Leave blank to generate from the title. Changing this changes the live URL.

Free text, display only. The object link is resolved server-side.

The night the photons were collected.

Category and name together must be unique.

Lower sorts first, within the category.

Normalised server-side: M 31 and ngc0224 both become the URL key. It is the page URL, so it cannot be changed later.

Drives the grouping on /objects.

Full IAU name, not the three-letter abbreviation.

Messier number, else 1000 + NGC number, else 2000 + IC number.

J2000, 0 to 24.

J2000, -90 to +90.

Leave empty rather than guessing.

Leave blank to generate from the title. Changing this changes the live URL.

Comma-separated. Display only.

Required to publish: it is the og:image and the index card.

Leave blank to generate from the title.

Falls back to the first published member when empty.

Lower sorts first on /collections.

Leave blank to generate from the title.

Entered and stored as UTC, never your local zone. The public page converts to each reader's zone.

UTC as well. Leave empty for an instantaneous event.

Optional soft link to a catalogue object. Normalised server-side.

The computed slot this curated row replaces. Nothing reads it yet.