Leaving mounts outside??
Posted 31 May 2013 - 03:31 PM
What about throwing a garbage bag over top?
My ideal situation is if I have a few clear nights in a row. Just keep the mount outside and simply do a quick alignment when it gets dark and be done.
Posted 31 May 2013 - 03:38 PM
When I'm using my mount outside at home, I throw a sheet over it to help keep the dew from getting too much. Most of the time, I let it run through until morning.
A garbage bag would probably trap the dew -- that's why I use an old bedsheet to help wick away the moisture.
Same goes with the OTA. If you cap your optics, you could tape a desicant pack onto the lens cap to help keep the dew at bay. Bringing a cold OTA into a warm house would accelerate condensation on the optics. Best to take it into an unheated garage or shed or use dew heaters to keep it warm enough to avoid dew formation.
Good luck and be prepared to be spoiled by setting up for multiple nights!
Posted 31 May 2013 - 04:07 PM
Maybe the wife has a bedsheet I could "borrow." Need to look into that.
My ultimate arrangement would be a pillar of some type. Just take my mount outside, already calibrated and bolt it fast. Do a simple alignment as night comes in and away we go. Someday...
Posted 31 May 2013 - 04:26 PM
now leaving it out for weeks at a time or something like that, not a good idea, that's why people put observatories in so they can do that.
Posted 31 May 2013 - 06:20 PM
Posted 31 May 2013 - 10:28 PM
It's been working great and makes observing so much easier not having to go through the alignment process.
Posted 31 May 2013 - 11:53 PM
You can leave your mount outside, but I think you definitely want to cover it. My CGEM has been outside with a Telegizmo 365 cover on it since December. Telegizmos also makes a 'Standard' cover which is more suited for what you want, namely a couple of nights in a row where you don't want to setup and teardown during a clear stretch of weather.
Posted 01 June 2013 - 04:08 AM
Posted 01 June 2013 - 08:18 AM
Posted 01 June 2013 - 09:47 AM
Posted 01 June 2013 - 11:45 AM
Posted 02 June 2013 - 01:16 AM
I am, however, building a small (4x4x4') roll-off on an island in the Stockholm Archipelago and a larger four-scope roll-off in the South of France, so I'm getting there
Posted 03 June 2013 - 04:14 PM
Posted 11 June 2013 - 05:13 AM
Nice pics and great replies. Very helpful! Maybe a piece if masking tape over the ports would keep the bugs out? I'll have to experiment a little.
Be very careful with masking tape, it tends to leave a lot of s... behind when you try to remove it... worse than bugs...
Better use electrical tape
Posted 12 June 2013 - 11:55 PM
Posted 13 June 2013 - 04:53 AM
Posted 13 June 2013 - 03:48 PM
Best method to avoid condensation is to take the OTA case outside. When finshed put the OTA back in the case and you can bring it inside, as long as you don't open it for an hour or so. The only caveat is if the OTA is already dewed up/wet, then you should let it dry out before putting it in the case.
Good point on the OTA and the cold. Didn't think of that.
Posted 13 June 2013 - 04:01 PM
When you cover a mount it is imperative that the mount can breathe some air. If it is too tightly confined moisture will accumulate - even in cold weather - and eventually damage the mount. So, even though see you almost two feet of snow in my balcony picture, the bottom of the black cover is actually open. Th eopening is about one foot below the mount bottom so that snow won't blow up, but it is open nonetheless.