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Recent Posts
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By silentrunning · Posted
Thanks, acquisition details can be found here on a previous process.... -
By Ships and Stars · Posted
My best lunar views, hands down, have been through the 300p with binoviewers, just using bog standard revelation plossls or the 20mm WO EPs. And that's up against a 20" dob, single 100deg EPs and a slew of binoculars including 40x obsy bins etc. I've also bagged the Horsehead with the 300p from a dark site with relative ease, not as prominent of course as the 500p, but it was there. Quite a few galaxies as well! -
By Skipper Billy · Posted
If you go the resin route I wouldnt use CSM I would glass fibre tissue - doesnt disintegrate like CSM - esier to work with and requires a lot less resin to fill it and is therefore easier, cheaper and a lot lighter. If you use epoxy resin it will still need painting as epoxy has very poor UV resistance. -
BGO = Baader Genuine Ortho = out of production for some years now. Really superb quality if you can get hold of one. BCO = Baader Classic Ortho = in production at just under £50 each. Focal lengths available are 6mm, 10mm and 18mm. The 10 and 18mm are really good eyepieces and, IMHO still probably the best in terms of pure optical quality that you can get for £50. The 6mm is not quite as good as the 10mm and 18mm but still a comptant 6mm eyepiece. The Baader Classic Orthos work very well with the Baader Q-Turret 2.25x barlow lens which can also give 1.3x amplification if the optical element alone is used in the 1.25 inch barrels of the Orthos. All the above come with the standard ortho characteristics of eye relief that is around 80% of the focal length of the eyepiece. The Baader Classic Orthos have a slightly wider apparent field than the Baader Genuine Orthos (50 degrees vs 42 degrees) but the outer 5% or so of the Classic's field is what I call "framing field" and not quite as well corrected as the rest of the view. I believe this was a deliberated design decision by Baader. The eye lenses of the Baader Classic Orthos are slightly larger and easier to find in the dark than the Baader Genuine Orthos. The above includes the Baader Classic 32mm which is a plossl rather than an ortho design. -
So it is!! 🤣 Didn't notice that but recognised it anyway. Imaged the Crescent (aka space brain) before...
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Watched the ISS go over Lowestoft followed by the much fainter Crew Dragon capsule. Could just see the latter and might have got a handheld image or two whilst hanging out the bedroom window.· 0 replies
Last night I set up my big refractor and captured some video clips of the Moon at first quarter (at f=2250mm and f=2700mm). Some time consuming processing awaits!
Lovely clear night this evening after a really beautiful sunny day. Nighty night stargazers.
George still socially isolated on the East Coast.
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Not spotted it as yet, despite knowing exactly where it was. Too much haze in my parts of late to enable a naked eye viewing even though it's quite bright.· 2 replies
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Been a 'good' old boy and managed to get my very old QHY5v to talk to an old copy of PHD2 in order that I might use it for guiding. This frees my QHY5L-11 colour planetary camera, which I had been using for guiding, for other uses. Been a 'bad' old boy this week and purchased a QHY5L-11 mono camera for spectral application in combination with a 'homemade' transmission grating Mark 3. It is my understanding that an under £200 purchase in lock-down is acceptable behaviour for the 'older retired gentleman' in 'not upsetting long-suffering life partner' mode.😉· 0 replies
This new camera - Peak QE 74% and pixel size 3.75 um- might also be used in combination with it's colour variant to take some images of brighter DSOs - probably worth a try out on M27 and M57 later in the summer, as long as it doesn't get too hot. (not much chance of that on the UK's desirable East Coast!)
Very excited awaiting a package from Modern Astronomy. Come on Bernie!
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