Separation M81 and M82 galaxies
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The galaxies M81 (Bode’s Galaxy) and M82 (the Cigar Galaxy) are very close together in astronomical terms. Here’s how close: 🔭 Angular Separation (as seen from Earth): 📏 Physical (Spatial)…
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How to start Grafana dashboard on Linux MiniPC for Miguel’s dashboard for my Cosmic Watch muon detectors
Muon detectors x2, one on top of other, linked by 3.5mm audio cable, and USB cable plugged into BOTTOM detector and going to MiniPC rear USB port – tested and…
Working JSON Model for Grafana Dashboard for LRO Cosmic Watch Muon Detectors V2 (currently used https://cosmicwatch.astronomy.me.uk 29/6/2025) — 29/6/2025@22:30
{ “annotations”: { “list”: , “type”: “dashboard”
Periodic screenshots and FTP for Ubuntu
Is there a program for Ubuntu which will take periodic screenshots and FTP to website? Yes, you can achieve this on Ubuntu using a combination of existing tools. There isn’t…
Software packages and algorithms used to convert radio interferometer readings into images/CASA (Common Astronomy Software Applications)
Several software packages and algorithms are used to convert radio interferometer readings into images, with the most common being the “CLEAN” family of algorithms and the Common Astronomy Software Applications…
New Grafana dashboard for my 2 Cosmic Watch Muon Detectors 28/6/2025
(This is separate from my PicoMuon Detector). This new domain URL below provides access to data dashboard from the 2 older detectors (click on link): https://cosmicwatch.astronomy.me.uk Please feel free to…
Muon detection using UKRAA Picomuon detector 17/6/2025
Graphs as of 17/6/2025: Daily graph from 16/6/2025: Latest weekly results: Latest monthly results:
NanoVNA vs TinySA
The TinySA and NanoVNA are both compact, affordable test instruments used in radio frequency (RF) and electronics work, but they serve different primary purposes: 🔍 TinySA (Tiny Spectrum Analyzer) Purpose:A…
Linux Ubuntu for Radio Astronomy: Common causes and fixes when you’re already in the dialout group but still get “permission denied” when accessing /dev/ttyUSB0
If you’re already in the dialout group but still get “permission denied” when accessing /dev/ttyUSB0, here are the common causes and fixes: 1. You need to log out and log…