Last updated 14 August 2026
Short version: the Chatstronomy application runs on your computer, talks to nothing of ours, and sends us nothing about you or your equipment.
This covers the self-hosted application as it stands today. A coordinating service for running several observatories together is planned; it does not exist yet, and when it does it will carry its own statement of what it holds. This page will not be stretched to cover it after the fact.
Nothing. There is no account, no telemetry, no analytics in the application, no crash reporting, and no licence check. In this version the program never contacts us, so there is no channel through which we could collect anything even if we wanted to.
That is the whole of it. Removing the program and those files removes everything it kept.
Whatever you configure it to post: images, autofocus results, equipment status, and session progress. It goes directly from your machine to that service, using your own bot credentials, and is then held by that service under its terms — the Discord Privacy Policy, or your Matrix homeserver's policy.
We cannot see it, retrieve it, or delete it. If you need something removed from a channel, that is between you and the chat service.
Worth remembering: astronomical images carry headers describing equipment and, often, where and when they were taken. Anyone who can read the channel can read those.
If you enable control, the bot reads the Discord user ID of whoever ran the slash command so it can check the allow list you configured. That comparison happens on your machine and is not reported anywhere. See the terms for what enabling control means for your equipment.
chatstronomy.com is static pages. The server keeps ordinary web access logs, which include IP addresses, for operating and securing the site. The site sets no cookies of its own.
Chatstronomy is not directed at children, and we hold no data about anyone.