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Star Trackers|Star Sensor|Sun Sensor|Star Simulator|Ground Support Equipment-TY-Space — 18 websites ranked by shared content topics, category and on-page relevance.

Each result shows its full tech stack, contacts and AI-policy — not just a name · Browse all sites in Space And Astronomy →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
britastro.org ↗	60 match shared topic	British Astronomical Association – Supporting amateur astronomers since 1890	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
rocketcenterfoundation.org ↗	60 match shared topic	Rocket Center Foundation – Supporting the mission of the U.S. Space and Rocket Center	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
asteroskopeion.com ↗	60 match shared topic	Shop Telescopes and Astronomy Equipment at 1010 Cosmos in Larnaca, Cyprus \| Visit Us Today!	en	space-and-astronomy Wix Wix Stores	robots llmsaihumans	emailphone	none
nasa.gov ↗	55 match shared topic	NASA	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
chaoxing.com ↗	55 match shared topic	超星	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
esa.int ↗	55 match shared topic	European Space Agency	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
hamqsl.com ↗	55 match shared topic	HF Propagation and Solar-Terrestrial Data Website	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
spacetourismhq.com ↗	55 match shared topic	Space Tourism HQ LLC	en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
space.com ↗	55 match shared topic	Space.com: NASA, Space Exploration and Astronomy News	United States~ en	space-and-astronomy	robotsllmsaihumans	emailphone	none
copernicus.eu ↗	55 match shared topic	Homepage \| Copernicus	European Union en	space-and-astronomy Drupal	robotsllmsaihumans	emailphone	none
eso.org ↗	55 match shared topic	ESO	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
moonconnection.com ↗	55 match shared topic	Moon Information Resource And Guide	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
rocket.domains ↗	55 match shared topic	Rocket: Light Years Ahead	en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
rasc.ca ↗	55 match shared topic	RASC \| Inspiring Interest and Knowledge of Astronomy Since 1868	Canada en	space-and-astronomy Drupal	robotsllmsaihumans	emailphone	none
hubblesite.org ↗	55 match shared topic	Hubble Space Telescope - NASA Science	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
cleardarksky.com ↗	55 match shared topic	ClearDarkSky	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
planetary.org ↗	55 match shared topic	The Planetary Society	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
astronomy.com ↗	55 match shared topic	Astronomy Magazine: Space News, Observing, Planets, Galaxies	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none

How the match score works

Each match is a 0–100 similarity score — the higher it is, the more two sites resemble one another. It’s computed automatically from our own crawl data (never from what a site says about itself) by combining several independent signals, so a high score means several of them point the same way:

shared topics how many of the same fine‑grained content topics (IAB sub‑categories) both sites cover — the main signal.
same category whether they sit in the same business / industry category.
content & title how closely their titles and page descriptions line up in wording and meaning.

No single signal decides the result — they’re blended together. Treat the score as a way to rank candidates rather than an absolute percentage; the chips on each result show which signals contributed.