• Planetary Nebulae
• Chemical Evolution of Galaxies

Lectures and Coursework:

• Astropraktikum: Projekte in Radioastronomie

    Observatoire de Strasbourg: (formerly)

• Evolution of Galaxies
• Introduction to Radioastronomy
• Exercises: Numerical Simulations

Tools and programs:

• JavaScript Programs for Astronomy, (Astro)Physics, Numerics, Electronics

Hands-on Activities:

• The CD ROM Spectroscope

• Light Experiments (simple experiments with light)
• Experiments in weightlessness ("microgravity")
• How Blue is the Sky? Photometry with LDRs
• Electrostatic deflection of candle flames
• other links about Hands-on (Astro-)physics

Radio Astronomy Activities:

• Signals and Noise

• Natural Radio Emissions at Very Low Frequencies (VLF) A summary of results since 2005.
  • Real-time map of lightnings in Europe
  • Map of past, recent, and current lightning in Europe
  • Archive of maps of lightning in Europe since 2019
• RadioJove (20 MHz) (2003-2009 at ISU)
• Cubesats and the Sun observed with the VHF/UHF ground station (144 & 436 MHz) at ISU

• ESA-Haystack radio telescope (1420 MHz: 21 cm hydrogen line) at ISU
  • The Second Illkirch Survey of Galactic Hydrogen
  • The Third Illkirch Survey of Galactic Hydrogen
  • The Fifth Illkirch Survey of Galactic Hydrogen
  • The Illkirch Survey of Galactic Hydrogen: DataCube
• The Orsay Survey of Atomic Hydrogen in the Galactic Plane by J.-J.Maintoux F1EHN
• Surveys of the HI sky: from various telescopes in France, Australia, and Kiel. Also shown are various angular resolutions of the Leiden-Argentina-Bonn all-sky survey.
• GCO Surveys of the HI sky done with the 2.3m radio telescope at Grove Creek Observatory near Sydney.

• Nearly All-Sky GCO HI Drift Scan Survey done with the 2.3m radio telescope at Grove Creek Observatory near Sydney.

• Mapping of Hydrogen around the Magellanic Clouds done with the 2.3m radio telescope (SRT) at Grove Creek Observatory near Sydney.
• Simulator for observations in the 21 cm line with the ESA-Haystack telescope. Based on data of telescopes of the same kind.

• ESA-Dresden radio telescope (10-12 GHz) at ISU
• Here are some notes of How to measure the Cosmic Microwave Background with satellite television equipment.

• The NOAA Viewer displays the solar noon radio fluxes measured from Penticton, Canada and the U.S. Air Force Radio Solar Telescope Network (RSTN) sites, and published by NOAA's Space Weather Prediction Center. Data since 9 July 2014 have been incorporated. The fluxes show the variations due to solar activity and rotation of the Sun.

• The Solar Eclipse 20 March 2015 observed at radio wavelengths with the DL0SHF Radio Observatory and Ground Station
• The Lunar Eclipse 4 April 2015 observed on 1.4 GHz with the 2.3m radio telescope (SRT) at Grove Creek Observatory near Sydney.
• The Lunar Eclipse 28 Sept. 2015 observed at radio wavelengths with the DL0SHF Radio Observatory and Ground Station

• A small AntennaCalculator for computing the properties of circular dish antennas.

• Website of DL0SHF Radio Observatory and Ground Station

• Earth-Moon-Earth (EME) Communications
• Paraboloidial Antennas

Solar X-rays (from GOES 8 and 10) Geomagnetic Field (from NOAA)

Links:

• My recent papers
• to other astro-pages

• Amateur Radio (DF3GJ)
• Current cloud cover over Europe
• Current cloud cover over Germany
• Google
• Cardiff Bay Webcam
• Kiel Webcams
• Laboe Webcam

last update: May 2024 J.Köppen