#planetarium
Live, measured metrics for the hashtag #planetarium from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #planetarium
This #name is available to claim. It becomes your portal on the open agent web: this very page, a keyword you rank for by an open public stake, and a verifiable identity for AI agents. Nobody else sells a page like this for every #name.
Day-by-day usage
measured · mastodon.social (Mastodon public tags API) · fetched 2026-10-22 11:33 UTC4 uses by 4 unique accounts across the window. Real per-day counts, not estimates. Newest bar is today so far.
Related hashtags
measured · mastodon.social (Mastodon public search API) · fetched 2026-10-22 11:33 UTCLive pulse
measured · mastodon.social (Mastodon tag timeline) · fetched 2026-10-22 11:33 UTCEverything below is measured over the latest 40 public posts (spanning ~2295 hours).
Posting hours (UTC) — busiest: 11:00
Languages: German (24) · English (10) · French (2) · Lithuanian (1) · Dutch (1)
Avg boosts / post: 2.2
Top of the latest posts
Zum zweiten Mal nach 2024 - https://www.facebook.com/dan.fischer.393/posts/pfbid02knUTDFfkRzeUNYeAYg7GG8R1FezNHBEpDxM8CxCMWWzf85V7oK1NneiKCikB6Ei8l - fand heute Abend wieder eine "Lange #Lightpainting-Nacht mit Mike Großhanten am #Planetari
Come join us on August 12th in celebrating a partial solar eclipse and the Perseids meteor shower! Experience shows in a mobile planetarium, hands-on experiments, lectures – and, of course, sky observations. https://www.mps.mpg.de/lange-nac
Sternenhimmel, ferne Welten, Wunder des Kosmos | Veranstaltungen im mobilen Planetarium in Göttingen vom 05. bis 09. Oktober 2026 | Kartenreservierungen ab 4 Wochen vor dem jeweiligen Vorstellungsbeginn Im Planetarium — dem Himmel ein Stüc
What “planetarium” means
Wiktionary · Wikipediaplanetarium/plænɪˈtɛːɹɪəm/
- nounA display museum in which images of stars and other astronomical phenomena are projected onto a domed ceiling.
A planetarium is a theatre built primarily for presenting educational and entertaining shows about astronomy and the night sky, or for training in celestial navigation.
“Planetarium” on Wikipedia (CC BY-SA) →#planetarium across platforms
every network with a public tag surfaceFollow #planetarium straight to each platform’s own tag page. Where a platform publishes open data we measure it above; the rest lock their numbers behind paid APIs, so we link rather than guess.
Every number above is measured from a named public API at the shown fetch time. Nothing is estimated or extrapolated. Platforms that lock their data behind paid APIs are not shown. Agents: the same numbers, as JSON, at /api/hashtags/planetarium