Here's an observation from last summer in the White Mountains, east of the Sierras (elevation 8500')
24" (8/14/15): the "Blue Flash" planetary was observed at 500x and 750x in excellent seeing. ...
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Here's an observation from last summer in the White Mountains, east of the Sierras (elevation 8500')
24" (8/14/15): the "Blue Flash" planetary was observed at 500x and 750x in excellent seeing. ...