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The Nautical Sextant | A must-have work for enthusiasts on sextant construction, restoration, repair and adjustment — 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
diamondskyproductions.com ↗	64 match 1 shared topics	Diamond Sky Productions - Planetary Imagery and Animations : Cassini : Saturn : Rings : Moons	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
jacobpare.com ↗	63 match 1 shared topics	NASA Space Showcase – Promoting interest in space through educational articles and stunning imagery.	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	full · 12
siriusfun.org ↗	63 match 1 shared topics	Sirius Fun – Adventure recreation with a purpose	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
sisc.org ↗	63 match 1 shared topics	The Society for International Space Cooperation: Let's Go!	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
astronomyedinburgh.org ↗	63 match 1 shared topics	Astronomy in Edinburgh - Astronomical Society of Edinburgh	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
weatherballoon-shop.com ↗	63 match 1 shared topics	Equipment for your own flight into the stratosphere \| Stratoflights	en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
agronautics.com ↗	63 match 1 shared topics	agronautics	en	space-and-astronomy Tumblr	robotsllmsaihumans	emailphone	partial · 11
wedsum.com ↗	63 match 1 shared topics	Mars Exploration and Science – Moon Station	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
7d-sol.com ↗	63 match 1 shared topics	Satellite Design Tool - LEO Observation Satellite Configuration	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
sirius-starofthemaltesetemples.com ↗	62 match 1 shared topics	Lenie Reedijk - Sirius Star of the Maltese Temples - Book out now	en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
astroleveluppoint.com ↗	62 match 1 shared topics	Astro Level Up Point: Tips for Stargazing and Astronomy	United States~ en	space-and-astronomy	robotsllmsaihumans	emailphone	none
csmc-scms.ca ↗	62 match 1 shared topics	CSMC - The Canadian Strategic Missions Corporation	Canada en	space-and-astronomy	robotsllmsaihumans	emailphone	none
wedsaw.com ↗	62 match 1 shared topics	Astronomy and Space Exploration – Moon Station	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
gardenastronomer.com ↗	62 match 1 shared topics	The Garden Astronomer – Observations Under Suburban Skies	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
mckinleystation.org ↗	62 match 1 shared topics	McKinley Consortium — Permanent Human Civilization Beyond Earth	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
northdevonastronomy.co.uk ↗	62 match 1 shared topics	North Devon Astronomical Society	United Kingdom en	space-and-astronomy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
aac-clyde.space ↗	62 match 1 shared topics	AAC Clyde Space \| Space Data & Satellite Constellation Providers	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
galacticatlas.com ↗	62 match 1 shared topics	Galactic Atlas \| Atlas of the Milky Way	en	space-and-astronomy	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.