Comet C/2023 A3 Tsuchinshan-ATLAS
Comet C/2023 A3 Tsuchinshan-ATLAS was a bit of an unexpected guest in the solar system. It was discovered at the beginning of 2023 when its…
A few days with a Daystar Quark
What is the Daystar Quark? Functionally it is a very narrowband filter that passes only a tiny amount of color around the hydrogen alpha emission…
Moon 8-9 days old
It is not like the Moon is ten days old only. This so-called “age” of the Moon is the time passed from the New Moon phase. And in that…
Apollo 11 landing site and Luna 15 crash site
50 years ago astronauts of mission Apollo 11 have been traveling to the Moon. They were somewhere in the middle of this outstanding journey, and…
Processing color Moon images
The Moon is very tempting and graceful imaging target. It is enough to have some longer focal length instrument without any tracking abilities to…
1304 Arosa photometry
1304 Arosa asteroid is yet another main belt object that orbits the Sun in 5 years and 9 months. Arosa diameter is estimated to 40km, and it is…
Comet 21P/Giacobini-Zinner
Comet 21P/Giacobini-Zinner has been discovered in 1900 by Michael Giacobini for the first time. Its another approach has been missed, and in 1913 it…
April 2018 Moonscapes
Last few days here in Poland were quite impressive for astronomy amateurs. Weather was good and stable in large area, and also Moon was moving from…
March 2018 Moonscapes
Over last two nights Moon was near to first quarter and was shining high in the night sky. I spent some very nice time at eyepiece on observations.…
Jupiter's moons and Moon
On frosty morning of February, 6th I have been waiting for Moon and Jupiter to climb higher in the sky. Around 6 am Moon has already been quite…