Twice a year, the moon turns orange for several hours. You can easily observe this phenomenon with the naked eye >>
Category: Astronomy
What can I observe with a telescope?
The telescope or telescope is used to observe craters and mountains on the Moon, sunspots (with a Mylar sunscreen), dark >>
When to observe the sky?
First you have to ask yourself several questions: what do you want to see, at what time and at what >>
The Calendar
Since everyone has the impression that it is the Sun that revolves around the Earth, men use it to calculate >>
The Strength of Light
You probably think like everyone else that light is immaterial, that you can not touch it or use it as >>
Disadvantages of Terrestrial Radio Astronomy
The advantage of radio astronomy appears when the light is stopped by the presence of clouds of dust that hide >>
Infrared Astronomy: ALMA, SMA, GBT and other LMT
Several large facilities are now operational in the milli and submillimetric bands. There is ALMA (Atacama Large Millimeter / submillimeter >>
The Permanent Watch of the Sky
Seeing big is one thing but managing priorities is more important. The era of giant telescopes does not sign the >>
About The Use of Laser Telescope
The laser power of an adaptive optics is about 20 watts if not higher, 4000 times the power of a >>
Professional Astronomy
When you see the size of small astronomical instruments sold in specialty stores, they only impress novices. On the other >>