Tag: Astronomy
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Excursion to the GEO600 gravitational wave detector near Hanover on October 28, 2025
What was supposed to be 1.5 hours turned into almost 2.5 hours. This wasn't time dilation as predicted by Einstein's theory of relativity. But in a broader sense, it did have something to do with Einstein, because we at kosmos-os visited the GEO600 gravitational wave detector near Sarstedt, close to Hanover, on November 28, 2025.
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Reproducibility of transit light curves for the detection of exoplanets
The transit light curves of five exoplanets are evaluated for their reproducibility. The parameters examined are the indirectly measured radius of the respective planet and the temporal center of the transit. After a detailed treatment of the individual exoplanets, a summary of the measurements shows that the respective planetary radius was measured reproducibly in 10 of 12 measurements.
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Excursion to the Olbers Gesellschaft Bremen on April 22, 2025
Ursprünglich hatten wir nur die Teilnahme am Vortrag „Die Vermessung des unsichtbaren Universums mit Hilfe von Gravitationswellendetektoren“ bei der Olbers-Gesellschaft e. V. in Bremen geplant. Da wir wussten, dass der Vortrag in dem Gebäude der Hochschule Bremen stattfinden würde, in dem auch die Walter-Stein-Sternwarte beherbergt ist, hatten wir angefragt, ob eine kurze Besichtigung der traditionsreichen…
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Big, black, hot and with a short life expectancy
The measurement of the transit light curve of the exoplanet Wasp-12b is described. This exoplanet is special in many ways. The large number of existing transit light curves, including our own measurements, enables spectacular predictions about the lifespan of the exoplanet.
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Measurement of the transit light curve of the exoplanet TOI-2570 b
The measurement of the transit light curve of the exoplanet TOI-2570 b, which was only discovered in 2022, is described. The brightness of the parent star, which is located in a very dense field of stars, was determined in 148 images in relation to comparison stars. The result agrees very well with the data known so far.
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Visit to my observatory
On Wednesday, October 16th, 2024, a volunteer from the Neue Osnabrücker Zeitung (NOZ) and a photographer were with me to report on my hobby of astronomy, the comet C/2023 A3 (Tsuchinshan-ATLAS) and the “supermoon”. The article should appear in the online edition of NOZ.
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All good things come in threes
The sun has reached its maximum in its eleven-year activity cycle. For the third time this year, northern lights could be observed from Central Europe. A short excursion into the personal experiences of some kosmos-os friends at the Northern Lights on October 10, 2024 is presented.
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The Open Observatory in the Open Garden
Im Osnabrücker Land werden in jedem Sommer viele private Gärten für die Allgemeinheit geöffnet. Ihre Besitzer haben sich im „Offenen Gartentor Osnabrück und Umgebung“ zusammengeschlossen. Jeder Interessierte kann so eine Vielzahl von Gartenideen kennenlernen. So auch am Sonntag, 4. August 2024, im Garten in der Moorlandstraße in Osnabrück. Die Besonderheit hier: Es gibt eine Gartensternwarte.
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Mission EUROPA CLIPPER
On Saturday, June 9th, 2024, kosmos-os provided information about a new spectacular NASA space mission to Jupiter's moon Europa in October 2024 as part of a lecture at the Innovations Center Osnabrück (ICO). In front of ten interested listeners, Dr. Achim Tegeler reported on the current status of the development of the Europa Clipper Mission.
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Measurement of the transit light curve of the exoplanet TOI 3952.01 on January 10, 2024
The measurement of the transit light curve of the exoplanet TOI 3952.01, 1929 light years away, is described. It is a recently discovered exoplanet. The own measured data are compared with the few available literature values.
