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NGC 383

Coordinates:Sky map01h 07m 24.968s, +32° 24′ 45.103″
From Wikipedia, the free encyclopedia
Radio galaxy in the constellation Pisces

NGC 383
Hubble Legacy Archive image of NGC 383
Observation data (J2000epoch)
ConstellationPisces
Right ascension01h 07m 24.968s[1]
Declination+32° 24′ 45.103″[1]
Redshift0.017005[1]
Distance209,000,000ly
64 Mpc[2]
Apparent magnitude (V)13.4[1]
Characteristics
TypeS0[1]
Size~149,700 ly (45.91 kpc) (estimated)[1]
Apparent size (V)2.34′ × 1.95′[1]
Other designations
3C 31,4C 32.05,QSO B0104+321,UGC 689,MCG +05-03-053,PGC 3982,CGCG 501-087,VV 193a[1]

NGC 383 is a doubleradio galaxy[3] with aquasar-like appearance located in theconstellationPisces. It was discovered by German-British astronomerWilliam Herschel on 12 September 1784.[4] It is listed asArp 331 inHalton Arp'sAtlas of Peculiar Galaxies.[5]

Recent discoveries by the National Radio Astronomy Observatory in 2006 reveal that NGC 383 is being bisected by high energyrelativistic jets traveling at relatively high fractions of the speed of light. Therelativistic electrons in the jets are detected assynchrotron radiation in the x-ray and radio wavelengths. The focus of this intense energy is the galactic center of NGC 383. Therelativistic electron jets detected assynchrotron radiation extend for several thousand parsecs and then appear to dissipate at the ends in the form of streamers or filaments.

There are four other nearby galaxiesNGC 379,NGC 380,NGC 385, andNGC 384 which are suspected of being closely associated with NGC 383, as well as several other galaxies at relatively close distance.

Twosupernovae have been observed in NGC 383:

  • SN 2015ar (type Ia, mag. 18.8) was discovered by E. Conseil and G. Arlic on 11 November 2015.[6][7]
  • SN 2017hle (type Ia, mag. 18) was discovered byXingming Observatory Sky Survey (XOSS) on 18 October 2017.[8]
Two jets coming from 3C 31.

See also

[edit]

References

[edit]
  1. ^abcdefgh"Results for object NGC 0383".NASA/IPAC Extragalactic Database.NASA andCaltech. Retrieved26 October 2006.
  2. ^"Distance Results for NGC 383".NASA/IPAC Extragalactic Database. Retrieved31 March 2010.
  3. ^"NGC 383".SIMBAD.Centre de données astronomiques de Strasbourg.
  4. ^Seligman, Courtney."New General Catalogue Objects: NGC 383".Celestial Atlas. Retrieved7 January 2025.
  5. ^Arp, Halton (1966). "Atlas of Peculiar Galaxies".The Astrophysical Journal Supplement Series.14: 1.Bibcode:1966ApJS...14....1A.doi:10.1086/190147.
  6. ^"SN 2015ar".Transient Name Server.IAU. Retrieved7 January 2025.
  7. ^Conseil, E.; Arlic, G. (11 November 2015)."CBAT "Transient Object Followup Reports" for PSN J01072038+3223598".Central Bureau for Astronomical Telegrams.IAU. Retrieved7 January 2025.
  8. ^"SN 2017hle".Transient Name Server.IAU. Retrieved7 January 2025.

External links

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