Muon Data starting 11/4/2025 from UKRAA Cosmic Watch Muon Detectors
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This file can be downloaded from link below (117 MB .txt file): https://www.astronomy.me.uk/wp-content/uploads/2025/05/Muon_Data_110425@0116.txt
A simple way to test an antenna with a NanoVNA
A simple way to test an antenna with a NanoVNA involves connecting the antenna to the NanoVNA, calibrating the device using open, short, and load standards, and then measuring the…
UKRAA PicoMuon Muon Detector up and running
Thanks to Ted Cline who helped me get this up and running on Sunday evening. Now that it is going, it is a wonderful little machine – composed of 2…
First Light UKRAA PicoMuon Muon Detector
“Live” data from this detector at LRO can be viewed at www.astronomy.icu First light from 12/5/2025 @ 10:43, after the detector had been turned on for about 12 hours. Click…
Mr Bean in the Garden
Because I have walked into the patio door on left as I forgot it was closed and could not see the clear glass in the dark, and on right I…
Making scaler ring for cantenna on dish – conversation with ChatGPT 2/5/2025
I came across pictures of scaler rings for feedhorns and had a conversation with ChatGPT on whether such a ring would improve the performance of my 150cm dish made from…
Optimising the feed for 2m dish used for hydrogen line radio astronomy
ChatGPT suggested following April 2025: Great — optimizing the feed for your 2 m dish at 1420 MHz will ensure you’re getting the most out of your improved collecting area and resolution.…
Advantages of upgrading from 1.5m dish to 2m dish for hydrogen line radio astronomy
The following comes from CHATGPT, when I asked it this question April 2025: Upgrading from a 1.5 m dish to a 2 m dish for observing the 1420 MHz hydrogen line will yield…
Re-processing and re-labelling 2nd LRO-H1 (Ptarmigan Triffid 4×4 Dipole Array Antenna) Milky Way Hydrogen-Line Map July 2025 on 26 April 2025 to correct labelling errors
My new map (below). In this new map, I felt that only two arms (Perseus and Outer Arms) could be labelled with confidence: Map with labels: Map without labels: I…