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From Wikipedia, the free encyclopedia

UGC 1840
Hubble Space Telescope image of UGC 1840
Observation data
ConstellationAndromeda
Right ascension35.79 degrees
Declination41.36 degrees
Redshift0.018096
Heliocentric radial velocity5,420 km/s
Distance258.5 Mly (79.1 Mpc)
Characteristics
TypePECULR
Notable featuresCollisional ring galaxy
Other designations
Arp 145, IRAS 02200+4108, PGC 9062, PGC 9060, MCG+07-06-002, UGC 1840, Z 538-56, HFLLZOA F264, V Zw 229, 2MASX J02231142+4122047

UGC 1840 known as Arp 145, are a pair of interacting galaxies located 250 million light-years away from the Solar System in the Andromeda constellation.[1] Made up of two galaxies, UGC 1840 NED01 (PGC 9060)[2] and UGC 1840 NED02 (PGC 9062),[3] the two galaxies had recently collided with each other[4] in which the elliptical galaxy has penetrated through the spiral galaxy's nucleus leaving a hole in its middle, thus forming a ring galaxy.[5][6] With a diameter of 1.3 arc minutes, close to 100,000 thousand light-years, they are roughly the same size as the Milky Way.[7][unreliable source?]

Both galaxies are included in Atlas of Peculiar Galaxies which was created by Halton Arp.[8][unreliable source?] They fall under the category of objects that have emanating material and both classified as galaxies that have ring systems.

References

  1. ^ "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2024-04-22.
  2. ^ "NED Search Results for UGC 1840 NED02". ned.ipac.caltech.edu. Retrieved 2024-04-22.
  3. ^ "NED Search Results for UGC 1840 NED01". ned.ipac.caltech.edu. Retrieved 2024-04-22.
  4. ^ "Collisional Ring Galaxies - P.N. Appleton & C. Struck-Marcell". ned.ipac.caltech.edu. Retrieved 2024-04-22.
  5. ^ "Mantrap Skies Astronomical Image Catalog: ARP145". images.mantrapskies.com. Retrieved 2024-04-22.
  6. ^ Chatterjee, T. K. (1984-11-01). "The Formation of Ring Galaxies". Astrophysics and Space Science. 106 (2): 309–339. Bibcode:1984Ap&SS.106..309C. doi:10.1007/BF00650358. ISSN 0004-640X.
  7. ^ http://iovene.com, Salvatore Iovene-. "UGC1840 (Arp 145) Irregular galaxy". AstroBin. Retrieved 2024-04-22. {{cite web}}: External link in |last= (help)
  8. ^ "David's Astronomy - ARP Peculiar Galaxy Objects". www.astro-richweb.net. Retrieved 2024-04-22.
This page was last edited on 16 May 2024, at 00:35
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