Search results
Results from the WOW.Com Content Network
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.
The Owl Nebula (also known as Messier 97, M97 or NGC 3587) is a planetary nebula approximately 2,030 light years away in the constellation Ursa Major. [2] Estimated to be about 8,000 years old, [ 6 ] it is approximately circular in cross-section with a faint internal structure.
Messier 10 or M10 (also designated NGC 6254) is a globular cluster of stars in the equatorial constellation of Ophiuchus. The object was discovered by the French astronomer Charles Messier on May 29, 1764, who cataloged it as number 10 in his catalogue and described it as a " nebula without stars".
The Sombrero Galaxy is 11.5° west of Spica [10] and 5.5° north-east of Eta Corvi. [38] Although it is visible with 7×35 binoculars or a 4-inch (100 mm) amateur telescope, [38] an 8-inch (200 mm) telescope is needed to distinguish the bulge from the disk, [10] and a 10- or 12-inch (250 or 300 mm) telescope to see the dark dust lane. [10]
The Omega Nebula is between 5,000 and 6,000 light-years from Earth and it spans some 15 light-years in diameter. The cloud of interstellar matter of which this nebula is a part is roughly 40 light-years in diameter and has a mass of 30,000 solar masses. [3]
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 noted it in 1764 and—a studier of comets—cast it as one of his nebulae. William Herschel was the first to resolve individual stars in the cluster in 1791, counting roughly 200. [9] Messier 5 is receding from the Solar System at a speed over 50 km/s. [10]
Messier 29 or M29, also known as NGC 6913 or the Cooling Tower Cluster, is a quite small, bright open cluster of stars just south of the central bright star Gamma Cygni of a northerly zone of the sky, Cygnus. It was discovered by Charles Messier in 1764, and can be seen from Earth by using binoculars.