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NGC 519, also occasionally referred to as PGC 5182 is an elliptical galaxy located approximately 242 million light-years from the Solar System[4] in the constellation Cetus.[2] It was discovered on 20 November 1886 by astronomer Lewis Swift.[5]

NGC 519
NGC 519 as seen on SDSS
Observation data (J2000[1] epoch)
ConstellationCetus[2]
Right ascension01h 24m 28.6s[3]
Declination−01° 38′ 29″[3]
Redshift0.017756 ± 0.000260[1]
Helio radial velocity(5276 ± 78) km/s[1]
Distance242 Mly[4]
Apparent magnitude (V)14.4[2]
Apparent magnitude (B)15.4[2]
Characteristics
TypeE[2]
Apparent size (V)0.5' × 0.3'[2]
Other designations
PGC 5182, MGC +00-04-116, 2MASS J01242863-0138284[1][5]

Observation history


Swift discovered the object along with NGC 530, 538 and 557 using a 16-inch refractor telescope at the Warner Observatory.[6] It was later catalogued by John Louis Emil Dreyer in the New General Catalogue, where the galaxy was described as "most extremely faint, very small, round, very difficult".[5]


Description


The galaxy appears very dim in the sky as it only has an apparent visual magnitude of 14.4. It can be classified as type E using the Hubble Sequence.[2] The object's distance of roughly 240 million light-years from the Solar System can be estimated using its redshift and Hubble's law.[4]

NGC 519 (SDSS)
NGC 519 (SDSS)

See also



References


  1. "NGC 519". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2017-12-09.
  2. "Revised NGC Data for NGC 519". spider.seds.org. Retrieved 2017-10-05.
  3. "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2017-10-05.
  4. An object's distance from Earth can be determined using Hubble's law: v=Ho is Hubble's constant (70±5 (km/s)/Mpc). The relative uncertainty Δd/d divided by the distance is equal to the sum of the relative uncertainties of the velocity and v=Ho
  5. "New General Catalog Objects: NGC 500 - 549". cseligman.com. Retrieved 2017-10-16.
  6. "astronomy-mall.com/Adventures.In.Deep.Space/NGC%201-7840%20complete.htm".


Wikimedia Commons has media related to NGC 519.


На других языках

[de] NGC 519

NGC 519 ist eine Elliptische Galaxie vom Hubble-Typ E4 im Sternbild Walfisch südlich des Himmelsäquators. Sie ist schätzungsweise 244 Millionen Lichtjahre von der Milchstraße entfernt und hat einen Durchmesser von etwa 35.000 Lichtjahren. Im selben Himmelsareal befinden sich u. a. die Galaxien NGC 530, NGC 538, IC 1693, IC 1696.
- [en] NGC 519

[ru] NGC 519

NGC 519 (другие обозначения — ZWG 385.103, DRCG 7-19, PGC 5182) — эллиптическая галактика в созвездии Кит.


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