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Winter seeing in the suburbs
I am in the suburbs of Melbourne Australia in my first year of having a telescope. Is the seeing always so rotten in winter? Viewing Mars at just 200x looks like a red marble at the bottom of a pot of boiling water. In the warmer months a while ago I got the occasional good glimpse of Jupiter in short periods of good seeing but now viewing Mars seems hopeless! Would the heaters in houses in my street be the cause of this? |
#2
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Winter seeing in the suburbs
Also make darn sure that your scope has cooled down to the ambient
outside air temperature before critical observing.... also never hurts to re-check collimation on set up.....also, if using a truss-type, make sure your own body heat is not entering the optical line while observing. Set up on a grassy field, not asphalt or cement...and as you stated, don't look over houses or buildings where daytime heat can re-radiate back off the roof at night. FWIW, Tom W. Geoff wrote: I am in the suburbs of Melbourne Australia in my first year of having a telescope. Is the seeing always so rotten in winter? Viewing Mars at just 200x looks like a red marble at the bottom of a pot of boiling water. In the warmer months a while ago I got the occasional good glimpse of Jupiter in short periods of good seeing but now viewing Mars seems hopeless! Would the heaters in houses in my street be the cause of this? |
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Winter seeing in the suburbs
Al wrote:
Usually the viewing is much better during the cold winter months than summer. Not here in Southern California. Our worst seeing occurs in winter. I think generalizations about this are impossible since it varies with climate and location. Mike Simmons |
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