Explanation: The Whirlpool Galaxy is a classic spiral galaxy. At only 23 million light years distant and fully 65 thousand light years across, M51, also known as NGC 5194, is one of the brightest and most picturesque galaxies on the sky. The smaller galaxy appearing here below and to the left is well behind M51, as can be inferred by the dust in a foreground spiral arm blocking light from this smaller galaxy. The Whirlpool, pictured above, is visible with binoculars in the constellation of Canes Venaciti. M51 is a spiral galaxy of type Sc and is the dominant member of a whole group of galaxies. Astronomers speculate that M51's spiral structure is primarily due to its gravitational interaction with this smaller galaxy.

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
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NASA Official: Jay Norris. Specific rights apply.
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& Michigan Tech. U.

Publikacii s klyuchevymi slovami: galaktika Vodovorot - M 51 - spiral galaxy Publikacii so slovami: galaktika Vodovorot - M 51 - spiral galaxy
Sm. takzhe: NGC 247 s druz'yami Licom k NGC 6946 M83: zvezdnye potoki i tysyacha rubinov NGC 1546 ot teleskopa im.Habbla Mess'e 66 krupnym planom NGC 4565: galaktika, vidimaya s rebra M100: galaktika s regulyarnym spiral'nym uzorom Vse publikacii na tu zhe temu >>