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Re: [APML]:What did I photograph (round 2)
The Astro-Photography Mailing List
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In a message dated 7/4/98 10:15:53 AM Mountain Daylight Time,
wmilan@airdigital.com writes:
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The oval-ring object looks to me like an edge diffraction or
reflection of the bright star off the edge of an off-axis guider
or prism. Were you using an off-axis guider?
Wil M. >>
I think you may have solved the mystery, Yes I was using an off axis guider.
I took four more shots of the same object with the horse shoe in different
parts of the frame but I got the same results of all five shots, the same
reflection from the off axis guider prism. So I guess we can call this the
off axis nebula.
Bernie