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Messier 69 or M69, also known NGC 6637, and NGC 6634, [9] [10] is a globular cluster in the southern constellation of Sagittarius. [a] It can be found 2.5° to the northeast of the star Epsilon Sagittarii and is dimly visible in 50 mm aperture binoculars. The cluster was discovered by Charles Messier on August 31, 1780, the same night he ...
Messier 70 or M70, also known as NGC 6681, is a globular cluster of stars to be found in the south of Sagittarius. [a] It was discovered by Charles Messier in 1780. [b] [6] The famous comet Hale–Bopp was discovered near this cluster in 1995. [10] [c] It is about 29,400 [4] light years away from Earth and around 6,500 light-years [11] from the ...
The beginning of the Astronomical League dates back to 1939 when members of eleven amateur astronomical societies met at the American Museum of Natural History in New York City. Similar meetings followed in Pittsburgh, 1940, Washington D.C., 1941, and Detroit, 1946.
The conclusion of the dog days of summer will kick off a flurry of astronomical events in the night sky, including two highly-anticipated events unfolding at the same time. The dog days of summer ...
From planetary alignments to a "Super Harvest Moon Eclipse," here are the top astronomy events to mark on your 2024 calendar: Less than a week after the spring equinox, which takes place on March ...
It is around 16 × 10 ^ 3 ly (4.9 kpc) above/below the galactic plane and 33 × 10 ^ 3 ly (10 kpc) from the Galactic Center. [14] It is about 26,700 light-years away from the Solar System .The half-light radius, or radius containing the upper half of its light emission, is 1.09 arcminutes ( ′ ), while the tidal radius, the broadest standard ...
Charles Messier. The first edition of 1774 covered 45 objects (M1 to M45).The total list published by Messier in 1781 contained 103 objects, but the list was expanded through successive additions by other astronomers, motivated by notes in Messier's and Méchain's texts indicating that at least one of them knew of the additional objects.
Messier 18 or M18, also designated NGC 6613 and sometimes known as the Black Swan Cluster, is an open cluster of stars in the constellation Sagittarius. It was discovered by Charles Messier in 1764 and included in his list of comet -like objects. [ 8 ]