A gentleman in my office is retiring this Friday after 20 years and 20 days in the Air Force. He’s done a little of everything – missiles, satellites, and so on – but in his spare time, he’s an amateur astronomer. I know very little about the field myself, but I was hoping you wise Dopers could direct me to a good gift in the $150 range from a reputable supplier.
Is $150 ludicrously little to spend on a piece of optics?
Will I need to know what equipment he already has, or are there standard doohickeys I can get?
With my woefully inadequate knowledge of this hobby, am I better off getting him a gift certificate?
Also: he attends Burning Man and is also something of a rock hound. Am I barking up the wrong tree trying to get him telescope toys?