>> I wonder what the history of the Hoag quasars are? I don't know specifically, but probably these are from various tests that Art Hoag did in the 1970s using a 'grism' on the Kitt Peak 3.8-m telescope. (This was a thin prism with grating grooves etched on one side.) He did several fields looking for quasars and blue stars. The 'Hoag xx' names aren't official ones, but probably assigned in the M82 region by the Burbidges, who got spectra to determine redshifts for the quasar candidates. If you want to pursue this, use Chris' image in combination with some on-line image source that gives you coordinates, and then look them up by position in NED (http://nedwww.ipac.caltech.edu), which will give you a bibliography and various data. I did this for 'Hoag 1' a couple days ago (sorry, didn't keep the coordinates). This region is also covered by the Sloan survey, the complete version of which is now accessible the Strasbourg VizieR catalogue looker-upper. This shows good photometry etc in several bands for the quasar (it's a bit brighter than Chris quoted from old data). \Brian -- See message header for info on list archives or unsubscribing, and please send personal replies to the author, not the list.