English Publications

I. Books

My book "Galaxies and How to Observe Them" (Springer, London-New York) is on the market since Dec. 15, 2006. It covers all aspects about visual observing of galaxies, featuring astrophysics, instruments, observing techniques, objects, and much more.

Download an index of all objects (xls).

Latest review: Davide Pistritto

The extended, English version of my comprehensive study on the history of the NGC  - titled "Observing and Cataloguing Nebulae and Star Clusters - from Herschel to Dreyer's New General Catalogue" - has been published by Cambridge University Press in August 2010.

Look here for an abstract of the book.

Look here for a list of known errors and corrections (xls-file).

Published reviews: Michael Hoskin (pdf), Malcolm Thomson (pdf), Owen Brazell, Lee Macdonald, Hilmar Duerbeck (pdf), misterdeepsky, Sky at Night, Jaakko Saloranta, Barbara Becker (Annals of Science, 2011), Ted Forte (pdf), Woodruff T. Sullivan III (pdf), Hilmar Duerbeck (SuW 11/2011) (pdf), Davide Pistritto

III. Books (co-work)

My "Revised NGC/IC" is used in the NGC-IC Photographic Catalogue by Numazawa and Wakyia. The large-format, 720-page book shows DSS-images of all NGC/IC objects!
For Michael Hoskin's latest book, The Construction of the Heavens: William Herschel's Cosmology (Cambridge University Press, January 2012), I have written comments about the involved deep sky objects. 
William Parsons - 3rd Earl of Rosse(edited by Charles Mollan) appears in Juli 2014 at Manchester University Press. It is the first biography about Lord Rosse and contains my 70-page article Birr Castle observations of non-stellar objects and the development of nebular theories.

III. Articles (since 1996)

  Publication Magazine/Location Year
1 Catalogue of Bright Quasars and BL Lacertae Objects Internet 1998
2 Galaxies in Leo Minor - "The Amateur Deep Field" Mitteil. d. SFB, May-Aug 1998
3 Catalogue of Galaxy Groups Internet 1999
4 Observing list of Bright Quasars Internet 1999
5 Quasars, Active and Compact Galaxies Internet 1999
6 Extragalactic Objects Discovered as Variable Stars Internet 2000
7 Anonymous Galaxies in the NGC 999-Group Magellan 2, issue 1, p. 10 2000
8 Digital Deep-Sky Data, visual Observing and the NGC/IC Project VdS-Journal 1/2000, p. 49 2000
9 On True and False Double Quasars Internet 2000
10 "Superthin Galaxies" - Objects, Sharp as a Razor Blade VdS-Journal 2/2000, p. 71 2000
11 In Quest of "Deep-Sky Comets" [pdf] Internet 2001
12 Cygnus A - Observing an Exceptional Radio Galaxy interstellarum 18 2001
13 Deep Sky Catalogues, the New Uranometria and Other Stories [pdf] Internet 2002
14 Extragalactic Objects Discovered as Variable Stars Webb Deep Sky Society Publication 2002
15 NGC 6822 (Barnard's Galaxy) interstellarum 41, S. 22 2005
16 Object of the Season: NGC 7027 Deep Sky Observer 138, p. 17 2005
17 Object of the Season: NGC 6888 Deep Sky Observer 140, 9 2006
18 Object of the Season: NGC 891 Deep Sky Observer 141, 17-21 2006
19 Review: F. Watson, Stargazer - The Life and Times of the Telescope Deep Sky Observer 142, 27-28 2006
20 M 81 and M 82 - A Nightmare for the Herschel Family [pdf] Internet 2006
21 T. Neckel, H. Vehrenberg: Atlas of Galactic Nebulae (DVD) [pdf] Deep Sky Observer 147, 23-24 2008
22 NGC 4361. History, Data and Observational Results Deep Sky Observer 150, 4-6 2009
23 NGC 7000. History, Data and Observational Results Deep Sky Observer 151, 7-9 2010
24 John Lous Emil Dreyer - A Short Biography [pdf] Internet 2010
25 NGC 7332/39. History, Data and Observational Results Deep Sky Observer 152, 11-12 2010
26 NGC 5053 Deep Sky Observer 153, 5-6 2010
27 Will the "real" NGC 4241 please stand up? [pdf] Amateur Astronomy 67, 15-16 2010
28 Carbon star V Aql [pdf] Deep Sky Observer 154, 11-12 2011
29 Planetary Nebula NGC 246, Cetus Deep Sky Observer 155, 7-11 2011
30 A Website of Deep-Sky Objects [pdf] Journal for the History of Astronomy 42, 521 2011
31 NGC 2362 in Canis Major Deep Sky Observer 156, 13 2012
32 'The Scientific Papers of Sir William Herschel' at 100 [pdf] Astronomy & Geophysics, 53, 2.13 2012
33 The M51 Mystery - Lord Rosse, Robinson and South and the Discovery of Spiral Structure in 1845 [pdf] Journ. Astron. History Heritage, 15, 19-29 2012
34 Review; J. Cavin, The Amateur Astronomer's Guide to Deep-Sky Catalogs [pdf] The Observatory 132, 199-200 2012
35 NGC 4485/90 in Canes Venatici Deep Sky Observer 157, 15-17 2012
36 NGC 6765 in Lyra Deep Sky Observer 158, 4-6 2012
37 NGC 7789 in Cassiopeia Deep Sky Observer 159, 13-16 2012
38 NGC 281 in Cassiopeia Deep Sky Observer 160, 12-14 2013
39 NGC 2419 in Lynx Deep Sky Observer 161, 24-25 2013
40 Review: M. Streicher, Astronomy Delights [pdf] Deep Sky Observer 161, 25-26 2013
41 NGC 6210 in Hercules Deep Sky Observer 162, 20-23 2014
42 NGC 7479 in Pegasus Deep Sky Observer 163, 14-16 2014
43 William Herschel, Flamsteed Numbers and Harris's Star Maps [pdf] Journal for the History of Astronomy 45, 287-303 2014
44 William Herschel's sweeps of the heavens Deep Sky Observer 164, 2-3 2014
45 NGC 2163 in Orion Deep Sky Observer 164, 25-28 2014
46 NGC 5466 in Bootes Deep Sky Observer 165, 25-27 2014
47 NGC 40 in Cepheus Deep Sky Observer 166, 23-26 2015
48 William Herschel and the 'garnet' stars: mu Cephei and more [pdf] Journ. Astron. History & Heritage 18, 199-217 2015
49 NGC 4449 in Canes Venatici Deep Sky Observer 168, 25-28 2015
50 NGC 6572 in Ophiuchus Deep Sky Observer 169, 25-28 2015
51 What Carolie saw? [pdf] Astronomy & Geophysics 56, 5.7 2015
52 The first scientific biography of Lord Rosse Deep Sky Observer 170, 4-5 2016
53 NGC 1+2 in Pegasus Deep Sky Observer 170, 21-24 2016
54 Where to get reliable NGC/IC data? Deep Sky Observer 170, 24-25 2016
55 John Herschel's Cape Observations Deep Sky Observer 171, 3-5 2016
56 NGC 1501 in Camelopardalis Deep Sky Observer 171, 20-23 2016
57 Quasar 3C 273 in Virgo Deep Sky Observer 172, 25-26 2016
58 B 86 / NGC 6520 in Sagittarius Deep Sky Observer 173, 25-27 2016
59 William Herschel’s ‘Hole in the Sky’ and the discovery of dark nebulae Journ. Astron. History & Heritage 19, 305-326 2016
60 NGC 7009 in Aquarius Deep Sky Observer 174, 11-13 2016