I came across the observatory photo below which is pretty much what I’ve been thinking of building. I just received my CEM70G and need to create a home for it outside on my front deck. This is the only portion of our lot where I can get south - northwest sky. I plan to mount it on a permanent pier attached to its own foundation below the deck.
I’m hoping that those of you who have your observing gear in small enclosures, can offer me some insights into how you control temperature, humidity and prevent dew formation within the closed box with the scope, mount and electronics.
I’ve had the mount and my 8” Newtonian OTA under a Telegizmos 365 cover for two weeks and have been completely unsuccessful in preventing dew on the OTA despite having a goldenrod heater and a Eva-dry 500 silica dehumidifier under the cover. I guess the airflow from below overwhelms these devices.
I’m assuming the closed ‘box’ will have all the same humidity problems as the TG cover while providing more protection and security to the gear. Hearing of your experiences with these problems and your suggestions regarding optimizing the design for my gear will be much-appreciated.
A few specific questions :
1. Should the ‘box’ have an enclosed bottom and be vented out through a louver with a small fan or be left open and vented through the spaces between the deck board?
2. Any opinions on the merits of providing a bit of heat? Temps here can vary from 100 down to 0F.
3. Any thoughts on power and data? I use wifi for observing control.
Photo of Similar Concept as found online: