Venus near Antares – understanding the great Venus orbit cycle, part 2

Venus near Antares every 8 years

This is the second part of the article, explaining the great Venus orbit cycle, which repeats on average every 3159-3160 years. Reminding the basic mechanism it’s exactly 395 8-year cycles, where the planet back pretty much to the same place at the same time in the Sky, except the situation, where this moment in its … Read more

Venus and the Pleiades together on the sky – understanding the great Venus orbit cycle, part 1

Venus and Pleiades every 8 years

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 its rarity. Throughout our life it will happen every 8 years, but what’s next? This article brings you not only the … Read more

Solar eclipse below the horizon 2019 – the World’s first webcam observation

Pinamar total solar eclipse below the horizon 2019

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 I watched the partial phases only. This observation was spectacular, because of the circumstances. I know only a few publications presenting … Read more

H-Alpha filter in an exceptional observations of solar phenomena

Mercury in H alpha near Sun

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 take into account are mostly solar eclipses, but also internal planet transits.  We have less than 2 months to Mercury transit … Read more

How to make the custom Stellarium landscape using Street View?

Street View in Stellarium

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 easy to use and contains most of the relevant stuff for night observers is Stellarium. The current version of this program … Read more

How bright the starlight is?

Albany, WA, Starlight

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 history, that during a huge power cut in Los Angeles in 1994 people were calling authorities, asking them what is this … Read more

Top 21 things to see during solar eclipse

Total solar eclipse 2017 Wyoming Riverton

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 fortunate to witness in my life, I would like to summarize all things and put them in one piece. I was … Read more

Top 10 intriguing things to see during solar eclipse

Solar eclipse 2017 96%

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 this article, I would like to list 10 of the most intriguing and uncommon phenomena, which an observer is able to … Read more

The movement of prominences against the lunar disk during total solar eclipse

TSE 2017 prominence movement

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 we can observe during totality. As we know, everything moves in the sky. A fleeting solar eclipse is an effect of … Read more

Photography of the Sun through a natural filters

Sun through fog

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 retina burn and blindness for the rest of your life. Basically, there are two types of solar filters: white light and … Read more

How the lunar shadow looks like during the solar eclipse?

Lunar shadow seen from MIR TSE 1999

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 am going to use some supporting materials next to my own pictures. How the lunar shadow looks? We can consider it … Read more

Sky brightness changes during total solar eclipse

Sky brightness changes total solar eclipse

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 this article I would like to focus on these changes, having external data from Wolfgang Strickling. Because his observation venue was … Read more

Light level measurements during total solar eclipse

Total solar eclipse 2017 Wyoming

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 turning into totality, the light level changes drastically, much quicker than on any other occasion. It makes the solar eclipse one … Read more

Visual range changes during solar eclipses

Owl Creek Mountains extended visual range total solar eclipse

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 your attention to another phenomenon, which I “discovered” accidentally during the Great American Eclipse – the visual range changes. 1. INTRODUCTION … Read more

Light scattering in the atmosphere during total solar eclipse

Lifght scattering in the atmosphere total solar eclipse

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 eclipse conditions, which was observed accidentally during the 2017 Great American Eclipse. Initially, the aim of my observation was a record … Read more

Light scattering in the Earth’s atmosphere part 2 – why is the sky blue and how the sky colour change?

Light scattering in the atmosphere

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 of light scattering on some occasions, like watching the solar eclipse through the webcams or wondering about the Martian sky. Today … Read more

Remote observation of the total lunar eclipse

Total lunar eclipse 2018

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 2015 with a compact camera only. Therefore the total lunar eclipse occurring on Friday evening 27th of July 2018 was a … Read more

Watching the sky with Cambridge Astronomy Association

Cambridge Astronomy Association, University of Cambridge

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 different organization. I will not bring you the history and main contribution of the association, as I did before. Everything you … Read more