My first Magazine Sky & Telescope - 03.2019 | Page 35

I used Uranometria 2000.0, the Millennium Star Atlas, and the Sky Atlas 2000.0 in addition to printing images from the Space Telescope Science Institute (STScI) website to help fi nd some of the more diffi cult targets. Norton’s Star Atlas used Herschel numbers instead of NGC numbers in its early edi- tions, but it charted only the brightest objects. Obviously, it’s more diffi cult keeping track of 2,500+ objects than the AL’s list of 400 or the Messier 110. In order to avoid confusion, I kept four separate records of my observations. The fi rst were my logbooks, fi fteen of them, dating back to 1974. Second, I checked off each object listed in the NGC 2000.0 catalog. Next was a printout of objects in the catalog in order of NGC numbers. And last was my own printout of the Herschel objects grouped into each of the eight categories of deep-sky objects. I trusted this would eliminate mistakes or omissions. Stepping Up to the Challenge I decided to tally all my observations of Herschel objects after I completed the second 400 list and found they amounted to more than 1,400. My next step was to top the 2,000 mark and, possibly, even expand to more than 2,400 Herschel objects. Which I did. And that’s where I planned to end my search. I figured the increased light pollution near Wagman Observatory and at the nearby dark-sky sites that I frequented would limit my ability to get the more difficult objects: the very faint, very small galaxies near the north pole at +70° to +80° and galaxies and other objects in the southern portion of the sky from –20° to –29°. pu A FINE YEAR When the author completed the Herschel 400 in 1981 (the fi rst “offi cial” batch) he received this certifi cate (right) along with a letter from the Ancient City Astronomy Club’s president at the time (above). The author went on to observe all Herschel objects. sk yandtele scope.com • M A RCH 2 019 33