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Thanks Bill.
Im currently using a 500 Lines/mm grating. If I were to use say a 1,000 Lines/mm grating, would that help the spectrum resolution and compensation for the shorter focal length lens?
Thanks Nick. Very useful for those unable to make the meetings.
Mind me asking what hardware/software you use to make these videos please?
1% Sliver of Venus from this evening, 24th March.
Taken with TEC140 refractor, 2x barlow, and DMK41 camera.
As William explained above, I captured it on my all-sky camera from Monasterevin, Co. Kildare consisting of a Computar 2.6mm lens and Watch 902H2 Supreme.
Analysis in UFOAnalyser indicates a Leonid.
Michael.
Thanks Jeremy. I rang Custom Scientific – as the name suggests they do custom work. They can make a 2″ round mounted V filter for $400 + shipping. Although it is costs more than the 50mm round unmounted, it would save me the expense of a new filter wheel specifically for the larger unmounted filters. TBH, I have a preference for trying to keep the setup as simple as possible and avoid filters wheels if I can. I’ll think about it a little.
However, your comment re Cataclysmic Variables is interesting. I might look into that a little…..
Ta,
Michael.
Nick,
Thanks for your reply.
If it’s not too much trouble to upload, then yes I’d love to hear it.
Thanks a mill,
Michael.
Nick,
We were lucky in that we had John Beattie organised the trip. Nothing was left to chance. The windows were washed in deicing fluid the night before ir order to minimise the risk of ice buildup. The internal perspex windows were all replaced along sun-side of the plane so everyone had a nice clear view.
Michael.
