Alex Pettit Plate Yagi vs Ptarmigan Array for mapping Milky Way at LRO
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I have set up the new aerial from Alex Pettit at SARA next to my existing Ptarmigan ex-military dipole array, to see which is able to get better hydrogen signal…
Assembling Alex Pettit’s Hydrogen Line Yagi antenna
Loosely assembled – I’ve asked Alex some questions before I complete assembly. Andy Hi Alex Before I get the old soldering iron out can I check couple things with you:…
File URL to use for downloading large media files from astronomy.me.uk saved in the Large_media_uploads folder
Use following URL: https://www.astronomy.me.uk/Large_media_uploads/
SARA Scope in a Box original download & ezRA suite software & data file structure
ZIP folders for both essential pieces of software for mapping Milky Way. https://www.astronomy.me.uk/Large_media_uploads/ScopeBoxorigdownload.zip https://www.astronomy.me.uk/Large_media_uploads/ezRA.zip
Latest Milky Way map & associated plots at 1420.405MHz (hydrogen) using Ptarmigan Array at LRO (using data up to 17/8/2024)
Processing and plotting with ezRA suite software (Ted Cline)
Failure to detect solar interferometric fringes at LRO, Lichfield, UK, 13-15/8/2024
Calculating expected fringe period of interferometric solar traces, if detected (c/o Mike Otte, SARA): Fringe rate = Baseline / wavelength *angular rotation of earth * cos declination ex: Fringe period…
LRO Magnetometer traces August 2024
Apparently, significant dips – but what I don’t understand is that they appear to occur roughly same time each day! Andy 1/8/2024: B2/8/2024: 11/8/2024: 12/8/2024: 13/8/2024::
Does this trace show interferometry interference spikes from the Sun?
Latest attempt to record interference spikes using radio interferometer. This time, I used Mike’s AD8302-based receiver, with computer now removed 50cm outside box away from receiver and also 6 point…
Calibration using known source in VSPEC (Visual Spec) Spectroscopy Software 28/7/2024
My version of instructions on how to do this – incorporates Christian Buil’s guidance and my own screenshots. PDF Version: http://astronomy.me.uk/wp-content/uploads/2024/07/Calibrating-wavelength-in-VSPEC-Visual-Spec-Software-280724.pdf Word Version: http://astronomy.me.uk/wp-content/uploads/2024/07/Calibrating-wavelength-in-VSPEC-Visual-Spec-Software-280724.docx
Convenient and helpful device to improve focus of camera tube on Sol’Ex spectrohelioscope
3D-printed Bahnitov mask designed for 30mm guide scopes – purchased from ebay for £6.