Tag: Heizung
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"Pan Tau" – or the unobstructed view of space
Dew is always a problem in astronomical observations. Here is a description of how to build a secondary mirror heater for Newtonian telescopes so that the dew no longer has a chance.
Dew is always a problem in astronomical observations. Here is a description of how to build a secondary mirror heater for Newtonian telescopes so that the dew no longer has a chance.