June 2024
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Unsuccessful attempt to get first light with Sol’Ex 25/6/2024
Strange outcomes below (see pictures below – output from INTI processing software)! I think this might be because I mistakenly scanned sun in wrong direction (up/down rather than left/right)?? Data…
Successful processing all viable hydrogen data from LRO Ptarmigan Array to 22/6/2024
My Milky Way map after 6 months! Ptarmigan Ex-Military Band 3 array. Hydrogen 1420.405MHz Andy Right click link below to download all viable LRO data up to 22/6/2024 (NPZ and…
First attempt at solar scans with new aluminium Sol’Ex 22/6/2024
Mounted on Sky Watcher ED 72 Pro telescope on a Sky Watcher HEQ5 Pro mount, ZWO ASI 174MM camera. I placed sun just to east of where telescope pointing –…
Sol’Ex now sports longer Losmandy Bar and push up screw
The aluminium Sol’Ex is wonderfully machined buy very heavy putting a lot of weight on the focuser, increasing risk of deformation in light path and the device falling out of…
High resolution spectrum of whole Sun near main hydrogen line in Sol’Ex 10/6/2024
Sky was too cloudy today to attempt my first solar scan and processing of image of Sun in INTI – so instead I pointed my Sol’Ex spectroheliograph (SHG) at the…
How to focus main telescope Sol’Ex is attached to 8/6/2024
I am indebted to Minh for advice in attached thread on how to achieve focus – not as easy as when using eyepiece! Andy
New attempt at focusing Sol’Ex collimation tube – focus point achieved with ZWO ASI 174MM camera 8/6/2024
New photos of Sol’Ex aluminium collimator tube and Shelyak collimator lens, ZWO helical focuser and ZWO ASI 174 MM camera showing position of camera which is mounted via 1.25 inch…
Minh’s advice on sorting out focusing issues with collimator tube on my Sol’Ex spectroheliograph 7/6/2024
Thanks Minh for this advice! Andy
Observatory at LRO gets a coat of creosote
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…