Hi everyone ! I have created this new blog to share more easily my comments about the world of planetary astronomy. Even if I'm already an experienced observer, there are always things to learn and products or techniques to test and I hope to share this here. I will also post informations about the events I'm attending regularly and other stuff. Planetary astronomy today is becoming again a dynamical domain of observation so let's improve and share our passion !
Looking at the spectrum of Venus allows us to understand the behaviour of the available filters! A few images After having discussed the spectrum of Venus, we can now have a closer look at the filters that the amateur can use. We are only going to talk about those who…
By using the same approach as for the Full spectrum of Uranus commented, it is possible to understand many things about the behavior of the filters used to image the planet. First article of a serie dedicated to Venus imaging. Perceived as uniformy white when viewed through a telescope, Venus…
To image details on Uranus, amateurs are using red and/or infrared filters. Spectroscopy is a nice tool to describle the actual effects of those filters…
Spectroscopy is a powerful technique to analyse and understand the celestial objects. It provides us with information about their chemical composition, the quantity of emitted light… Here is a low resolution spectrum of Uranus, commented for pedagogy.
No need of an equatorial plateform anymore!
There are many IR-pass filters on the market. Here is a short guide to help you pick one… or several of them!
When it comes to reveal details on planetary disks, we mainly deal with image processing technics. But in this article I will describe how interesting can be another technic that it is the animation of still images to make planetary globles rotate. I have re-discovered this (by the way not…
One of the biggest dust storms ever observed developped on Mars last summer. This article briefly describes the three states of the dusty martian atmosphere and how they can be identified on images: active storm, decay phase, clear atmosphere.
From August 6th to 9th, 2016, I went back to the Pic du Midi Observatory for a second planetary mission with the 1 meter telescope. It has been a great success especially with Neptune storms imaging!
After the IR-cut article of last time, here is another unavoidable accessory with this color cam (…and every other!): the atmospheric dispersion corrector, or ADC.