Permanent outdoor telescope setup advice for Northern California climate

Backyard Astrophotography Observatory Weather Help Needed
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Paul Campbell avatar
Paul Campbell avatar

I’m not quite ready to do this, but i’d love to create a permanent rig outside. Feels like there’s quite a few environmental threats to consider. Rain of course, excessive heat and cold, condensation, etc. For anyone who has done this, what’s your setup? Are we talking basically ADU level structure that is temp controlled or can a garage environment suffice? I’m in northern California where it gets down to about freezing in the winters and sometimes 114 f in the summer. I have a C8, EQ-G mount and asi533mc pro. What kind of abuse can this equipment take over years potentially?

Thanks!

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Tony Gondola avatar
Tony Gondola avatar

There’s a good track record with observatories and the gear within. In general it’s not really a problem. There are rigs in very plain enclosures in rougher climates than CA. With a max temps of 117F it doesn’t sound like you are on the coast but rather inland. At that location even humidity should not be an issue. Keep the rain out and make sure you have good airflow and you’ll be right!

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Paul Campbell avatar
Paul Campbell avatar

Tony Gondola · May 27, 2026, 11:48 PM

There’s a good track record with observatories and the gear within. In general it’s not really a problem. There are rigs in very plain enclosures in rougher climates than CA. With a max temps of 117F it doesn’t sound like you are on the coast but rather inland. At that location even humidity should not be an issue. Keep the rain out and make sure you have good airflow and you’ll be right!

Good to hear! Appreciate the message. Yeah i’m in Chico, CA. About 3 hours from the coast. Fairly low humidity. Does it reduce the lifespan of equipment or require some additional maintenance to optics? The thought of my equipment expanding and contracting all day due to temp changes makes me wince. I’d probably take my optical train inside since that only takes seconds to reattach. But I may be significantly under estimating how much this equipment can take. Sounds like it can take quite a bit

Tony Gondola avatar
Tony Gondola avatar

Yes, it can. The main problem with humidity is corrosion, especially if it’s ocean air but that’s not a concern for you.