The telescope aperture classes for the constellation editions are a rule of thumb. If, for example, you have an 8" or larger telescope but observing conditions are less than optimal, you may want to use the 5-6" edition instead. If you have a 5-6" scope and like a challenge, the 8-10" edition will provide plenty.
Click the Index button to download only an edition's index pdf, click the Planfile & Tours button to download only the AstroPlanner planfile(s) and tours. Use the green download button(s) to download a complete edition in the image orientation of your choice. Please read Downloading CSOG and iPad Astronomy.
5-6" Telescopes - 8-10" Telescopes - 12-14" Telescopes
5-6" Telescopes
2431 Objects within reach of telescopes of 5 to 6 inches in aperture.
All objects in the Messier, Dunlop and Lacaille catalogs are included.
Observing guides (pages): 400 (1207)
Index files: 97
AstroPlanner planfiles: 91
Autostar Tours / NexTours / EQTours: 400
Argo Navis User Catalogs: 488
Downloads
- 1 of 2: Andromeda through Horologium
- 2 of 2: Hydra through Vulpecula
229 carbon stars
745 open clusters
161 globular clusters
226 nebulae
173 dark nebulae
106 planetary nebulae
16 supernova remnants
695 galaxies and galaxy groups
75 asterisms
5 other
Click here to review the CSOG image orientations
Unmirrored
MH
MV
MHV
8-10" Telescopes
4561 Objects within reach of telescopes of 8 to 10 inches in aperture.
All objects in the 5-6" edition are included, along with all objects in the Herschel 400, Herschel II and Herschel 3 lists and all objects in Burnham's Celestial Handbook.
Observing guides (pages): 493 (2016)
Index files: 102
AstroPlanner planfiles: 91
Autostar Tours / NexTours / EQTours: 492
Argo Navis User Catalogs: 580
Downloads
- 1 of 3: Andromeda through Cygnus
- 2 of 3: Delphinus through Pavo
- 3 of 3: Pegasus through Vulpecula
350 carbon stars
1360 open clusters
193 globular clusters
328 nebulae
202 dark nebulae
189 planetary nebulae
23 supernova remnants
1785 galaxies and galaxy groups
101 asterisms
30 other
Click here to review the CSOG image orientations
Unmirrored
MH
MV
MHV
12-14" Telescopes
15328 Objects for telescopes of 12 to 14 inches in aperture, or larger.
All objects in the 8-10" edition are included, along with all Herschel objects and many more.
Observing guides (pages): 862 (5943)
Index files: 105
AstroPlanner planfiles: 92
Autostar Tours / NexTours / EQTours: 861
Argo Navis User Catalogs: 950
Downloads
- 1 of 8: Andromeda through Canes Venatici
- 2 of 8: Canis Major through Columba
- 3 of 8: Coma Berenices through Gemini
- 4 of 8: Dorado through Horologium
- 5 of 8: Hydra through Mensa
- 6 of 8: Microscopium through Piscis Austrinus
- 7 of 8: Puppis through Triangulum
- 8 of 8: Triangulum Australe through Vulpecula
866 carbon stars
3660 open clusters (1557 excluding the constellations of Dorado & Mensa)
232 globular clusters
674 nebulae
211 dark nebulae
517 planetary nebulae
67 supernova remnants
8854 galaxies and galaxy groups
128 asterisms
119 other
Click here to review the CSOG image orientations