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By A McEwan
Selling some accessories. A couple of Meade DS 4000 Super Plossls, 9.7mm and 26mm. Both in bolt cases and in great condition.
£15 each or £25 for the pair.
Skywatcher 6x30 finderscope with caps and mount. Some scuff marks on the mount foot, as to be expected. Optics nice and clean.
Postage at cost.
Selling this 32mm TV plossl with smooth barrel and TV eyeguard extender. It comes with lens caps and box. The box is rather ruined, but the eyepiece is in very good condition. Lenses are mint, 2 or three dots on the barrel.
Asking for £100, which includes RM 1st class signed-for. Payment via bank transfer or PayPal as friends.
By Kcks Regulus Star
On the 2nd of July I closed my curtains one night before I went to bed but, before they were shut I noticed a strange multicoloured light flickering low in the sky in the northern celestial hemisphere. I Thought to myself if that is a star it looks amazing. The next night (3rd of July) I decided to take another look at this multicoloured light which was still there, Only this time I used my binoculars, I was seeing blues, greens & reds. We have all seen stars by looking up into the sky but, I have never seen a star create multi colours before. It makes you feel excited inside and you think that no one else can see this until you tell them and share the same experience together. I believe I was looking at the Capella Star which is the brightest star in the constellation Auriga and your not kidding it is bright. I cant wait to have another look tonight to see if the multi colours are still there. I would like to have taken at picture of it but I am not setup to do that just yet as I am very new to star gazing. I wish someone here can confirm what I saw and to post a picture of it would be awesome.
Nikon Prostaff 3s 8 x 42
I need some eyepiece recommendations.
I currently own a set of Meade Series 4000 UWA and SWA eyepieces. These are my pride and joy and are awesome eyepieces. Much better than the new Series 5000 range.
I've not been keeping up with equipment news and reviews for a few years as I prefer my current eyepieces.
However, I'm getting back into public observing events and was hoping you could recommend good UWA eyepieces that won't break the bank. I can't afford Televue and I wouldn't want to use works of art such as Televue or my Meade eyepieces for public use.
What are the current good Ultra Wide Angle eyepiece offerings? What should I look out for and what should I avoid?
lets imagine I wasn't to see a nice DSO about 15' size and I think it should look good nicely framed with a 1 deg field of view in the EP..
Which would give the better (or higher probability of seeing anything at all ) view from a semi urban light polluted home site (e.g Bortle 6)?
a) an 100mm f/6 refractor (fl 600mm) and a 10mm EP (60 deg afov, gain 60x = fov pf 1 deg)
(and exit pupil of 100mm / 60 = 1.6mm)
b) a 200mm SCT with focal reducer to give f/6 (fl 1200mm) and a 20mm EP (60 deg afov, gain 60x = fov of 1 deg)
(and exit pupil of 200 / 60 = 3.3mm)
My gut feeling is that the SCT should give a better view just based upon its 2xaperture - but Im not sure I understand fully the maths why.
Is the larger exit pupil going to result in a better / brighter / more successful view?
Or will the view be 'roughly' the same ?
Or have I got it all wrong.....