#castellanus
Live, measured metrics for the hashtag #castellanus from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #castellanus
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Day-by-day usage
measured · fosstodon.org (Mastodon public tags API) · fetched 2026-09-27 11:58 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 2026-09-27 11:58 UTCLive pulse
measured · fosstodon.org (Mastodon tag timeline) · fetched 2026-09-27 11:58 UTCEverything below is measured over the latest 4 public posts (spanning ~25823 hours).
Posting hours (UTC)
Languages: English (4)
Avg boosts / post: 0
Top of the latest posts
Beautiful elevated shower overhead in #Dorset. #altocumulus #castellanus #asperitas #mamma #lacunosus #virga
Once again our warmest day of the year here in #Dorset with a high of 30.7°C. There are now some interesting lines of #Altocumulus #castellanus (Ac cas) building from the SW signalling change ahead.
Nice to see some sky interest this evening in #Dorset with #altocumulus #floccus and #castellanus producing some elevated showers with #virga.
What “castellanus” means
WikipediaA castellanus, or castellatus, is a cloud that displays at least in its upper part cumuliform protuberances having the shape of turrets that give a crenellated aspect. Some of these turrets are higher than they are wide; they have a common base and seem to be arranged in a line. The castellanus characteristic is particularly obvious when the clouds are observed from the side.
“Castellanus” on Wikipedia (CC BY-SA) →#castellanus across platforms
every network with a public tag surfaceFollow #castellanus 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/castellanus