Integrated Flux Nebula and Van Den Bergh catalogue

For those of you who made it last night, I hope you enjoyed the talk on faint nebulae. Some links to the info on the internet follow:

Integrated Flux Nebula http://www.galaxyimages.com/UNP1.html

Arp's Loop controversy http://www.cosmotography.com/images/small_ngc3031.html

Van Deb Bergh catalogue http://tvdavisastropics.com/astroimages-1_00008e.htm

Regards

Jeremy