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Old 11-10-2020, 05:06 PM
Renato1 (Renato)
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Renato1 is offline
 
Join Date: Mar 2014
Location: Frankston South
Posts: 1,283
Firstly - let your telescope cool down outside for half an hour - can make a big difference to sharpness.


Secondly - make sure you aren't looking over someone's house with lots of heating going on in it. If necessary, wait several hours till Mars moves further along the sky. Similarly, if stars are twinkling a lot, don't expect sharp views.

Thirdly - use a red filter, or put red cellophane over your eyepiece. Markings on Mars easily show up. Then - strangely - after awhile you may find like I did that I could spot the markings on what previously looked like a white blob.

Some years there are dust storms on Mars, and you can't see anything much no matter what you do.

Good luck.
Regards,
Renato
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