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I have had a new house built, primarily for my wife (who is tired of
suburbia)--but the upside is that it is under a sixth magnitude sky. We had a brief break in the weather Saturday night, so I drove up to the new house to roll out Big Bertha from the garage. Big Bertha is a 17.5" Dobsonian that reminds you that brute aperture is SOMETIMES an adequate substitute for quality optics. (I have it stopped down to 15" because the Coulter mirror has a turned edge.) The Milky Way was oppressively bright--and it was almost impossible to find most of the constellations because there were suddenly so many other stars distracting me. I have always relied on the "twinkle test" for distinguishing planets from stars. Stars twinkle; planets (except under really awful turbulence) do not. But I could not identify Saturn--because NOTHING was twinkling. I also discovered that I don't have an adequate stepladder to reach the eyepiece for objects more than 45 degrees above the horizon. But M42 was visible--and it was so gloriously bright! I think I will get used to this. |
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