Not a great
deal has changed in the 259 years since its discovery by French astronomer
Charles Messier, M12 is a densely packed cluster of hundreds of thousands of the
galaxies very oldest stars estimated to be over 13 billion years old, bound by
gravity this cluster is 75 light years in diameter or about 435 trillion miles in
length in comparison that would be approx. 74,000 yes seventy four thousand
times the size of our own solar system of planets.
It took the
new horizons probe 9.5 years to get to Pluto so that would mean it would take another
seven hundred thousand years before it arrives at the majestic M12.
This image is an RGB combination of 20 x 120 second exposures using all 3 filters so a total of 2 hours combined data, processed in PI.
Considering this for me is very low down and just above the fence line I am very pleased with the result.
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