M 92

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Description: We know this is one of the oldest gobular clusters because it is metal poor, i.e., it has few elements heavier than helium. It is over 12 billion years old. This cluster orbits our own Galaxy, making one revolution every 200 million years. M 92 is visible to the naked eye under good conditions.
Constellation: Hercules
Distance: 27 thousand light years
Apparent Size: 12.2'
Date: 21 june 2006
Equipment: AP 130 @ f/6, ST2000XM, MI-250
Exposure: RGB: 10-10-10 minutes (all unbinned), Astrodon filters