standard ruler

noun

Any astronomical object of known diameter whose distance can then be calculated from the angle it subtends

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Meanings

nounstandard ruler (plural standard rulers)

plural standard rulers

  1. astronomyAny astronomical object of known diameter whose distance can then be calculated from the angle it subtends
Cite this entry
APA

standard ruler. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/standard%20ruler

MLA

“standard ruler.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/standard%20ruler. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “standard ruler,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/standard%20ruler.

Source: standard ruler on Wiktionary, CC BY-SA 4.0.