Introduction La Lune fascine l’humanité depuis la nuit des temps. Visible à l’œil nu comme le plus brillant astre du ciel nocturne, elle a longtemps nourri légendes et curiosités. Pourtant, ce n’est qu’en 1609 que Galilée observa pour la première fois ses reliefs à l’aide d’une lunette astronomique . Depuis, la Lune n’a cessé d’être […]
The best places for stargazing in Switzerland Introduction Switzerland offers unique conditions for stargazing, combining sumptuous tourist landscapes with relatively unspoilt skies. Thanks to its high mountains and remote regions, the country ranks among the best astronomical sites in Central Europe. At altitude, [...]
When you're a beginner choosing a telescope, the optical jargon can seem intimidating. Should you opt for high "magnification"? A large "diameter"? A long focal length? Am I supposed to care about the f/d ratio? Don't panic, let's untangle these fundamental notions of telescope optics together. In this article, we're going to [...]
Published May 10, 2025 - updated regularly Choosing your first telescope: an ultra-complete beginner's guide 2025 1. Why invest in a telescope? Becoming an amateur astronomer means opening a window on the Universe: lunar craters, the phases of Venus, the rings of Saturn, distant galaxies... all accessible from your garden or balcony. Astronomy also offers many [...]
How to choose an eyepiece for your telescope? Choosing the right eyepieces is essential to getting the most out of your telescope. This guide explains what an eyepiece is and its role in the optical chain, how its focal length determines magnification, the importance of the apparent and real field of view, the differences between 1.25" and 2" formats, [...].
