About Nightbase✦

Nightbase is a personal astronomy observation logger and planning tool. It is hereby shared with friends who enjoy looking up at the night sky.

A passion project by an amateur astronomer. No subscriptions. No ads. Just the sky.

What it does

Nightbase helps plan and document visual observations of the night sky — from tracking satellite passes and Starlink trains to browsing deep sky catalogs, charting the planets, and keeping a log of what you saw through the eyepiece.

Terms of use

• This is a non-commercial, ad-free website.
• Free to use as it is.
• Users are encouraged to export their observation data and keep their own backups.
• The 'backup' function in the users menu will download all your data in a zip file.

Acknowledgements

Nightbase relies on a number of freely available data sources and open-source libraries. See the Licenses & Attributions page for details.