New CSOG editions for star parties will be available for download, without the need for registration, for the duration of the star party.
If you know of other Star Party Observing Programs that are worth adding to the ever growing collection of CSOG editions, or if you would like to create an observing program to share at a star party you plan on attending: please let me know and I will be happy to compile it.
Click the Index button to download only an edition's index pdf, click the Planfile & Tours buttons to download only the AstroPlanner planfile and tours. Use the green download buttons 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.
GSSP Observing List - GSSP Challenge List - GSSP 2026 Observing Program - GSSP 2025 Observing Program - Texas Star Party 2026 - Texas Star Party 2025 - Texas Star Party Binocular Programs - Starnights 2025 - Stellafane 2025 - Eldorado 2025
Golden State Star Party - Observing List
The objects in the General Observing List for the Golden State Star Party, in CSOG format.
Published: 20 June 2026
To download this star party observing program, registration is not required for the duration of the 2026 Golden State Star Party.
Observing guides (pages): 87 (216)
Index files: 1
AstroPlanner planfiles: 1
Autostar Tours / NexTours / EQTours: 23
Argo Navis User Catalogs: 24
26 open clusters
6 globular clusters
7 nebulae
3 dark nebulae
18 planetary nebula
2 supernova remnants
26 galaxies & galaxy groups
Golden State Star Party - Challenge List
The objects in the Challenge List for the Golden State Star Party, in CSOG format.
Published: 20 June 2026
To download this star party observing program, registration is not required for the duration of the 2026 Golden State Star Party.
Observing guides (pages): 42 (99)
Index files: 1
AstroPlanner planfiles: 1
Autostar Tours / NexTours / EQTours: 20
Argo Navis User Catalogs: 21
2 open clusters
8 globular clusters
5 nebulae
2 dark nebulae
11 planetary nebula
13 galaxies & galaxy groups
1 galaxy cluster
1 quasar
Golden State Star Party - 2026 Observing Program
The objects in the 2026 Observing Program for the Golden State Star Party, in CSOG format.
In this Star Party Observing Program 'fields' are used to sort objects: several objects, sometimes of different nature, in close proximity. The index, the AstroPlanner planfile and the Tour files reflect this.
Published: 9 July 2026
To download this star party observing program, registration is not required for the duration of the 2026 Golden State Star Party.
Observing guides (pages): 96 (236)
Index files: 1
AstroPlanner planfiles: 1
Autostar Tours / NexTours / EQTours: 43
Argo Navis User Catalogs: 44
7 open clusters
14 globular clusters
12 nebulae
1 region
11 dark nebulae
14 planetary nebula
9 supernova remnants
27 galaxies & galaxy groups
1 galaxy cluster
1 star cloud
1 asterism
2 double stars
1 X-Ray source
Golden State Star Party - 2025 Observing Program
The objects in the 2025 Observing Program for the Golden State Star Party, in CSOG format.
Published: 20 June 2026
To download this star party observing program, registration is not required for the duration of the 2026 Golden State Star Party.
Observing guides (pages): 63 (148)
Index files: 1
AstroPlanner planfiles: 1
Autostar Tours / NexTours / EQTours: 17
Argo Navis User Catalogs: 18
1 carbon star
4 open clusters
4 globular clusters
17 nebulae
6 dark nebulae
1 region
11 planetary nebula
2 protoplanetary disks
7 supernova remnants
3 galaxies
2 (super)novae
1 star cloud
2 double stars
1 star
Texas Star Party 2026 - Telescope Observing Club Challenge
The objects in the Telescope Observing Club Challenge for the 2026 Texas Star Party, in CSOG format.
Published: 18 April 2026
Observing guides (pages): 25 (62)
Index files: 1
AstroPlanner planfiles: 1
Autostar Tours / NexTours / EQTours / Argo Navis User Catalogs: 17
1 carbon star
2 open clusters
4 globular clusters
5 planetary nebulae
13 galaxies & galaxy groups
Click here to review the CSOG image orientations
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Texas Star Party 2026 - Advanced Observing Program
The objects in the Advanced Observing Program - "William Herschel" for the 2026 Texas Star Party, in CSOG format.
Published: 18 April 2026
Observing guides (pages): 40 (99)
Index files: 1
AstroPlanner planfiles: 1
Autostar Tours / NexTours / EQTours / Argo Navis User Catalogs: 19
8 open clusters
7 globular clusters
1 nebula
5 planetary nebulae
19 galaxies & galaxy groups
Click here to review the CSOG image orientations
Unmirrored
MH
MV
MHV
Texas Star Party 2025 - Regular Observing Program
The objects in the Regular Observing Program for the 2025 Texas Star Party, in CSOG format.
Updated: 22 September 2025
Observing guides (pages): 39 (96)
Index files: 1
AstroPlanner planfiles: 1
Autostar Tours / NexTours / EQTours / Argo Navis User Catalogs: 26
4 open clusters
7 globular clusters
2 nebulae
8 planetary nebulae
1 protoplanetary disk
16 galaxies & galaxy groups
1 star cloud
1 double star
Click here to review the CSOG image orientations
Unmirrored
MH
MV
MHV
Texas Star Party 2025 - Advanced Observing Program
The objects in the Advanced Observing Program for the 2025 Texas Star Party, in CSOG format.
