Category Archives: Astronomy

Observation Report, 20 July 2012

Posted on July 21, 2012 by james

With almost horizon-to-horizon blue skies yesterday evening I gambled on putting out both the 127 Mak on the EQ3-2 so I could polar align it for any solar imaging that I can find time for, and the ST120 with its … Continue reading →

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Dovetail Adaptor for Old EQ3-2 Mounts

Posted on July 12, 2012 by james

My EQ3-2 is one of the older models that has fittings for scope rings, but doesn’t have any form of dovetail clamp. The new models have both. I prefer to use dovetails as it makes swapping scopes around between mounts … Continue reading →

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50mm Binocular Objective Finder Howto

Posted on June 28, 2012 by james

My second right-angle finder based on a binocular objective is now built (if not yet cosmetically finished) and this time I’ve taken photos so I can now document the construction process. My aim was to make a functioning right-angle finder … Continue reading →

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Revisiting Naked Eye Limiting Magnitude

Posted on June 23, 2012 by james

Back in March I tried checking stars in Usra Major to get an idea of the naked eye limiting magnitude (NELM) for my home. The seeing wasn’t great that night, but I obtained a figure of 5.55 for NELM. Earlier … Continue reading →

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Fan-Cooled Xbox Live Camera Howto

Posted on June 23, 2012 by james

I modded a second Xbox Live camera to add a fan today and this time took photos, so here’s how it’s done. This one is slightly different from the first in that I’ve not chopped down the lens housing to … Continue reading →

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It’s mid-summer, so where’s the Sun?

Posted on June 20, 2012 by james

Someone was asking today why the sky is so bright at night at this time of year, so I had to have a think about where the Sun actually goes… So we’re clear what I’m talking about, let’s say you’re … Continue reading →

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Observation Report, 19th June 2012

Posted on June 20, 2012 by james

Well, it’s been a full month since I last got out with a telescope thanks to the weather, which has been on the wrong side of depressingly atrocious for all of the last four weeks. Despite feeling fairly tired therefore, … Continue reading →

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Fan-Cooled Xbox Live Camera for Planetary Imaging

Posted on June 17, 2012 by james

The Xbox Live camera has found something of a following as a cheap planetary/lunar imaging camera since the SPC900 (which is undoubtedly a far better camera) started fetching silly prices. I’ve always found it very noisy however. The camera does … Continue reading →

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50mm Binocular Objective Finder

Posted on June 17, 2012 by james

I wanted a 50mm right-angle finder, but didn’t fancy paying the £90 to £100 they seem to cost, so after someone mentioned it was possible I decided to make my own. I picked up a 50mm binocular objective, cheap diagonal … Continue reading →

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Pathetic “10 Best Telescopes” Feature in The Independent

Posted on May 18, 2012 by james

I’m not entirely sure why I find myself so incensed over this particular piece of trash journalism (and I use the word in the loosest possible sense). Perhaps because it aptly demonstrates the utter contempt for their readership endemic in … Continue reading →

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