[sac-forum] Re: SAC H400 List

Verbatim from "Observe the Herschel Objects" by ACAC, third printing 1996 (Branchett & Kemble), Pub. by AL: 

NGC 1750 H-43-8
RA-05h 03.9m; Dec. +23d39m
Large scattered moderately rich star cluster easily resolvable with NGC 1758 H 21-7 on its northeastern edge, both clusters are superimposed upon NGC 1746, which has a diameter of 45', visually all three clusters appear as one. These star clusters are associated with each other. NGC 1746 was discovered by D'Arrest and Dryer described it as a cluster. Poor. This association lays close to 103 Tauri. 

Mine:
NGC 1750/8 12/4/99 Sentinel 27 Pan 14.5" Eq. Inside of a pentagram of bright stars are many blue-gray dimmer stars. Inside NGC 1746 (L&S p. 234.) 

Jack
----- Original Message ----- From: "AJ Crayon" <acrayon@xxxxxxx> 
To: <sac-forum@xxxxxxxxxxxxx>
Sent: Tuesday, January 08, 2008 9:31 PM
Subject: [sac-forum] Re: SAC H400 List



Jack and Chris, can you post the description for NGC1750?
I checked Dr. Corwin's NGC/IC data base and it, somewhat, indicates it being a subgroup of the larger NGC1746.
I have another scatter brain idea. Can some of you post your H400 observation of NGC1750? Here's mine from 1992 - "8" f6; at 60X 5' 10* 9...12m part of NGC1746; field is NGC7146." 

Thanks and clear skies,
aj
----- Original Message ----- From: "Jack Jones" <Telescoper@xxxxxxx> 
To: <sac-forum@xxxxxxxxxxxxx>
Sent: Tuesday, January 08, 2008 9:16 PM
Subject: [sac-forum] Re: SAC H400 List



I have the 3rd edition dated 1996 and it lists 1750 but not 7814.
1750/58 was moved to the Herschel II list. It (they) are subgroups of 1746, which is not itself an H400 object. 

Jack
----- Original Message ----- From: "AJ Crayon" <acrayon@xxxxxxx> 
To: "Chris Hanrahan" <chris.hanrahan@xxxxxxx>; <sac-forum@xxxxxxxxxxxxx>
Sent: Tuesday, January 08, 2008 6:17 PM
Subject: [sac-forum] Re: SAC H400 List
Chris et al, this is just what I was looking for because it is this book from which the SAC Herschel 400 list was derived. I don't know when the changes were made but, perhaps after some discussion, that may be determinable.
It appears the discrepency with these two objects not only includes the Astronomical League but others as well. Others seem to be Skytools from Capellasoft as well as Steven J. O'Mera's "Herschel 400 Observing Guide". 

Will keep everyone posted.

Thanks Chris and clear skies to all,
aj
----- Original Message ----- From: "Chris Hanrahan" <chris.hanrahan@xxxxxxx> 
To: <sac-forum@xxxxxxxxxxxxx>
Cc: "AJ Crayon" <acrayon@xxxxxxx>
Sent: Tuesday, January 08, 2008 4:46 PM
Subject: Re: [sac-forum] Re: SAC H400 List



AJ,
I have a copy of the "Observe the Herschel Objects" by the Ancient City Astronomy Club (brown cover with a sketch of Herschel's 20 ftr) with a copyright date of 2005. This lists 1750 but not 7814. Were you looking for a first or second printing (1980, 1992 respectively)? 
Chris Hanrahan



---- AJ Crayon <acrayon@xxxxxxx> wrote:

=============
Here's an update with additional information. The differences revolve around two objects. NGC1750, an open cluster in Taurus that is on the SAC list, and NGC7814, a galaxy in Pegasus that is not on the SAC list.
In all SAC versions, including the URL below NGC1750 is there but NGC7814 isn't. On lists that are on my hard drive, and dated 1991, the same holds - 1750 is there 7814 isn't.
Anyone have a copy of the early, very early, book on the Herschel 400? I'm speaking of the one with brown cover containing a drawing or picture of Herschel's telescope. What is status of these two obects and the published date of the book. I've just about turned my astronomy stuff downside up looking for my copy and just can't seem to find it. 

Any help out there?

Thanks and clear skies,
aj
----- Original Message ----- From: AJ Crayon 
 To: SAC Forum
 Sent: Tuesday, January 08, 2008 3:21 PM
 Subject: [sac-forum] SAC H400 List


 Anyone have an idea when the Herschel 400 list was posted at the URL
  http://www.saguaroastro.org/content/Herschel-400-objects.htm
There seems to be some difference amongst some of the lists on the internet and I'm trying to see if there is some sort of resolution. The database version is 7.2, but is there a big lag in time before the data was posted. In fact I wasn't aware of the change until today. Prior to that, I believe, was just a catalog type of listing and came from a list dated something like 1991. 

 Thanks and clear skies,
 aj

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