Newtonian short exposure 'lucky imaging' of M13 (Tim Hawkes)

Celestial hemisphere: Northern · Constellation: Hercules (Her) · Contains: Hercules Globular Cluster · M 13 · NGC 6205

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Newtonian short exposure 'lucky imaging' of M13

Acquisition type: Lucky imaging

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Newtonian short exposure 'lucky imaging' of M13

Acquisition type: Lucky imaging

Newtonian F 5.0, f 1000mm RGB image of M13. A relatively sharp (FWHM 1.62) image integrated from 546 x 2s mono camera exposures was used to provide luminance to a 110 x 20s RGB OSC (FWHM ~ 2.3) image

M13 is a globular cluster located within the keystone asterism of Hercules. It is about 145 light-years in diameter and composed of several hundred thousand stars, the brightest of which is a magnitude 12 red giant, the variable star V11, also known as V1554 Herculis. M13 is 22,200–25,000 light-years distant and is one of the nearest of over a hundred ancient globular clusters that orbit the center of the Milky Way. Compared to the stars in the neighborhood of the Sun, the stars of the M13 population are more than a hundred times more densely packed so much so that they quite frequently collide and produce new young stars the so-called "blue stragglers". Aside from the new blue stragglers the cluster's age has been estimated as 11.66 billion years based on the observed main sequence turn off point from the Hertzprung-Russell diagram.

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Status	Basic success
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Astrometry.net job	7320109
PixInsight job	n/a
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Newtonian short exposure 'lucky imaging' of M13

Newtonian short exposure 'lucky imaging' of M13

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Newtonian short exposure 'lucky imaging' of M13

Newtonian short exposure 'lucky imaging' of M13

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