http://tech.groups.yahoo.com/group/skychart-discussion/ skychart-discussion Fri, 04 Jul 2008 10:05:18 GMT Hans-Göran Lindberg http://tech.groups.yahoo.com/group/skychart-discussion/message/5254 http://tech.groups.yahoo.com/group/skychart-discussion/message/5254 In the old Varobs you had a option to edit some data files, but i cant find that in the new version included in Skychart. Think thats a big problem because Fri, 04 Jul 2008 01:10:44 GMT klauslms http://tech.groups.yahoo.com/group/skychart-discussion/message/5253 http://tech.groups.yahoo.com/group/skychart-discussion/message/5253 Hello all! Thank you for answering! I will try to translate and understand. I am afraid that it is no easy subjekt at all for me. @Bud: IRAF seems to be Thu, 03 Jul 2008 03:17:30 GMT wrhamblen@... http://tech.groups.yahoo.com/group/skychart-discussion/message/5252 http://tech.groups.yahoo.com/group/skychart-discussion/message/5252 Magnitude per square arc seond is a measure of the surface brightness of an object. You add up the light detected in an angular field one arc second on a side Wed, 02 Jul 2008 16:22:41 GMT klauslms http://tech.groups.yahoo.com/group/skychart-discussion/message/5251 http://tech.groups.yahoo.com/group/skychart-discussion/message/5251 Thank you for answering. My problem is how to compute this measure in catgen to get the necessary data. I have downloaded this catalog last week: HYPERLEDA. I. Wed, 02 Jul 2008 04:28:25 GMT John Mahony http://tech.groups.yahoo.com/group/skychart-discussion/message/5250 http://tech.groups.yahoo.com/group/skychart-discussion/message/5250 ... Major axis is the "long axis" of an ellipse, so this is length along the long axis of the galaxy. ... More specifically, that's 25 magnitude per square Wed, 02 Jul 2008 03:42:20 GMT Ken Harrison http://tech.groups.yahoo.com/group/skychart-discussion/message/5249 http://tech.groups.yahoo.com/group/skychart-discussion/message/5249 Charly, My understanding is that the 25mag/arcsec is very close to the background sky glow and just a measure of brightness. What they are trying to say, is Wed, 02 Jul 2008 00:50:56 GMT klauslms http://tech.groups.yahoo.com/group/skychart-discussion/message/5248 http://tech.groups.yahoo.com/group/skychart-discussion/message/5248 Hello all! Is someone so kind and explain what major axis diameter at 25mag/arcsec2 (from PGC catalogue) means and if there is a connection to magnitude and Mon, 30 Jun 2008 20:32:06 GMT DUPRIEZ Christian http://tech.groups.yahoo.com/group/skychart-discussion/message/5247 http://tech.groups.yahoo.com/group/skychart-discussion/message/5247 Very thanks Jeff for this update Christian ... galaxy ... Galaxy ... catalogue_id=1> ... greater ... for ... visually ... support ... catalog ... or Sat, 28 Jun 2008 22:47:30 GMT Bob Rose http://tech.groups.yahoo.com/group/skychart-discussion/message/5246 http://tech.groups.yahoo.com/group/skychart-discussion/message/5246 Right click on the spot. Then select "finder circle". It the same in V3. The circles will match whatever field (s) you have selected in Preferences > Sat, 28 Jun 2008 22:05:55 GMT peterm1030 http://tech.groups.yahoo.com/group/skychart-discussion/message/5245 http://tech.groups.yahoo.com/group/skychart-discussion/message/5245 Forgive me but after searching the posts I remain confused about how to add Telrad circles on the charts. Thanks, PeterM Sat, 28 Jun 2008 01:42:47 GMT Jeff Burton http://tech.groups.yahoo.com/group/skychart-discussion/message/5244 http://tech.groups.yahoo.com/group/skychart-discussion/message/5244 I am pleased to announce that the 10th revision of the PGC/LEDA galaxy catalog is now available for download. This is the ninth year?two revisions were Wed, 25 Jun 2008 15:23:38 GMT growler3 http://tech.groups.yahoo.com/group/skychart-discussion/message/5243 http://tech.groups.yahoo.com/group/skychart-discussion/message/5243 Thanks for the input. I integrated .hcg into my catalogs in V3. I'm not interested in updating V2.76 so I'll just forget about the other catalogs without .hdr Wed, 25 Jun 2008 14:41:42 GMT John Mahony http://tech.groups.yahoo.com/group/skychart-discussion/message/5242 http://tech.groups.yahoo.com/group/skychart-discussion/message/5242 ... Many of these are from CdC's main download page, so they are either automatically installed when you install the program, or you install them just by Wed, 25 Jun 2008 13:42:05 GMT growler3 http://tech.groups.yahoo.com/group/skychart-discussion/message/5241 http://tech.groups.yahoo.com/group/skychart-discussion/message/5241 To John Mahony: I'm using version 3. To John Stable: Thanks for the info. I'll try the first method. I may have to find the downloaded zip files in my "Down Wed, 25 Jun 2008 13:24:57 GMT John St?hle http://tech.groups.yahoo.com/group/skychart-discussion/message/5240 http://tech.groups.yahoo.com/group/skychart-discussion/message/5240 E.g. Messier has a file named messier.cds This kind of catalogues are installed using an other method than catalogues with a .hdr-file. The proper path for