#lightyear

Live, measured metrics for the hashtag #lightyear from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.

hashtag.org network · sponsored

Own #lightyear

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.

$51.02/ year · 9-character #name
Claim #lightyear — $51.02/yr→Buy on hashtag.space (web3)
card via hashtag.org · tokens via hashtag.space
0
Uses / 7 days
Mastodon
0
Accounts / 7 days
Mastodon
40
Recent posts
Mastodon
~0/hr
Recent pace
Mastodon · last 40
0.3
Avg reactions / post
Mastodon · last 40
—
Reddit posts / month
Reddit search
—
Open-web mentions
hashtag.org Firehose

Day-by-day usage

measured · mastodon.social (Mastodon public tags API) · fetched 2026-09-27 21:03 UTC
0
09-21
0
09-22
0
09-23
0
09-24
0
09-25
0
09-26
0
09-27

0 uses by 0 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 2026-09-27 21:03 UTC

Live pulse

measured · mastodon.social (Mastodon tag timeline) · fetched 2026-09-27 21:03 UTC

Everything below is measured over the latest 40 public posts (spanning ~11919 hours).

Posting hours (UTC) — busiest: 19:00

00:0012:0023:00

Languages: English (24) · Spanish (5) · German (5) · French (1)

Avg boosts / post: 0.3

Top of the latest posts

  • Voyager 1 Is About to Reach One Light-Day from Earth https://scienceclock.com/voyager-1-is-about-to-reach-one-light-day-from-earth/ #HackerNews #Voyager1 #SpaceExploration #LightYear #Astronomy #NASA #ScienceNews

    Hacker News@h4ckernews♥ 3↻ 22025-11-26 15:36 UTCView post →
  • My next move: my savings will move from Interactive Brokers to Lightyear. Earlier I already replaced Vanguard funds with Amundi, now I'm moving my Amundi funds to a European broker. Not everything at once, I start with a portfolio where I h

    euAlternatives@euAlternatives♥ 2↻ 12025-04-19 19:00 UTCView post →
  • @Lazarou RE 100 #lightyear radius, contains more than 10k #starsystems That's a big number, 10,000 in the area about 100 light years away from #earth Sadly many folks who really really 🟢believe in #UFOs aka #UAP aka (unidentified aerial ph

    six_grandfathers_mountain@six_grandfathers_mountain♥ 1↻ 02025-11-08 02:14 UTCView post →

What “lightyear” means

Wiktionary · Wikipedia

lightyear

  • nounA unit of length (abbreviation ly; equal to just under 10 trillion kilometres (1016 metres)) equal to the distance light travels in one Julian year; used to measure extremely large distances.
Full entry on Wiktionary →

A light-year, alternatively spelled light year, is a unit of length used to express astronomical distances and is equal to exactly 9460730472580.8 km, which is approximately 9.46 trillion kilometres or 5.88 trillion miles. As defined by the International Astronomical Union (IAU), a light-year is the distance that light travels in vacuum in one Julian year. Despite its inclusion of the word "year", the term is a unit of distance, not a unit of time.

“Light-year” on Wikipedia (CC BY-SA) →

#lightyear across platforms

every network with a public tag surface

Follow #lightyear 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/lightyear