Downloading CSOG

Registration & support

To download CSOG, registration and a support donation is required, as explained on the registration page.

When registered with a completed donation, CSOG content can be downloaded by logging in and clicking the buttons on the download pages.

Green download buttons

Green buttons download complete CSOG editions: the observing guides, index files, AstroPlanner planfile(s) and Tour files. Some editions are split into multiple downloads. These are large files, often multiple gigabytes in size. Do not use a cellular connection to download.

Blue download buttons

Blue buttons download only an edition's AstroPlanner planfile(s) and Tour files.

White download buttons

White buttons are used for downloads for which registration is not required:

• every edition’s index file
• the current Deep Sky Forum Object of the Week
• the current Webb Deep-Sky Society Objects of the Month
• the current Webb Deep-Sky Society Object of the Season
• the current Astrotreff Object(s) of the Month

CSOG Content

CSOG is downloaded in zipfiles. Large editions are split into multiple downloads. Once unzipped, depending on the edition, the content is sorted by constellations in folders that contain the observing guide(s), an index file, AstroPlanner planfile(s) and the Tour files.

Restrictions & Limitations

Per registration, any edition can be download a maximum of 3 times. That means 3 downloads for each of an edition's 4 image orientation options.

Download troubles

If a download does not start, if a download stalls, if you notice an error, if anything prevents you from successfully downloading CSOG: please let me know.

If you are unable to complete a download but use all three download permissions while trying, please inform me so I can reset your permission(s).

Registered vs. unregistered

Once downloaded and unzipped, CSOG is many pdf files, AstroPlanner planfiles and Tour files. There is not much I can do to prevent a registered user from sharing these files with others.

That being said, I trust you will download and use all CSOG content in good faith. If anyone else takes an interest in your CSOG downloads, please encourage them to register. The support fee is very modest compared to the content you gain access to.

If you obtain CSOG content but are not registered to the CSOG website, please do the honorable thing and register and support.

Without support the CSOG concept can not be maintained, nor expanded.

Thank you for understanding and thank you for your support.