1697 Herschel Objects

[glenc]

The following file contains a table and three “maps” showing 1697 deep sky objects seen by William, Caroline and John Herschel. Open clusters are shown to magnitude 10, galaxies to magnitude 12 and all other Herschel objects are listed and mapped.
William and John used an 18.5” speculum mirror reflector, so all of these objects should be visible with a modern 16” telescope.

The following file includes the table of all 1697 objects, some historical information and “maps” showing:
Clusters and nebulae
1009 galaxies to magnitude 12 and
The LMCA table with the Sun's position is also given.

The data is from Bob Erdmann:
The Historically Corrected New General Catalogue™
http://www.ngcic.org/public_HCNGC/HCNGC.htm

[glenc]

The zip file has been updated because there was a mistake in the old one.
Sorry :doh:

[glenc]

The Astronomical League has a William Herschel 400 list.
http://www.astroleague.org/al/obsclubs/herschel/hers400.html

Maybe we could have a John Herschel 400 list for southern observers.
Is there anyone interested in this idea?

[glenc]

Here is a file and three "maps" showing all of the 4517 Herschel objects.
(apart from stars in their catalogues and objects that have not been found)
The three "maps" show:
1. Clusters and nebulae along the Milky Way
2. Galaxies and
3. the LMC