umbra

listen to the pronunciation of umbra
Englisch - Englisch
The central region of a sunspot
A shadow
{i} shade, shadow; area of the shadow of an eclipse, dark center of a sunspot; spectral image
the total part of a shadow
The area of total darkness in the shadow caused by an eclipse
umbra = [Latin] shadow The umbra (plural: umbrae) is the centermost, darkest part of a sunspot It can get over 12,000 miles (20,000 km) in diameter, though most umbrae are about half that size The magnetic field in umbrae is strong: from 1500 up to about 3000 G Umbrae are darker than their surroundings because they are cooler Most of the visible solar surface has an average temperature of some 5700 K (10,200 degrees F, 5400 degrees C), but the visible parts of big umbrae have temperatures of only about 3700 K (6600 degrees F, 3400 degrees C) A big umbra can be seen in the high-resolution continuum image V
The fainter part of a sun spot; now more commonly called penumbra
umbra = [Latin] shadow The umbra is the centermost, darkest part of a sunspot It can get over 12,000 miles (20,000 km) in diameter, though most umbrae are at most about half that size The magnetic field in umbrae is strong: from 1500 up to about 3000 G Umbrae are darker than their surroundings because they are cooler Most of the visible solar surface has an average temperature of some 5700 K (10,200 degrees F, 5400 degrees C), but the visible parts of big umbrae have temperatures of only about 3700 K (6600 degrees F, 3400 degrees C) A big umbra can be seen in the high-resolution continuum image
a complete shadow (as of the Moon) within which the source of light (the Sun) is totally hidden from view V W
The central dark portion, or nucleus, of a sun spot
The complete portion of a shadow in an eclipse
The darker core of a shadow, usually cone shaped, and surrounded by a lighter penumbral shadow Also refers to the darker center of sunspots (Back To Top) W
The darkest part of the shadow cast by an astronomical object The umbra of a solar eclipse is the region wherein the eclipse is total The penumbra surrounds the umbra, and is the region which sees a partial eclipse
The heart, or core, of a shadow
1: area of total shadow, especially during solar eclipse 2: cool and dark central region of a sunspot, with a strong vertical magnetic field
a complete shadow (as of the Moon) within which the source of light (the Sun) is totally hidden from view
The region in complete shadow, where no portion of the light source is visible (Compare to penumbra )
cirrhosa, which is highly esteemed as a market fish; called also ombre, and umbrine
Dark central region of a sunspot In an eclipse it is the dark central part of the shadow cast by an illuminated body
The dark central region of a sunspot
the conic-shaped shadow cast behind an object by the sun
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During an eclipse the part of the moon's or earth's shadow in which the solar disk is completely hidden Also refers to the inner region of a sunspot
A total shadow, especially that cast on the earth by the moon during a solar eclipse Those areas of the earth experiencing the umbra will experience a Total Solar Eclipse
a region of complete shadow resulting from total obstruction of light
Any one of several species of sciænoid food fishes of the genus Umbrina, especially the Mediterranean species U
The dark core or cores (umbrae) in a sunspot with penumbra, or a sunspot lacking penumbra
Central region of the shadow cast by an eclipsing body The central region of a sunspot, which is its darkest and coolest part
That part of the shadow cast by the Earth or the Moon within which the Sun is completely hidden
The conical shadow projected from a planet or satellite, on the side opposite to the sun, within which a spectator could see no portion of the sun's disk; used in contradistinction from penumbra
umbrae
plural of umbra
umbra

    Silbentrennung

    um·bra

    Türkische aussprache

    ʌmbrı

    Aussprache

    /ˈəmbrə/ /ˈʌmbrə/

    Etymologie

    [ '&m-br& ] (noun.) 1638. From Latin umbra (“shadow”).

    Wort des Tages

    tremulous
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