sidereal

(sī-dîr'ē-əl)
adj.

1. Of, relating to, or concerned with the stars or constellations; stellar.
2. Measured or determined by means of the apparent daily motion of the stars: sidereal time.

[From Latin sīdereus, from sīdus, sīder-, constellation, star.]

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[Etymology: Lat: ‘star’] astronomy A version of a unit with size determined by reference to the stars. For Sidereal Hour Angle see right ascension, otherwise see…, e.g. for sidereal year, see year.

of, relating to, or expressed in relation to stars or constellations: astral

IN BRIEF: Relating to the stars.

Sidereal time is related to the distant stars and allows you to keep track of astronomical events.

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Of or pertaining to the stars. Although sidereal generally refers to the stars and tropical to the vernal equinox, sidereal time and the sidereal day are based upon the position of the vernal equinox relative to the meridian. The sidereal year is based upon the stars.

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For a list of words related to sidereal, see:

• Branches, Laws, Theories, and Techniques - sidereal: (adj) expressed or measured in reference to stars

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See words rhyming with "sidereal."

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Common misspelling(s) of sidereal

• sideral
• sedereal

Dansk (Danish)
adj. - siderisk, stjerne-

Nederlands (Dutch)
siderisch, astrologisch

Français (French)
adj. - sidéral

Deutsch (German)
adj. - siderisch, Sternen-

Ελληνική (Greek)
adj. - (αστρον.) αστρικός

Italiano (Italian)
sidereo

Português (Portuguese)
adj. - sideral

Русский (Russian)
звездный

Español (Spanish)
adj. - sideral, astral

Svenska (Swedish)
adj. - siderisk, stjärn-

中文（简体）(Chinese (Simplified))
星的, 恒星的, 根据恒星测定的

中文（繁體）(Chinese (Traditional))
adj. - 星的, 恆星的, 根據恆星測定的

한국어 (Korean)
adj. - 별의, 항성의

日本語 (Japanese)
adj. - 星の, 恒星の, 星座の

العربيه (Arabic)
‏(صفه) نجمي أو فلكي‏

עברית (Hebrew)
adj. - ‮של המזלות שבשמיים או כוכבי-שבת‬

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