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United States Naval Observatory: atrofda nima bor, qanday yetib borish va qachon borish · 2026

The United States Naval Observatory (USNO) is a scientific and military facility that produces geopositioning, navigation and timekeeping data for the United States Navy and the United States Department of Defense.

United States Naval Observatory · CC BY-SA 4.0

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United States Naval Observatory suratlarda4 ta surat
Template:US Naval Observatory · pdm · 1-dek, 1882
MBisanz · cc-by-sa-3.0 · 16-noy, 2009
National Photo Company · pdm · 24-yan, 1925

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2 manba · 4-noyabr, 2026 holatiga ko‘ra
Manba: TravelHub · OurAirports (public domain)