#spectrograph
Live, measured metrics for the hashtag #spectrograph from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #spectrograph
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 2026-09-13 13:10 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 2026-09-13 13:10 UTCLive pulse
measured · fosstodon.org (Mastodon tag timeline) · fetched 2026-09-13 13:10 UTCEverything below is measured over the latest 13 public posts (spanning ~32183 hours).
Posting hours (UTC) — busiest: 08:00
Languages: English (9) · French (2) · Japanese (1) · Spanish (1)
Avg boosts / post: 1
Top of the latest posts
I started to work on a mini pocket spectrograph, the 3D model will be available for download, I just need to tune a few things. I am also working on a little web based stuff to make sense of the things seen, strictly locally in the browser,
💁🏻♀️ TIL: 🪐🔭 For the first time, astronomers have detected an #atmosphere on a rocky #planet in the habitable zone of another #star. The super-Earth LHS 1140 b, located 50 light years away, shows signs of a #helium dominated atmosphere
SES intègre pour la NASA un spectrographe spatial ultraviolet à bord du satellite SES‑14, une brique clé pour étudier l’atmosphère terrestre 🛰️ https://paperjam.lu/article/news-ses-integre-un-spectrographe-pour-la-nasa?width=800&height=500
What “spectrograph” means
Wiktionary · Wikipediaspectrograph/ˈspɛktɹəˌɡɹæf/
- nounA machine for recording spectra, producing spectrograms.
An optical spectrometer is an instrument used to measure properties of light over a specific portion of the electromagnetic spectrum, typically used in spectroscopic analysis to identify materials. The variable measured is most often the irradiance of the light but could also, for instance, be the polarization state. The independent variable is usually the wavelength of the light or a closely derived physical quantity, such as the corresponding wavenumber or the photon energy, in units of measur
“Optical spectrometer” on Wikipedia (CC BY-SA) →#spectrograph across platforms
every network with a public tag surfaceFollow #spectrograph 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/spectrograph