Celestial hemisphere:  Northern  ·  Constellation: Hercules (Her)  ·  Contains:  Hercules Globular Cluster  ·  IC 4617  ·  M 13  ·  NGC 6205  ·  NGC 6207
M13 The Great Globular Cluster in Hercules, Dustin Williams
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M13 The Great Globular Cluster in Hercules

M13 The Great Globular Cluster in Hercules, Dustin Williams
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M13 The Great Globular Cluster in Hercules

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Description

About 145 light-years in diameter, M13 is composed of several hundred thousand stars, the brightest of which is a red giant, the variable star V11, also known as V1554 Hercules, with an apparent visual magnitude of 11.95. M13 is 22,200–25,000 light-years away from Earth.

Single stars in this globular cluster were first resolved in 1779. Compared to the stars in the neighborhood of the Sun, the stars of the M13 population are more than a hundred times denser. They are so densely packed together that they sometimes collide and produce new stars. The newly formed, young stars, so-called "blue stragglers", are particularly interesting to astronomers.

Wikipedia

L 61 X 60s

R 97 X 60s

G 97 X 60s

B 68 X 60s

Pretty happy with this one. Average FWHM was 2.1.

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  • M13 The Great Globular Cluster in Hercules, Dustin Williams
    Original
  • M13 The Great Globular Cluster in Hercules, Dustin Williams
    B
  • Final
    M13 The Great Globular Cluster in Hercules, Dustin Williams
    C

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M13 The Great Globular Cluster in Hercules, Dustin Williams