How to set up a Python venv virtual environment
Admin
To set up a Python venv virtual environment, follow these steps: ✅ 1. Check if Python is installed Open a terminal or command prompt and type: Or on Windows: You…
Heliocentric velocities M81 and M82 in different frames of reference
The heliocentric radial velocities of Messier 81 (M81) and Messier 82 (M82)—corrected for the motion of the Sun relative to these galaxies—are as follows: 🌌 M81 (Bode’s Galaxy) 🌌 M82…
Installing GNU Radio & additional radio astronomy files
GNU Radio can be installed from: https://github.com/gnuradio There are different releases for different operating systems and the Windows version is called radioconda – this and Linux and Mac releases can…
Effect of oxidation on electrical conductivity of copper tape used on antennae
Copper tape that has oxidized to form copper oxide is much less electrically conductive than pure metallic copper — in fact, copper(I) oxide (Cu₂O) and copper(II) oxide (CuO) are both…
To open Command Prompt as Administrator in Windows
To open Command Prompt as Administrator in Windows, follow one of these methods: ✅ Method 1: From Start Menu (most common) ✅ Method 2: Using Run Dialog You’ll know it…
Installing CASA under Ubuntu
To install CASA (Common Astronomy Software Applications) on Ubuntu, follow these steps. CASA is commonly used in radio astronomy, especially for data from instruments like ALMA and the VLA. ✅…
CASA and GUIs
CASA does have a GUI, but the availability and scope of the GUI depend on the version you’re using: 🧱 Classic CASA (CASA 5.x or CASA 6 monolithic bundle) ✅…
What is difference between triplet astrograph with dedicated field flattened and quadruplets astrograph?
The difference between a triplet astrograph with a dedicated field flattener and a quadruplet astrograph mainly comes down to optical design, performance, and ease of use. Here’s a clear breakdown:…
Reducing noise in radio telescope systems
Original PowerPoint downloadable from link below. One thing I missed in it was to say that all monitor screens near telescope or aerial should be switched off and linear power…