Definition
The apparent shift in position of a nearby star against the background of distant stars when viewed from opposite sides of Earth's orbit. This geometric effect allows astronomers to measure stellar distances directly.
Etymology
From Greek 'parallaxis' meaning 'alteration,' combining 'para' (beside) and 'allassein' (to change). The concept was known to ancient Greeks, but stellar parallax wasn't detected until 1838 due to the enormous distances involved.
Kelly Says
The nearest star's parallax is so tiny it's like seeing a quarter from 3 miles away shift by the width of a human hair! This minuscule angle of 0.76 arcseconds took centuries to detect and proved that stars are incredibly far away.
Translations
AMአማርኛ
parallax
pa-ra-laks
ARالعربية
انحراف
in-ha-raf
BNবাংলা
প্যারাল্যাক্স
pa-ra-laks
CACatalà
parallax
pa-ra-laks
CSČeština
parallax
pa-ra-laks
DADansk
parallax
pa-ra-laks
DEDeutsch
Parallax
pa-ra-laks
ELΕλληνικά
παραλλέλεια
pa-ra-lle-leia
ESEspañol
paralaje
pa-ra-la-he
FISuomi
parallaksi
pa-ra-laks-i
FRFrançais
parallaxe
pa-ra-laks
HIहिन्दी
पैरालेक्स
pa-i-ra-leks
HUMagyar
parallax
pa-ra-laks
IDBahasa Indonesia
parallax
pa-ra-laks
ITItaliano
parallasse
pa-ra-las-se
KO한국어
parallax
pa-ra-laks
MSBahasa Melayu
parallax
pa-ra-laks
MYမြန်မာ
parallax
pa-ra-laks
NLNederlands
parallaxe
pa-ra-laks
NONorsk
parallax
pa-ra-laks
PLPolski
parallax
pa-ra-laks
PTPortuguês
parallax
pa-ra-laks
RORomână
parallax
pa-ra-laks
RUРусский
параллакс
pa-ra-laks
SVSvenska
parallax
pa-ra-laks
SWKiswahili
parallax
pa-ra-laks
TAதமிழ்
பார்வையியல்
pa-ar-va-iya-l
THไทย
parallax
pa-ra-laks
TRTürkçe
paralaks
pa-ra-laks
UKУкраїнська
паралакс
pa-ra-laks
VITiếng Việt
phản chiếu
phan-chi-ew