The Astropixels.com ephemeris data extractor
I would like to introduce the new tool, whose goal is to extract the ephemeris data from the Astropixels.com service. Before I start to describe the major features of my program I would express...
Tagged: Sun
Astrophotography with Sigma 150-600mm DG OS Contemporary and dedicated teleconverters
The summary of my amateur test with a Sigma 150-600mm DG OS Contemporary lens and two teleconverters TC-1401 and TC-2001 includes the astrophotography section. I wanted to check this lens in terms of its...
Mercury transit on November 11, 2019
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...
H-Alpha filter in an exceptional observations of solar phenomena
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...
The movement of prominences against the lunar disk during total solar eclipse
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...
Photography of the Sun through a natural filters
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...
Solar corona visibility before & after totality
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...
Horizontal visibility as the main factor of long-distance observations, part 1 – weather, astronomical and optical elements
This article is sort of a continuation of issues related to light scattering in the Earth’s atmosphere as well as haze presence. These subjects are closely associated with each other, so some stuff presented...
ISS transit across the Sun & Moon
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...