Observatory at LRO gets a coat of creosote
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Time to protect the wood! The observatory is 8-10 years old now. I’ve replaced the roof at one point from the original felt to shingles. Regular creosote seems to have…
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Correctly focusing Sol’Ex camera tube at night 6/6/24
Correctly focusing Sol’Ex camera tube by taking it out of Sol’Ex, mounting on tripod, and aiming at star at night. This needs an object that is close to infinity and…
30 sec dark frame Sol’Ex with ASI174MM camera 5/6/2024
Nice and dark with very few bright pixels – shows no light leak on Sol’Ex – great stuff! Andy
Optimal focus position on focuser on camera tube on Sol’Ex 5/6/2024
I am finding this very difficult to ascertain – using Christian Buil’s advice, the setting is 2.62mm on the ZWO helical focuser BUT I seem to have sharper image of…
Key PDF documents from Christian Buil’s website on building and using Sol’Ex Spectroheliograph, accessed 5/6/2024
Note Christian Buil’s website & Youtube have many more excellent tutorials and information on Sol’Ex – these three are summary PDFs for quick access. Constructing Sol’Ex: http://astronomy.me.uk/wp-content/uploads/2024/06/How-to-construct-SolEx-Montage_solex_EN-reduced-size.pdf Adjusting Sol’Ex after…
Incredible effect of focusing collimator block on sharpness & visibllity spectral lines Sol’Ex 5/6/2024
Slight focusing movements only required – amazing effect! Andy
My homemade North Post for NEQ6 tripod
Made with some threaded screw rod and square nuts. Andy
First light from aluminium Sol’Ex made in Vietnam
Arrived this morning, transferred optics from 3D-printed plastic Azur3D Solex to new aluminium Sol’Ex this afternoon, couldn’t initially get a spectrum until I realised I had (i) added washer on…
Orientation of diffraction grating in new aluminium Sol’Ex enclosure
I am convinced that the Azur3D 3D-printed Sol’Ex has issue with alignment of grating holding in its holding. it is somewhat differently placed in the new Vietnamese aluminium Sol’Ex housing…
How to change tyre on Astro Tuff Truk
Information from Lee at Astro Tuff Truk, together with spare tyre he kindly sent me. Andy Click on links to download instruction files in PDF and Microsoft Word format. PDF…