Definition
The branch of astronomy that involves precise measurement of stellar positions and motions in the sky. This field provides fundamental data for determining distances, proper motions, and the three-dimensional structure of our galaxy.
Etymology
From Greek 'astron' meaning star and 'metron' meaning measure. The field traces back to ancient astronomers who catalogued star positions, but modern astrometry began with Tycho Brahe's precise observations and reached new heights with space missions like Hipparcos and Gaia.
Kelly Says
Astrometry is astronomy's ultimate precision game—the Gaia space telescope can measure stellar positions so accurately that it could detect a human hair's width from 1000 kilometers away! This incredible precision has created a 3D map of over a billion stars, revealing the Milky Way's spiral structure and discovering that our galaxy cannibalized smaller galaxies throughout its history.
Translations
ARالعربية
علم الفلك
ilm al-falak
BNবাংলা
জ্যোতির্মিতি
jyoh-tir-miti
CSČeština
astrometrie
ah-stroh-meh-tree
DADansk
astrometri
ah-stroh-meh-tree
DEDeutsch
Astrometrie
ah-stroh-meh-tree
ELΕλληνικά
αστρομετρία
ah-stroh-meh-tree-ah
ESEspañol
astrometría
ah-stroh-meh-tree-ah
FISuomi
astrometria
ah-stroh-meh-tree-ah
FRFrançais
astrométrie
ah-stroh-meh-tree
HEעברית
אסטרומטריה
ah-stroh-meh-tree-yah
HIहिन्दी
खगोलमिति
khagol-miti
HUMagyar
csillagászat
chee-lah-gah-zat
IDBahasa Indonesia
astrometri
ah-stroh-meh-tree
ITItaliano
astrometria
ah-stroh-meh-tree-ah
JA日本語
天体測量学
ten-tai sokuryō gaku
KO한국어
천체측량학
cheon-che cheuk-ryang-hak
NLNederlands
astrometrie
ah-stroh-meh-tree
NONorsk
astrometri
ah-stroh-meh-tree
PLPolski
astrometria
ah-stroh-meh-tree-ah
PTPortuguês
astrometria
ah-stroh-meh-tree-ah
RORomână
astrometrie
ah-stroh-meh-tree-eh
RUРусский
астрометрия
ah-stroh-meh-tree-yah
SVSvenska
astrometri
ah-stroh-meh-tree
TAதமிழ்
வானவியல்
vah-nah-vee-yal
THไทย
ดาราศาสตร์
dah-ra-sat
TRTürkçe
astrometri
ah-stroh-meh-tree
UKУкраїнська
астрометрія
ah-stroh-meh-tree-yah
VITiếng Việt
thiên văn học
thee-en van hoc
ZH中文
天体测量学
tiān tǐ cè liáng xué