Quote:
Originally Posted by Atmos
I have heard of the first 3m as being seeing mess due to the IR emission of the Earth but it isn’t something often discussed.
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Absolutely Colin - it's an incredible source of radiated heat. You can sometimes see that thermal boundary layer in a long lens over a warm field, mountain or most usually roadway. All those planning to go up should also consider the proximity of stone, brickwork, cement and terracotta and all things black to their observatories as they are all wonderful absorbers / retainers of heat.
I too like the idea of higher up and was thinking to one day turn our roof access / opening skylight in to something useful, but it's only 900x900mm so would need mods AND same problem as mentioned - tackling vibration in such a situation: 2nd storey timber construction/vibration damping/mass/pier mounting/isolating the floor yada yada yada......
Best
JA