NGC 4589

NGC 4589
NGC 4589 imaged by the Hubble Space Telescope
Observation data (J2000 epoch)
ConstellationDraco
Right ascension12h 37m 24.9875s[1]
Declination+74° 11′ 30.903″[1]
Redshift0.006617[2]
Heliocentric radial velocity2,002 km/s[3]
Galactocentric velocity2,154 km/s[3]
Distance73.03 ± 0.46 Mly (22.39 ± 0.14 Mpc)[3]
Apparent magnitude (V)10.73±0.15[4]
Apparent magnitude (B)11.69±0.15[4]
Absolute magnitude (V)−21.41±0.23[4]
Characteristics
TypeE2[4]
Apparent size (V)3.47′ × 2.75′[5]
Other designations
IRAS F12353+7428, NGC 4589, UGC 7797, LEDA 42139[6]

NGC 4589 is an elliptical galaxy located in the Draco constellation.[7][8][9] It was discovered by German-British astronomer William Herschel on November 22, 1797. This galaxy lies at a distance of 73.0 million light-years (22.39 Mpc) from the Milky Way, and is receding with a heliocentric radial velocity of 2,002 km/s.[3] It is known by its designations PGC 42139 or UGC 7797.[6]

The morphological classification of NGC 4589 is E2 in the De Vaucouleurs system, Indicating this is an elliptical galaxy with a ratio of 5:4 between the major and minor axes. It is a bright source of X-ray emission and is a LINER-type galaxy. There is a dusty disk that is aligned with the minor axis, which is likely the remnant of a merger with a gas-rich galaxy. NGC 4589 has a large population of globular clusters, estimated at 640±50. A small population of young star clusters with an age of less than a billion years are located in the central region.[4]

The calcium-rich type Ib supernova SN 2005cz was discovered on July 28, 2005.[10][11] The progenitor star may have formed near the young stellar clusters at the core of NGC 4589.[4]

  1. ^ a b Cite error: The named reference Myers_et_al_2003 was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference Kochanek_et_al_2001 was invoked but never defined (see the help page).
  3. ^ a b c d Cite error: The named reference Tully2013 was invoked but never defined (see the help page).
  4. ^ a b c d e f Cite error: The named reference Lee_et_al_2019 was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference Paturel_et_al_2003 was invoked but never defined (see the help page).
  6. ^ a b Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference hubblesite2015 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference Lee_et_al_2018 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference Kawabata2010 was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference Leonard_2005 was invoked but never defined (see the help page).
  11. ^ "SN 2005cz". Transient Name Server. IAU. Retrieved 14 August 2024.