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NGC 1511

Coordinates: Sky map 03h 59m 36.9554s, −67° 38′ 03.094″
From Wikipedia, the free encyclopedia
NGC 1511
The barred spiral galaxy NGC 1511.
Observation data (J2000 epoch)
ConstellationHydrus
Right ascension03h 59m 36.9554s[1]
Declination−67° 38′ 03.094″[1]
Redshift0.004474[1]
Heliocentric radial velocity1341 ± 5 km/s[1]
Distance64.4 ± 4.5 Mly (19.76 ± 1.39 Mpc)[1]
Group or clusterNGC 1511 Group (LGG 107)
Apparent magnitude (V)11.3[1]
Characteristics
TypeSAa pec: HII[1]
Size~83,000 ly (25.45 kpc) (estimated)[1]
Apparent size (V)3.5' x 1.3'[1]
Other designations
IRAS 03594-6746, 2MASX J03593698-6738033, MCG +00-12-072, PGC 14236, ESO 055- G 004[1]

NGC 1511 is a barred spiral galaxy in the constellation of Hydrus. Its velocity with respect to the cosmic microwave background is 1341 ± 5 km/s, which corresponds to a Hubble distance of 19.76 ± 1.39 Mpc (∼64 million light-years).[1] It was discovered by British astronomer John Herschel on 2 November 1834.

Morphology

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Eskridge, Frogel, and Pogge published a paper in 2002 describing the morphology of 205 closely spaced spiral or lenticular galaxies. The observations were made in the H-band of the infrared and in the B-band (blue). Eskridge and colleagues described NGC 1511 as:

Nearly edge-on. SW side of bulge is hidden by a prominent dust band, indicating that the bulge is small. Inner SE spiral arm has several very bright star-forming knots. Arms do not appear very extended (may be due to foreshortening), but there is an extended, featureless LSB [Low Surface Brightness] disk beyond the arms.[2]

Supernova

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One supernova has been observed in NGC 1511: SN 1935C (type unknown, mag. 12.5).[3] The supernova was discovered by Emily Hughes Boyce on 16 August 1935, and was initially thought to be either a supernova, or a nova associated with the Large Magellanic Cloud. It was classified as a nova, and known as either HV 11970 or Nova Hydri 1935. In September 1988, Sidney Van Den Bergh and Martha L. Hazen concluded definitively that the object was a supernova in NGC 1511, and the star was given the designation SN 1935C.[4][5]

NGC 1511 Group

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According to A.M. Garcia, the galaxy NGC 1511 is the central member of the NGC 1511 group (also known as LGG 107) that includes NGC 1473 and NGC 1511A .[6]

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See also

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References

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  1. ^ a b c d e f g h i j k "Results for object NGC 1511". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 28 July 2024.
  2. ^ Eskridge, Paul B.; Frogel, Jay A.; Pogge, Richard W.; Quillen, Alice C.; Berlind, Andreas A.; Davies, Roger L.; Depoy, D. L.; Gilbert, Karoline M.; Houdashelt, Mark L.; Kuchinski, Leslie E.; Ramirez, Solange V.; Sellgren, K.; Stutz, Amelia; Terndrup, Donald M.; Tiede, Glenn P. (2002). "Near-Infrared and Optical Morphology of Spiral Galaxies". The Astrophysical Journal Supplement Series. 143: 73–111. arXiv:astro-ph/0206320. doi:10.1086/342340.
  3. ^ "SN 1935C". Transient Name Server. IAU. Retrieved 13 December 2024.
  4. ^ van den Bergh, Sidney; Hazen, Martha L. (1988). "Was Nova Hydri 1935 a Supernova?". Publications of the Astronomical Society of the Pacific. 100: 1542. Bibcode:1988PASP..100.1542V. doi:10.1086/132362.
  5. ^ Van Den Bergh, S.; Hazen, M. L.; Boyce, E. H. (1988). "Supernova 1935C in NGC 1511". International Astronomical Union Circular (4647): 2. Bibcode:1988IAUC.4647....2V.
  6. ^ Garcia, A. M. (1993). "General study of group membership. II. Determination of nearby groups". Astronomy and Astrophysics Supplement Series. 100: 47. Bibcode:1993A&AS..100...47G.
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