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- Path: sparky!uunet!portal!lll-winken!overload.lbl.gov!agate!linus!linus.mitre.org!mandolin!chaloux
- From: chaloux@mandolin.mitre.org (Dave Chaloux)
- Newsgroups: sci.astro
- Subject: Re: Frosty the telescope
- Message-ID: <1993Jan26.165653.14347@linus.mitre.org>
- Date: 26 Jan 93 16:56:53 GMT
- References: <1993Jan19.174752.2575@nsisrv.gsfc.nasa.gov> <1993Jan22.211557.11926@craycos.com> <24JAN199301451186@reg.triumf.ca> <1993Jan26.002936.18268@craycos.com>
- Sender: news@linus.mitre.org (News Service)
- Reply-To: chaloux@mandolin.mitre.org (Dave Chaloux)
- Organization: The MITRE Corporation, McLean, Va
- Lines: 22
- Nntp-Posting-Host: mandolin.mitre.org
-
- Donald Arseneau writes:
-
- >I find that eyepiexes fog up by looking through them! I think it is the
- >moisture coming from my eye. Often standing up straight for half a minute
- >lets it clear up; sometimes I lift out the eyepiece, hold the barrel in my
- >fist, and wave it around.
-
- Personally I have very little problem with dewing of my objective. (The 20"
- mirror is protected by LOTS of tube).
-
- I do have problems with my eyepieces and occasionally with my diagonal. I have
- cured this by having a very low wattage heater on the diagonal. I also have
- a homemade heating element available near the eyepiece. If dewing is a problem
- I simply turn it on and wrap it around whatever eyepiece I am using at the
- time.
-
- Finally I have a electric heating pad attached to my ladder. When my eyepieces
- are not in use I have them in a homemade block of wood drilled for 1.25" and
- 2" attached to the ladder (where the paint would normally go.) The heating
- pad gets plugged in and goes over the eyepieces.
-
- This works great.
-