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, the CSOG Release Notes and the article iPad Astronomy.
Burnham's Celestial Handbook - DSO's - Regions in the Large Magellanic Cloud - Named Objects - Astronomy's 101 Weirdest - Herschel Regions
Burnham’s Celestial Handbook - Deepsky Objects
The deep sky objects in the three volumes of Burnham’s Celestial Handbook.
The Burnham's Celestial Handbook - Double Stars edition can be downloaded on the Double Star editions page.
Updated: 22 September 2025 - V3.0.1
Observing guides (pages): 272 (958)
Index files: 86
AstroPlanner planfiles: 86
Autostar Tours / NexTours / EQTours: 269
Argo Navis User Catalogs: 358
288 open clusters
115 globular clusters
114 nebulae
14 dark nebulae
10 HII regions
118 planetary nebulae
6 supernova remnants
1255 galaxies
7 asterisms
10 other
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Regions in the Large Magellanic Cloud
15 Regions in the Large Magellanic Cloud.
Including the "Quadrant Arc", "the Sextant", etc.
Published: 29 November 2024 - V3.0
Observing guides (pages): 16 (40)
Index files: 1
AstroPlanner planfiles: 1
Autostar Tours / NexTours / EQTours: 1
Argo Navis User Catalogs: 1
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Named Objects
969 Named objects.
Updated: 22 September 2025 - V3.0.1
Observing guides (pages): 85 (856)
Index files: 1
AstroPlanner planfiles: 1
75 (double) stars
3 carbon stars
119 open clusters
30 globular clusters
172 nebulae
10 regions
58 dark nebulae
10 integrated flux nebulae
116 planetary nebulae
39 supernova remnants
274 galaxies
45 asterisms
15 other
3 non-existent
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Astronomy Magazine - 101 Weirdest Cosmic Objects
Astronomy Magazine's list of 101 Weirdest Cosmic Objects.
Click here for the 101 Cosmic Objects You Must See list.
Updated: 22 September 2025 - V3.0.1
Observing guides (pages): 100 (233)
Index files: 1
AstroPlanner planfiles: 1
Autostar Tours / NexTours / EQTours: 44
Argo Navis User Catalogs: 45
8 (double) stars
7 open clusters
2 globular clusters
10 nebulae
4 dark nebulae
15 planetary nebulae
5 supernova remnants
37 galaxies & galaxy groups
4 galaxy clusters
1 asterism
5 quasars
3 regions
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Herschel Regions
52 Regions by Friedrich William Herschel.
The work of dr. Arndt Latußeck aided in determining Herschel's sweeps.
These observing guides display the regions Herschel observed. The imagery, observing notes and other information will allow modern day astronomers to draw their own conclusions on Herschel's (perceived) observations.
Published: 22 September 2025 - V3.0
Observing guides (pages): 63 (150)
Index files: 1
AstroPlanner planfiles: 1