Author Christophe Pellier

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 !

Planetology
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Some quality Uranus articles by the Planetary Society

I have recently found again some blog articles posted on the web site of the Planetary society. This site welcomes several blogs, among them one held by Emily Lakdawalla who regularily publishes posts of excellent quality about planetary news – her Uranus articles are especially fine and they should be…

Planetology
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Observing Venus in near IR : our conference at the EPSC 2013

Observing Venus is one of the most interesting planetary observations accessible to amateurs. The planet is mostly observed in violet and ultraviolet as these colors show the most contrasted details. However there is another fascinating wavelength that gives access to a different cloud layer and even to the surface of…

Video acquisition
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Taking CH4 images of Jupiter

The methane filter (CH4) is a filter whose very narrow transmission is centered around one of the CH4 absorption band in the near infrared at 890 nm. That filter is very interesting because in contrary to all others, it does not reveal information relative to color differences (the albedo) but…

Planetology
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Neptune, the new amateur boundary ?

In 2012 we saw the amateurs broke a new border by imaging for the first time non ambiguous details on Uranus. In 2013, this is maybe the turn of Neptune ! But what can we see on Neptune ? Neptune is planet rather similar to Uranus: its very cold color…

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