CSOG 2.4 Release Notes

CSOG 2.4 was published on 23 June 2021, a little over a year after CSOG 2.3 was released.

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New editions

3 New editions were added and incorporated into existing editions, 2 observing aids were added:

• Karachentseva Northern Isolated Triplets of Galaxies
• Karachentseva Southern Isolated Triplets of Galaxies
• Astronomical League Carbon Stars Observing Program
• Sync Charts & Tours for use with goto telescopes
• Celestial Poles

Updated content

• Original catalogue notes from Hickson, Zwicky, Vorontsov-Vel'yaminov and more are added to the "by object" guides for Hickson, Arp, KTG, KTS, Holmberg etc. Where notes from the original Vorontsov-Vel'yaminov paper are added, these are marked by VV (without an apostrophe). Where the comments to the galaxies in the Morphological catalogue by Vorontsov-Vel'yaminov et al. are added, these are marked by VV' (with the apostrophe);
• Countless updates to and corrections of existing content, along with lots of cosmetic tweaks;
• Objects added: 100 named objects, over 200 galaxies added to the 12-14" Constellation edition, and more;
• With the addition of the Sync Charts & Tours for use with goto telescopes, the synchronisation stars that were a part of all Autostar Tours, NexTours and EQTours in CSOG 2.3, are removed in CSOG 2.4.

CSOG 2.4 Statistics

• 58 Editions and 1 observing aid;
• > 725 gigabytes of content;
• > 100,000 files, of which:
  • > 40,000 pdf's
  • 532 Unique AstroPlanner planfiles;
  • 3688 Unique Autostar Tours, NexTours and EQTours;
  • 4142 Unique Argo Navis User Catalogs

Registration & Support

With the publication of CSOG 2.4, registration and a support donation is required to download the Clear Skies Observing Guides: a modest fee to support the creation and publication of CSOG.

All CSOG 2.4 Editions