Astronomy amateurs myths – part I
Deep sky (extended) objects seen with telescope have greater surface brightness than objects observed with naked eye – FALSE It’s quite unintuitive, but it is so 🙂 The human eye in conn... Read More
Double stars observations
I already made a two entries about observing and measuring doouble stars (here and here). Over last one year and half I had a few sessions with this interesting type of objects. Many of them are only ... Read More
Stephan’s Quintet
There are many galaxies in the Universe, and sometimes two of them will come close enough to start interact between them. But it may be more than two, and that is the case of Hickson 92 galaxy group k... Read More
Cygnus Wall in NGC7000
NGC7000 is a well known emission nebula in Cygnus, close to prominent Deneb star. Whole NGC7000 North America is large cloud of interstellar matter that covers area of several apparent Moon size. But ... Read More
Cassiopeia and Cepheus
As you may already know Cassiopeia was a queen of Aethiopia and wife of king Cepheus. These mythological characters were put together also in the night sky. And there is plenty of things at the border... Read More
Lagoon and Trifid in hydrogen sea
These two clouds of interstellar matter are placed probably in the most prominent area of Milky Way in the constellation of Sagittarius. Under dark sky Lagoon can be seen with naked eye as faint patch... Read More
Thirty months with Samyang 135 f/2
It’s been well over two years since I got into my hands Samyang 135 f/2 glass. Since that time I found out, that all positive reviews about this lens proved to be true. This lens is optically cl... Read More
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 they landed on the Moon on July 20th, 1969 at 20:17:40 ... Read More