#Ptolemäus
Live, measured metrics for the hashtag #Ptolemäus from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #ptolemaus
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 · fosstodon.org (Mastodon public tags API) · fetched 2026-08-12 09:59 UTC0 uses by 0 unique accounts across the window. Real per-day counts, not estimates. Newest bar is today so far.
Related hashtags
measured · fosstodon.org (Mastodon public search API) · fetched 2026-08-12 09:59 UTCLive pulse
measured · fosstodon.org (Mastodon tag timeline) · fetched 2026-08-12 09:59 UTCEverything below is measured over the latest 5 public posts (spanning ~19038 hours).
Posting hours (UTC)
Languages: German (5)
Avg boosts / post: 1.8
Top of the latest posts
Letzte Woche konnten wir die restaurierte Cosmographia von Claudius Ptolemaeus aus dem Jahr 1482 ihren Buchpaten Dr. Max und Uschi Reiners präsentieren. Das Kölner Exemplar wurde im Rahmen unseres Buchpatenprogramms „GANZ KÖLN STECKT noch i
Der erste bekannte #Nullmeridian für die Längengrade der Menschheitsgeschichte wurde von Claudius #Ptolemäus in seiner "Geographica" im 2. Jh. v. Chr. durch die Kanarischen Inseln gelegt. Seit 1884 ist der Nullmeridian verbindlich in Greenw
Am Himmel windet sich ein Drache. Und dort findet man alles, was die Astronomie zu bieten hat. Von Sternschnuppen über Exoplaneten bis zur Science Fiction und Galaxienhaufen. Mehr erfahrt ihr in der neuen Folge der Sternengeschichten 🎙️#As
What “ptolemaus” means
WikipediaClaudius Ptolemy, better known mononymously as Ptolemy, was a Greco-Roman mathematician, astronomer, astrologer, geographer, and music theorist who wrote about a dozen scientific treatises, three of which were important to later Byzantine, Islamic, and Western European science. The first was his astronomical treatise now known as the Almagest, originally entitled Mathēmatikḗ Syntaxis. The second is the Geography, which is a thorough discussion on maps and the geographic knowledge of the Greco-Ro
“Ptolemy” on Wikipedia (CC BY-SA) →#ptolemaus across platforms
every network with a public tag surfaceFollow #ptolemaus 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/ptolemaus