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Re: [lx90] Comet Hoenig Movie

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  • Alan, W4WMM
    EXCELLENT! ... _________________________________________________________________ MSN Photos is the easiest way to share and print your photos:
    Message 1 of 3 , Sep 1, 2002
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      EXCELLENT!


      >From: "dennis_persyk" <dpersyk@...>
      >Reply-To: lx90@yahoogroups.com
      >To: lx90@yahoogroups.com
      >Subject: [lx90] Comet Hoenig Movie
      >Date: Sat, 31 Aug 2002 16:40:56 -0000
      >
      >Last night I imaged comet Hoenig with the MX716 at f/6.3. I used
      >binned mode, affording 4 times the sensitivity at 2 times poorer
      >resolution. Even binned 2x2, I was undersampled (for Midwest seeing)
      >at 1.7 arc seconds per pixel. The comet was very, very faint in the
      >eyepiece of the LX-90.
      >
      >I was amazed that I could acquire for 2 1/2 minutes without smearing
      >the stars too badly. There is just one smeared frame. Was that
      >because Hoenig was in Draco, only 24 degrees from the NCP? My usual
      >prime focus unguided limit is about 45 seconds.
      >
      >I was able to image a bit of a tail on the comet. I have uploaded an
      >animated GIF to Photos/ Dennis P / Comet Movie.
      >
      >http://photos.groups.yahoo.com/group/lx90/vwp?.dir=/Dennis+Persyk&.dnm
      >=Comet+Movie.gif&.src=gr
      >
      >It shows its track over an interval of 37.5 minutes. The images are
      >mirrored up/down � the comet was heading downward.
      >
      >Dennis Persyk
      >Hampshire, IL
      >
      >
      >
      >
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