NGC 527

NGC 527, also occasionally referred to as PGC 5128 or PGC 5141, is a lenticular galaxy located approximately 259 million light-years from the Solar System[4] in the constellation Sculptor.[2] It was discovered on 1 September 1834 by astronomer John Herschel. [5]

NGC 527
NGC 527 as seen on DSS
Observation data (J2000[1] epoch)
ConstellationSculptor[2]
Right ascension01h 23m 58.0s[3]
Declination−35° 06′ 55″[3]
Redshift0.019243 ± 0.000057[1]
Helio radial velocity(5713 ± 17) km/s[1]
Distance259 Mly[4]
Apparent magnitude (V)13.2[2]
Apparent magnitude (B)14.1[2]
Characteristics
TypeSB0-a[2]
Apparent size (V)1.6' × 0.3'[2]
Other designations
PGC 5128, PGC 5141, GC 310, MGC -06-04-021, 2MASS J01235812-3506545, h 2409[1][5]

Observation history

Herschel discovered the object along with NGC 526. [6] The object was later catalogued by John Louis Emil Dreyer in the New General Catalogue, where the galaxy was described as "faint, small, a little extended, brighter middle, the following (eastern) of 2" with the other one being NGC 526.[5]

Description

The galaxy has an apparent visual magnitude of 13.2 and can be classified as type SB0-a using the Hubble Sequence.[2] The object's distance of roughly 260 million light-years from the Solar System can be estimated using its redshift and Hubble's law.[4]

Companion Galaxy PGC 5142

NGC 527 has a much dimmer magnitude 14 companion galaxy (PGC 5142). Although this galaxy is not an NGC object, it is sometimes referred to as NGC 527B. The galaxy has an apparent size of 1.6' × 0.3' and a recessional velocity of approximately 5880 km/s.

See also

References
  1. "NGC 527". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2017-12-09.
  2. "Revised NGC Data for NGC 527". 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".


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