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  1. Newsgroups: sci.astro
  2. Path: sparky!uunet!spool.mu.edu!sol.ctr.columbia.edu!eff!news.byu.edu!ux1!fcom.cc.utah.edu!park.uvcc.edu!ns.novell.com!ithaca.Eng.Sandy.Novell.COM!mcd
  3. From: mcd@ithaca.Eng.Sandy.Novell.COM (Mark Dakins)
  4. Subject: Re: Cleaning a mirror
  5. Message-ID: <BuLA42.96L@Novell.COM>
  6. Sender: usenet@Novell.COM (Usenet News)
  7. Nntp-Posting-Host: ithaca.eng.sandy.novell.com
  8. Organization: Novell, Inc.
  9. References: <1992Aug28.142738.15691@nsisrv.gsfc.nasa.gov> <1992Aug31.040701.13407@athena.cs.uga.edu> <1992Aug31.184827.7297@pacdata.uucp>
  10. Date: Mon, 14 Sep 1992 22:21:38 GMT
  11. Lines: 18
  12.  
  13. In article <1992Aug31.184827.7297@pacdata.uucp> dave@pacdata.uucp (David Ambrose) writes:
  14. >
  15. >    Be aware that the Astroscan's mirror is parabolized by the
  16. >coating!  You want to take very good care of it.  You cannot just send
  17. >them to Panchro or Clausen for recoating.
  18. >
  19. >
  20. >-- 
  21. >David Ambrose - Pacific Data Products           UUCP: uunet!pacdata!dave
  22. >619/597-3426                     Internet: dave@pacdata.com
  23.  
  24. Uhhh, I don't think so.  This is an f4 mirror.  Although it is probably
  25. technically possible to lay down a precise, variable thickness coating
  26. to do this, the cost would be very, very high I think.  What makes you
  27. think this?
  28.                     Mark Dakins
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