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Last quarter moon comes about three weeks after new moon. Now, as seen from above, the moon in its orbit around Earth is at right angles to a line between the Earth and sun. The moon is now three-quarters of the way around in its orbit of Earth, as measured from one new moon to the next.

A last quarter moon looks half-illuminated. It rises around midnight, appears at its highest in the sky at dawn, and sets around noon. After this, the moon will begin edging noticeably closer to the sun again on the sky's dome. Fewer people notice the moon during the day from about last quarter on, because the sun's glare begins to dominate the moon.

A last quarter moon can be used as a guidepost to Earth's direction of motion in orbit around the sun. In other words, when you look at a last quarter moon high in the predawn sky, you're gazing out approximately along the path of Earth's orbit, in a forward direction. The moon is moving in orbit around the sun with the Earth. But, if we could somehow anchor the moon in space... tie it down, keep it still... Earth's orbital speed of 18 miles per second would carry us across the space between us and the moon in only a few hours.

Read more at EarthSky.org »
23 päevaJärgmise täiskuuni on jäänud
8 päeva Järgmise noorkuuni on jäänud
53,9%Kuu on nähtav

23. aprilli ekstreemumid 2008-2018

AastaMaks.KeskmineMin.
20189,8°C2,64°C-5,0°C
20177,6°C3,24°C-1,0°C
20168,0°C3,42°C-1,8°C
201511,5°C6,60°C2,5°C
201414,1°C7,66°C0,3°C
201314,6°C6,60°C-1,0°C
201214,6°C7,25°C2,4°C
201118,0°C8,19°C-1,7°C
20107,4°C2,54°C-2,0°C
200913,5°C5,27°C-4,3°C
200812,9°C5,36°C-4,0°C

Ilmateenistuse ennustus

-4...3°C
6...13°C
1...6°C
6...12°C
2...7°C
6...10°C
0...6°C
6...13°C

Rõhkkonnad Eestis

PäevMadal- rõhkkondKõrg- rõhkkond
23.04.Onni
22.04.Lis
21.04.Lis
20.04.Norbert
19.04.Norbert

Ennustuse täpsuse jooksva kuu parimad

AllikasPäevi%
Yr.no191,41%
Yr.no290,54%
Yr.no388,80%
Ilmateenistus 187,50%
Forecast.io187,50%

Päevarekordid

Täna Tallinnas kõige soojem on olnud 22,0°C (1995) ja külmem -5,7°C (1852).

Täna Tartus kõige soojem on olnud 24,5°C (1952) ja külmem -8,7°C (1873).

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Ilmateenistuse hoiatused

23.04. õhtul tugevneb kagutuul puhanguti 15 m/s.
23.04 öö hakul tugevneb kagutuul puhanguti 15 m/s.
23.04 öö hakul tugevneb kagutuul puhanguti 15 m/s.
23.04 öö hakul tugevneb kagutuul puhanguti 15 m/s.
23.04 öö hakul tugevneb kagutuul puhanguti 15 m/s.

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