The messier galaxy is galaxy that is seventeen million light years away. This galaxy can be seen in the constellation Hydra. This galaxy is a spiral pinwheel galaxy and is also one of the brightest galaxies in the sky. The galaxy messier 83 was founded in February 23 in 1752 by Nicolas Louis de Lacaille. Lacaille found the Messier 83 galaxy off of the Cape of Good Hope. In March of 1781 Charles Messier added this galaxy to his catalog of nebulas objects, known as the messier catalog. Later on June 6, 2006 the Galaxy Evaluation Explorer, from NASA, found that there were a large number of new stars on the outer rim of the galaxy, which was believed to be lacking in the material needed to make a star. The Galaxy Evaluation Explorer also found
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One such characteristic is that this galaxy is believed to have a dual nucleus in the core. A dual nucleus is a rare trait shown in galaxies. In fact, a dual nucleus is starting to appear in the nearby Andromeda galaxy. What a dual nucleus is; is a core that does not have two black holes in its center, but one giant black hole that has a ring of stars orbiting it, giving off the appearance of two black holes. The double nucleus of M83 may be explained by a merger with a smaller galaxy that occurred in the distant past. The second nucleus may be the remnant core of the other galaxy that was absorbed by the larger M83. The Messier 83 galaxy is also home to six supernovas, which ties for second as the most known supernova in a single galaxy. The only galaxy that top Messier 83 are the Messier 61, which ties with Messier 83, and NGC 6946 which is on the top with nine supernova. The six supernovas are 1923A, 1945B, 1950B, 1957D, 1968L, and 1983N. 1923A was observed by C.O. Lampland at Lowell Observatory at mag 14. 1945B appeared on July 13, 1945 and reached mag 14.2. This supernova was only detected in 1990 by W. Liller on photographic plates taken at Harvard's station at Bloemfontein, and could be traced from July 13 to August 7. 1950B was observed by G. Haro and reached mag 14.5 in its maximum. 1957D was discovered by H.S. Gates on December 13, 1957 and reached only mag 15.0, it was about 3' NNE of the …show more content…
3-inch telescopes show a larger patch of nebulosity with a bright center, while 6-inch telescopes begin to hint at the bar structure and the dark patches around the galaxy’s central region. 10-inch telescopes reveal the galaxy’s well defined spiral structure, dark dust lanes and the central bar. With a declination of 30 degrees south, M83 is best seen from Southern Hemisphere or equatorial regions during the months of April, May and June. For mid-latitude northern hemisphere observers, the galaxy can be a difficult object; it's the southernmost galaxy in Messier's list and therefore never climbs particularly high above the southern horizon. Despite being a relatively bright galaxy M83 can be tricky to locate as it's positioned in a part of the sky devoid of bright stars. It can be found by locating stars γ Hya. Imagine a line connecting these two stars and then move along the line until just short of the halfway mark. Located about 6 degrees south of this point is M83. The central bar of the Southern Pinwheel Galaxy extends for more than a third of the galaxy’s length. It may be responsible for most of the star forming activity in the core of M83 as it funnels material to the central
One such characteristic is that this galaxy is believed to have a dual nucleus in the core. A dual nucleus is a rare trait shown in galaxies. In fact, a dual nucleus is starting to appear in the nearby Andromeda galaxy. What a dual nucleus is; is a core that does not have two black holes in its center, but one giant black hole that has a ring of stars orbiting it, giving off the appearance of two black holes. The double nucleus of M83 may be explained by a merger with a smaller galaxy that occurred in the distant past. The second nucleus may be the remnant core of the other galaxy that was absorbed by the larger M83. The Messier 83 galaxy is also home to six supernovas, which ties for second as the most known supernova in a single galaxy. The only galaxy that top Messier 83 are the Messier 61, which ties with Messier 83, and NGC 6946 which is on the top with nine supernova. The six supernovas are 1923A, 1945B, 1950B, 1957D, 1968L, and 1983N. 1923A was observed by C.O. Lampland at Lowell Observatory at mag 14. 1945B appeared on July 13, 1945 and reached mag 14.2. This supernova was only detected in 1990 by W. Liller on photographic plates taken at Harvard's station at Bloemfontein, and could be traced from July 13 to August 7. 1950B was observed by G. Haro and reached mag 14.5 in its maximum. 1957D was discovered by H.S. Gates on December 13, 1957 and reached only mag 15.0, it was about 3' NNE of the …show more content…
3-inch telescopes show a larger patch of nebulosity with a bright center, while 6-inch telescopes begin to hint at the bar structure and the dark patches around the galaxy’s central region. 10-inch telescopes reveal the galaxy’s well defined spiral structure, dark dust lanes and the central bar. With a declination of 30 degrees south, M83 is best seen from Southern Hemisphere or equatorial regions during the months of April, May and June. For mid-latitude northern hemisphere observers, the galaxy can be a difficult object; it's the southernmost galaxy in Messier's list and therefore never climbs particularly high above the southern horizon. Despite being a relatively bright galaxy M83 can be tricky to locate as it's positioned in a part of the sky devoid of bright stars. It can be found by locating stars γ Hya. Imagine a line connecting these two stars and then move along the line until just short of the halfway mark. Located about 6 degrees south of this point is M83. The central bar of the Southern Pinwheel Galaxy extends for more than a third of the galaxy’s length. It may be responsible for most of the star forming activity in the core of M83 as it funnels material to the central