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…
I briefly go back to Jupiter CH4 images. On my tutorial I said that the best processing method was the stacked image of WinJupos video de-rotation instead of the “corrected video”. I made again some tests with my last CH4 image and this is confirmed! When making video de-rotation with…
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…
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…
I have participated last week-end in London to the amateur session of the European Planetary Science Congress (EPSC) 2013. A great moment for amateur astronomy but not only!
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…
There are many processing software for planetary imaging, and many are excellents. But to finalise the processing, and whatever software I have used, I always go back to Registax 6 ! Here is why…
Note: the guide has been updated in the e-book “Get successful planetary images” This week I propose you some content under a different form: instead of a new article, I have just finished to write a small practical guide “10 steps to get successful planetary images”.
Sampling is a basic notion of CCD imaging. What it is exactly ?
The pro/am cooperation in planetary astronomy is currently experimenting a serious renewal. On june 7, 8 and 9, the Astronomical society of Touraine (SAT), in France, organized the astronomical nights of Touraine, a week-end of observations for amateurs. Several speakers had been invited by the SAT to give talks on…