Re: [lx90] Comet Hoenig Movie
>From: "dennis_persyk" <dpersyk@...>_________________________________________________________________
>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.
>It shows its track over an interval of 37.5 minutes. The images are
>mirrored up/down � the comet was heading downward.
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