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It was later cataloged as M51 in Messier's list of astronomical objects. [15] The advent of radio astronomy and subsequent radio images of M51 unequivocally demonstrated that the Whirlpool and its companion galaxy are indeed interacting. Sometimes the designation M51 is used to refer to the pair of galaxies, in which case the individual ...
The Messier catalogue is one of the most famous lists of astronomical objects, and many objects on the list are still referenced by their Messier numbers. [1] The catalogue includes most of the astronomical deep-sky objects that can be easily observed from Earth's Northern Hemisphere; many Messier objects are popular targets for amateur ...
The M51 Group is a group of galaxies located in Canes Venatici.The group is named after the brightest galaxy in the group, the Whirlpool Galaxy (M51A). Other notable members include the companion galaxy to the Whirlpool Galaxy and the Sunflower Galaxy (M63).
Space photography produces stunning, otherworldly displays of intricate shapes and fiery colors, but it has also become essential in astronomers' attempts to understand the universe. Since ...
Priscilla Fairfield Bok (1896–1975), American astronomer of galactic astronomy; Tabetha S. Boyajian (born c. 1980), American stellar and exoplanetary astronomer; Sophia Brahe (c. 1559 to 1643), Danish noble woman; Ingeborg Brun (1872–1929), Danish amateur astronomer
NGC 5195 (also known as Messier 51b or M51b) is a dwarf galaxy that is interacting with the Whirlpool Galaxy (also known as M51a or NGC 5194). Both galaxies are located approximately 25 million light-years away in the constellation Canes Venatici .
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