Christophe posts sporadically on the CN website, and his website is full of interesting and useful information. His latest post on the spectra of Uranus and the north pole is worth looking at.
https://www.cloudynights.com/topic/7...images-albedo/
For beginners it is well worth a look on his website, but the printed version is quite expensive (maybe better for Astro clubs to own a copy for reference purposes).