Meanings
nounsidereal time (uncountable)
alternative sideral time
- uncountableastronomyTime measured by the apparent diurnal motion of the vernal equinox; approximated by that based on the rotation of planet Earth relative to the seemingly fixed stars.
Translations
Chinese Mandarin 恆星時 /恒星时
- 恆星時 /恒星时 (héngxīngshí)time measured by apparent motion of vernal equinox
Finnish tähtiaika
- tähtiaikatime measured by apparent motion of vernal equinox
French temps sidéral
- temps sidéraltime measured by apparent motion of vernal equinox
German Sternzeit
- Sternzeittime measured by apparent motion of vernal equinox
Greek αστρικός χρόνος
- αστρικός χρόνος (astrikós chrónos)time measured by apparent motion of vernal equinox
Hindi तारा काल
- तारा काल (tārā kāl)time measured by apparent motion of vernal equinox
Irish am na réaltaí
- am na réaltaítime measured by apparent motion of vernal equinox
Japanese 恒星時
- 恒星時 (kōseiji)time measured by apparent motion of vernal equinox
Polish czas gwiazdowy
- czas gwiazdowytime measured by apparent motion of vernal equinox
Romanian timp sideral, oră siderală
- timp sideraltime measured by apparent motion of vernal equinox
- oră sideralătime measured by apparent motion of vernal equinox
Russian звёздное вре́мя
- звёздное вре́мя (zvjózdnoje vrémja)time measured by apparent motion of vernal equinox
Turkish yıldız zamanı
- yıldız zamanıtime measured by apparent motion of vernal equinox
Ukrainian зо́ряний ча́с
- зо́ряний ча́с (zórjanyj čás)time measured by apparent motion of vernal equinox
Cite this entry
APA
sidereal time. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/sidereal%20time
MLA
“sidereal time.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/sidereal%20time. Accessed November 3, 2026.
Chicago
WatkinsX Dictionary, s.v. “sidereal time,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/sidereal%20time.
Source: sidereal time on Wiktionary, CC BY-SA 4.0.