Hi Matthieu,
In October we had +5 C to +10 C, higher temperature than normal. The lowest temperature I have tested my equipment at was -15 degrees C. It worked without problem, that time I had the mount at balcony and I sat indoors at +22 C. I'm more sensitive to cold weather. The bad thing with the balcony, Bortle Class 9, very light poluted.
How about temperature at your place at astro season ?
Lars
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