The biggest celestial event in April 2020 was definitely the meeting between our closest planet Venus and one of the most renowned open star clusters – the Pleiades. The phenomenon was interesting due to...
My third remote observation of the solar eclipse was aimed at the fleeting lunar shadow when the Sun was already below the horizon. Previously I hadn’t had occasion to see a similar effect, as...
This week commenced with a rare celestial event, which is the transit of Mercury across the solar disk. Unlike the last event such as this, what occurred exactly 3,5 years ago, I had no...
Astronomy / Astrophotography / Astrophysics
by Krukarius · Published 2019-09-19 · Last modified 2024-06-12
In this short post, I would like to share with you my ideas, on how can we use the Hydrogen-alpha filter for solar observations during exceptional situations. The situations, that I am going to...
If you like watching the night sky, you must have been using at least one of the stargazing (night sky) apps or software. Mustn’t you? One of the most popular software, which is both...
Astronomy / Astrophotography / Optics
by Krukarius · Published 2019-06-16 · Last modified 2024-06-12
A vast majority of people around the World don’t realize something like starlight. Nowadays, when skies are highly polluted with light, most people cannot even see the Milky Way in the sky. It’s known...
Astronomy / Astrophotography / Weather
by Krukarius · Published 2019-06-01 · Last modified 2024-06-12
At the finish of my considerations about the solar eclipse phenomena observations, done during the last total solar eclipse in the USA as well as another few partial solar eclipses, which I have been...
Astronomy / Astrophotography / Optics
by Krukarius · Published 2019-04-16 · Last modified 2024-06-12
A solar eclipse is the most spectacular natural phenomenon, as we can see on Earth. It induces at least a dozen or so other events, which occurrence can be observed during this time. In...
Except for many phenomena related to the total solar eclipse, that I observed away from the Sun there is one, which is worth attention. This is a prominences movement against the lunar disk, as...
Astronomy / Astrophotography / Weather
by Krukarius · Published 2019-03-20 · Last modified 2024-06-12
Gazing at the Sun with the naked eye is dangerous. Much more dangerous is watching the Sun through instruments like binoculars or telescopes without a filter! It causes serious eye damage, which is a...
The area covered by umbra is the most spectacular of the whole solar eclipse phenomenon, therefore I would like to pay particular attention to this. Because I was watching the totality only once, I...
Seeing a solar corona during a total solar eclipse can be an awesome experience. This view is jaw-dropping for everyone, even for solar eclipse chasers, who used to have seen it at least a...
Recently I have shown the light level changes during the solar eclipse. The illumination level is strongly related to the sky brightness. Both of them change at the same time throughout the eclipse. In...
The illuminance level and sky brightness are very important elements of solar eclipse phenomena because both are clearly noticeable by the observer along with his eye adaptation. When the eclipse phase is deep and...
Astronomy / Long-distance observations / Optics
by Krukarius · Published 2019-01-10 · Last modified 2024-06-12
A solar eclipse is a magnificent natural phenomenon, during which the direct Sun is shadowed by the moon to darken the daytime sky (Vollmer, Shaw, 2018). In this article, I would like to draw...
The light scattering issue in the Earth’s atmosphere has been described recently for typical daylight, evening, and twilight conditions. In this article, I would like to explain a light scattering phenomenon under total solar...
When we ask ourselves why the sky is blue we can think about the most important type of light scattering in the Earth’s atmosphere. This is Rayleigh scattering. I was writing about this type...
Since I bought the DSLR camera I dreamt about the total lunar eclipse observation. I wanted to repeat my observation scheme on different, much better equipment. Recently I observed the total lunar eclipse in...
Previously I described my involvement in the Krosno Branch of the Polish Association of Amateur Astronomers. Today I would like to carry on the subject of the associations of amateur astronomers arising about a...
The International Space Station (ISS) is a habitable artificial satellite in low Earth orbit. This is the largest human-made body in low Earth orbit. The width of ISS is 108.5 m and its length...