Updated: 22 September 2025
Observing guides (pages): 43 (108)
Index files: 1
AstroPlanner planfiles: 1
Autostar Tours / NexTours / EQTours / Argo Navis User Catalogs: 25
2 open clusters
4 globular clusters
3 nebulae
5 dark nebulae
4 planetary nebulae
1 protoplanetary disk
3 supernova remnants
13 galaxies & galaxy groups
1 galaxy cluster
4 quasars
2 stars
1 asterism
Click here to review the CSOG image orientations
Unmirrored
MH
MV
MHV
Texas Star Party - Binocular Observing Program
The objects in the Binocular Observing Program for the 2025 Texas Star Party, in CSOG format.
Updated: 22 September 2025
Observing guides (pages): 50 (68)
Index files: 1
AstroPlanner planfiles: 1
30 open clusters
14 globular clusters
3 nebulae
1 planetary nebula
1 galaxy
1 star cloud
Texas Star Party - Challenge Binocular Program
The objects in the Challenge Binocular Program for the 2025 Texas Star Party, in CSOG format.
Updated: 22 September 2025
Observing guides (pages): 25 (38)
Index files: 1
AstroPlanner planfiles: 1
6 globular clusters
19 galaxies & galaxy groups
Texas Star Party - Binocular Program from "Hell"
The objects in the Binocular Program from "Hell" for the 2025 Texas Star Party, in CSOG format.
Updated: 22 September 2025
Observing guides (pages): 25 (41)
Index files: 1
AstroPlanner planfiles: 1
1 globular cluster
1 planetary nebula
23 galaxies & galaxy groups
Starnights 2025 - Observing Program
The Observing Program for Starnights 2025.
Updated: 22 September 2025
Observing guides (pages): 40 (94)
Index files: 1
AstroPlanner planfiles: 1
Autostar Tours / NexTours / EQTours: 19
Argo Navis User Catalogs: 20
3 carbon stars
9 open clusters
4 globular clusters
2 nebulae
11 planetary nebulae
2 supernova remnants
9 galaxies & galaxy groups
Click here to review the CSOG image orientations
Unmirrored
MH
MV
MHV
Starnights 2025 - Challenge Observing Program
The Challenge Observing Program for Starnights 2025.
Updated: 22 September 2025
Observing guides (pages): 40 (110)
Index files: 1
AstroPlanner planfiles: 1
Autostar Tours / NexTours / EQTours: 20
Argo Navis User Catalogs: 21
3 carbon stars
3 open clusters
1 globular cluster
10 nebulae
1 region
8 planetary nebulae
1 supernova remnant
12 galaxies & galaxy groups
1 quasar
1 star cloud
Click here to review the CSOG image orientations
Unmirrored
MH
MV
MHV
Starnights 2025 - Binocular Observing Program
The Binocular Observing Program for Starnights 2025.
Updated: 22 September 2025
Observing guides (pages): 40 (54)
Index files: 1
AstroPlanner planfiles: 1
15 open clusters
6 globular clusters
4 nebulae
2 dark nebulae
3 planetary nebula
1 supernova remnant
3 galaxies & galaxy groups
3 asterisms
Stellafane 2025 - Observing Olympics
The objects in the Stellafane 2025 Observing Olympics, in CSOG format.
Updated: 22 September 2025
Observing guides (pages): 29 (72)
Index files: 1
AstroPlanner planfiles: 1
Autostar Tours / NexTours / EQTours: 13
Argo Navis User Catalogs: 14
3 open clusters
3 globular clusters
4 nebulae
3 dark nebula
3 planetary nebulae
2 supernova remnants
7 galaxies & galaxy groups
2 quasars
Click here to review the CSOG image orientations
Unmirrored
MH
MV
MHV
Stellafane 2025 - Binocular Observing Olympics VII
The objects in the Stellafane 2025 Binocular Observing Olympics VII, in CSOG format.
Updated: 22 September 2025
Observing guides (pages): 19 (29)
Index files: 1
AstroPlanner planfiles: 1
2 stars
5 open clusters
2 globular clusters
3 nebulae
1 dark nebula
3 planetary nebula
3 galaxy
2 asterisms
Eldorado Star Party - 2025
The objects in the Eldorado 2025 Star Party observing program, in CSOG format.
This list of objects was provided by the Eldorado Star Party.
Published: 15 October 2025
Observing guides (pages): 26 (64)
Index files: 1
AstroPlanner planfiles: 1
Autostar Tours / NexTours / EQTours: 10
Argo Navis User Catalogs: 11
1 carbon star
8 open clusters
5 nebulae
1 planetary nebula
9 galaxies & galaxy groups
2 double stars
Click here to review the CSOG image orientations