NGC 6782
Template:Short description Template:Infobox Galaxy
NGC 6782 is a barred spiral galaxy located in the southern constellation of Pavo, at a distance of approximately Script error: No such module "convert". from the Milky Way.[1] It was discovered on July 12, 1834 by English astronomer John Herschel. John L. E. Dreyer described it as, "considerably faint, considerably small, round, a little brighter middle, 9th magnitude star to south".[2] The morphological classification of NGC 6782 is (R1R′2)SB(r)a, indicating a barred spiral galaxy with a multiple ring system and tightly-wound spiral arms.[3] It is seen nearly face-on,[4] being inclined by an angle of Script error: No such module "val". to the line of sight from the Earth.[3]
At the galactic core is an almost circular nuclear ring at the inner Lindblad resonance. This is attached to the primary bar, which extends out to a somewhat pointy, diamond-shaped inner ring. It is actually a double-barred galaxy, with an interior bar inside the nuclear ring. A pair of faint spiral arms extend out from the inner ring to the outer parts of the galaxy, where it joints a double outer ring system.[3] Both inner rings of the galaxy are undergoing star formation, producing hot OB stars, with little star formation occurring in the remainder.[4]
Gallery
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Structure of NGC 6782
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NGC 6782 with legacy survey
See also
- Messier 94 - a similar spiral galaxy
References
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