"Historic Au" - Explanation

Dr. Wolfgang Steinicke

2 February 2021

The "Historic Au" contains the list of 50 new nebulae, published 1862 by Arthur Auwers:

William Herschel's Verzeichnisse von Nebelflecken und Sternhaufen. Astronomische Beobachtungen auf der Königlichen Universitäts-Sternwarte zu Königsberg 34, 155-229 (1862)

The objects in my file are sorted by Auwer's number (see explanation of columns below). Click here for download (xls-File). All information presented here is part of my scientific research. My book "Obervation and Cataloguing Nebulae and Star Clusters - from Herschel to Dreyer's New General Catalogue" contains more information about this data. It has been published in August 2010 (see here; a german version is on the market since January 2009).

All data are copyright by the author and, if used in a publication or in other datasets, must be credited properly (please inform me in any case). Please inform the author about any errors found in the dataset.


Columns in the "Historic Au"

Au Auwer's number
NGC NGC-number
GC No. in J. Herschel's General Catalogue
Discoverer Name of discoverer
Y, M, D Date of discovery
Ap Aperture of discovery telescope (inch)
Type of discovery telescope: Rl = Reflector, Rr = Refractor
Independent (later) discoverer
RH ... DS
Rect. & Decl. for 2000.0 (from Revised NGC/IC)
Visual magnitude (from Revised NGC/IC)
Constellation (from Revised NGC/IC)
Object type (from Revised NGC/IC)
S Object status: 1 = galaxy, 2 = galactic nebula, 3 = planetary nebula, 4 = open cluster, 5 = globular cluster, 6 = part of nebula, 7 = NGC dublicate, 9 = star(s), 10 = not found
Remarks Other designations or observers