European Astrofest 2026 dates
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Kensington Conference and Events Centre, The Town Hall, Hornton Street, London, W8 7NX Opening times Friday 6th February 2026: 9am – 6pm Saturday 7th February 2026: 9am – 6pm
July 2025
Why M57 is a poor radio astronomy target for amateurs using H-Line radio telescopes
In short: no prominent absorption line in Messier 57 is known near the 21 cm hydrogen line (1420.4058 MHz). However, let’s break that down in detail — because what you’re really asking…
How to force the Handbrake app in Windows to use MP4 with H.265 and retain your audio quality
If H.265 (x265) in HandBrake is defaulting to MKV instead of MP4, it’s because some video/audio combinations aren’t supported in MP4 containers. Here’s how to force MP4 with H.265 and…
Options available in Windows 11 for resizing MP4 video files in a batch
For Windows 11 and resizing MP4 video files in batch, here are your best options: ✅ Option 1: FFmpeg (Recommended – Powerful & Free) Step-by-Step: This will: 🔧 You can…
Performance comparison for FFT-based correlation of a 1,000,000-sample dataset for variety of computers with different specifications
Here’s a performance comparison for FFT-based correlation of a 1,000,000-sample dataset, using your original reference system (i5-6500, 8GB) and several upgraded configurations, including newer 12th-gen Intel CPUs. ⚙️ Test Overview…
Standalone Python script to generate two synthetic signals and performs FFT-based correlation.
Here’s a standalone Python script you can run on your Linux system later. It generates two synthetic signals, performs FFT-based correlation, and saves the result to a timestamped .npy file…
CPU and RAM Comparison for processing radio astronomy data
The Intel i5-8500 with 16GB RAM will be noticeably faster than the i5-6500 with 8GB RAM for processing radio astronomy data, but the actual performance gain depends on the nature…
astro-all is not a valid package in Ubuntu by default
No, astro-all is not a valid package in Ubuntu by default. If you run: You’ll likely get an error like: Alternatives to astro-all If you’re looking to install a comprehensive…
In Debian and its derivatives (like Ubuntu, Raspbian, etc.), there’s no official meta-package specifically for radio astronomy
In Debian and its derivatives (like Ubuntu, Raspbian, etc.), there’s no official meta-package specifically for radio astronomy. However, you can create a custom meta-package to install a set of radio…
To use GNU Radio for radio interferometry with an SDRplay RSPduo
To use GNU Radio for radio interferometry with an SDRplay RSPduo, you’ll need to: 🧭 Overview: SDRplay RSPduo Interferometry with GNU Radio Component Description SDR Hardware SDRplay RSPduo — a…