Category:Sidérostat

**siderostat**
	astronomical instrument which reflects the rays emanated from a celestial object in a constant direction
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Subclass of	astronomical instrument;
Authority file
	Q18599734;
	Reasonator; Scholia; Wikidocumentaries; PetScan; statistics; WikiMap; Locator tool; KML file; Search depicted;

Media in category "Sidérostat"

The following 2 files are in this category, out of 2 total.