sumrak

sumrak

For technical definition, please follow this link to the U.S. Naval Observatory Astronomical Applications website.

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Cải thiện

Thêm hình ảnh

Loại từ: noun
Từ đồng nghĩa:
Blossary:
Ngành nghề/Lĩnh vực: Aerospace
Category: Space flight
Company: NASA
Sản phẩm:
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nautički sumrak

Astronomy; Planetary science

The time when the Sun is 6-12 degrees below the horizon. Sky begins to get noticeably bright.

astromomski sumrak

Astronomy; Planetary science

The time when the Sun is 12-18 degrees below the horizon. When the Sun moves from 19 to 18 degrees below the horizon, astronomers can begin to detect an increase in the brightness ...

astronomski sumrak

Aerospace; Space flight

For technical definition, please follow this link to the U.S. Naval Observatory Astronomical Applications website.

Nautički sumrak

Aerospace; Space flight

For technical definition, please follow this link to the U.S. Naval Observatory Astronomical Applications website.

građanski sumrak

Aerospace; Space flight

For technical definition, please follow this link to the U.S. Naval Observatory Astronomical Applications website.

neidentifikovani leteći objekat (NLO)

Aerospace; Space flight

UFOs are unidentified aircraft which are attributed to alien space flight. One supposed UFO halted air traffic at Hangzhou Airport, China, on July 7. The appearance is being ...

svemirski šatl

Aerospace; Space flight

A reusable spacecraft with wings developed by the U.S. National Aeronautics and Space Administration (NASA) for human spaceflight missions. The first test flight took place in ...

zenit

Aerospace; Space flight

The point on the celestial sphere directly above the observer. Opposite the nadir.

x-zrak

Aerospace; Space flight

Electromagnetic radiation in the neighborhood of 100 picometer wavelength.

x-dijapazon

Aerospace; Space flight

A range of microwave radio frequencies in the neighborhood of 8 to 12 ghz.

težina

Aerospace; Space flight

The gravitational force exerted on an object of a certain mass. The weight of mass m is mg Newtons, where g is the local acceleration due to a body's gravity.