Do 6" dobsonians need a cooling fan for the primary mirror?
6" Dobsonians
Started by sawsatch, 11/13/2014 04:27AM
Posted 11/13/2014 04:27AM
Opening Post
Posted 11/13/2014 10:32AM
#1
I would say "no" unless it is of unusual thickness. Most older 6-inch mirrors are still at an inch or less in thickness and, really, they cool quickly for their size.
You get into some of those Starhopper newts and the primary mirrors are virtually streamlined they are so thin!
Best all!
You get into some of those Starhopper newts and the primary mirrors are virtually streamlined they are so thin!
Best all!
Just a few thoughts:
8) FS-152SV sitting in the office
Japanes super lucky zen observatory garden:S Meade ETX-90 finder scope position
Hino Optical Mizar 120SL observatory model:C SR-4mm eyepiece with a 3x barlow in a 60mm refractor
8O Zeiss Victory 7x42 SFs
Having over 135 vintage oculars to play with
My life surrounded by wonderful friends and impeccable optics
Funding Member
Sponsors
- ADM
- Anacortes Telescope
- ASTROPHOTOGRAPHY BY MARTIN PUGH
- Astromart Customer Service
- RemoteSkies.net
- APM-Telescopes
- GetLeadsFast, LLC
- CarbonScopeTubes LLC
- astronomy-shoppe
- Matsumoto Company
- T.E.C
- OMI OPTICS USA LLC
- AstroMart LLC
- SellTelescopes.com
- jp Astrocraft, LLC
- FocusKnobs
- Desert Sky Astro Products
- Rouz Astro
View all sponsors