limit to the age of 14,600 years may be determined. In 1970, Bohuski, Smith, and Weedman found an expansion velocity of 31 km/s. Given its semi-minor axis radius of 1.01 ly, this implies that the kinematic age of the nebula is 9,800 years.[5][7]
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R(Ha) + G(Ha*0.20+OIII*0.80) + B(OIII)

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Dumbbell Nebula, Samuel

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Nebulae