To begin, I advise you to buy a small bezel 60 mm or 80 mm in diameter and 500 to >>
Category: Astronomy
Advantages and Disadvantages of Space Telescopes
Compared to the 40m diameter ELT, which will likely be used for 100 years and more, the JWST will fail >>
Archaeoastronomy: From the Truth Doc
Before we consider exploring our galaxy and the universe, we must first and foremost place our home, the earth and >>
Our Galaxy
Our Galaxy forms a disc a little thicker in the center that is observed in profile, which is why the >>
The Solar Time or Universal Time of Greenwich
In its daily run through the sky, the Sun offers a great way to know the time. Since it always >>
Why Are There Seasons?
The Earth rotates on itself about an axis which is inclined by about 23 ° 27 ‘with respect to the >>
The Lunar Attraction and The Tides
The Earth attracts the Moon but the Moon, even if it is smaller, also attracts the Earth a bit. As >>
Eclipse of the Moon
About twice a year, the moon becomes orange for several hours. You can easily observe this phenomenon with the naked >>
Phases of the Moon
You have an appointment with the Moon practically every day. It disappears from the sky only when it is facing >>