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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.
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 ]
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 ...
Excellent viewing conditions are anticipated for the peak of the Perseids, a meteor shower that experts annually rank as the best. Onlookers may count up to 100 shooting stars per hour on the ...
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 ...
Messier 83 or M83, also known as the Southern Pinwheel Galaxy and NGC 5236, is a barred spiral galaxy [7] approximately 15 million light-years away in the constellation borders of Hydra and Centaurus.
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 ...