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NGC 525

Coordinates:Sky map01h 24m 52.9s, +09° 42′ 12″
From Wikipedia, the free encyclopedia
Galaxy in the constellation Pisces
NGC 525
NGC 525
NGC 525 as seen onSDSS
Observation data (J2000[1]epoch)
ConstellationPisces[2]
Right ascension01h 24m 52.9s[3]
Declination+09° 42′ 12″[3]
Redshift0.007158 ± 0.000167[1]
Heliocentric radial velocity(2138 ± 50) km/s[1]
Distance95.6Mly[4]
Apparent magnitude (V)13.3[2]
Apparent magnitude (B)14.3[2]
Characteristics
TypeS0[2]
Apparent size (V)1.5' × 0.7'[2]
Other designations
PGC 5232,UGC 972,MGC +01-04-054,2MASS J01245290+09421164[1][5]

NGC 525, also occasionally referred to asPGC 5232 orUGC 972, is alenticular galaxy located approximately 95.6 million light-years from theSolar System[4] in the constellationPisces.[2] It was discovered on 25 September 1862 byastronomerHeinrich d'Arrest.[5]

Observation history

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D'Arrest discovered NGC 525 using his 11-inchrefractor telescope atCopenhagen. He located the galaxy's position with a total of two observations. As he also noted the mag 11-12 star just 2' northwest, his position is fairly accurate.[6] The galaxy was later catalogued byJohn Louis Emil Dreyer in theNew General Catalogue, where it was described as "very faint, very small, 11th or 12th magnitude star 5 seconds of time to west".[5]

Description

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The galaxy appears very dim in the sky as it only has anapparent visual magnitude of 13.3 and thus can only be observed with telescopes. It can be classified as type S0 using theHubble Sequence.[2] The object's distance of roughly 95.6 million light-years from the Solar System can be estimated using itsredshift andHubble's law.[4]

See also

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References

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  1. ^abcd"NGC 525".SIMBAD.Centre de données astronomiques de Strasbourg. Retrieved2017-12-09.
  2. ^abcdefg"Revised NGC Data for NGC 525".spider.seds.org. Retrieved2017-10-05.
  3. ^ab"Your NED Search Results".ned.ipac.caltech.edu. Retrieved2017-10-05.
  4. ^abcAn object's distance from Earth can be determined usingHubble'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 andv=Ho
  5. ^abc"New General Catalog Objects: NGC 500 - 549".cseligman.com. Retrieved2017-10-16.
  6. ^"astronomy-mall.com/Adventures.In.Deep.Space/NGC%201-7840%20complete.htm".

External links

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Wikimedia Commons has media related toNGC 525.


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