NGC 4030

NGC 4030
Infrared view of NGC 4030 from the Very Large Telescope at Paranal Observatory in Chile[1]
Observation data (J2000 epoch)
ConstellationVirgo
Right ascension12h 00m 23.643s[2]
Declination–01° 05′ 59.87″[2]
Heliocentric radial velocity1,465[3] km/s
Distance63.6 ± 4.9 Mly (19.5 ± 1.5 Mpc)[3]
Apparent magnitude (V)10.6[4]
Characteristics
TypeSA(s)bc[3]
Apparent size (V)3′.8 × 2′.9[4]
Other designations
PGC 37845, UGC 6993[3]
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NGC 4030 is a grand design spiral galaxy[5] located about 64[3] million light years away in the constellation Virgo. It is a member of the NGC 4030 Group of galaxies, which is a member of the Virgo II Groups, a series of galaxies and galaxy clusters strung out from the southern edge of the Virgo Supercluster.[6] With an apparent visual magnitude of 10.6, it is visible with a small telescope as a 3 arc minute wide feature about 4.75° to the southeast of the star Beta Virginis.[4] It is inclined by an angle of 47.1°[3] to the line of sight from the Earth and is receding at a velocity of 1,465 km/s.[3]

The morphological classification of NGC 4030 in the De Vaucouleurs system is SA(s)bc,[3] which indicates a spiral structure (SA) with no bar (s) and moderate to loosely wound arms (bc).[7] The inner part of the galaxy shows a complex structure with multiple spiral arms, which becomes a symmetric, double arm pattern beyond 49″ from the core.[5] The central bulge is relatively young with an estimated age of two billion years,[8] while the nucleus is inactive.[9]

In 2007, a supernova explosion was discovered in the galaxy from images taken on February 19 from the 1 m Swope telescope at Las Campanas Observatory in Chile. Designated SN 2007aa, it was a type IIP[10] supernova positioned 68″.5 north and 60″.8 east of the galactic nucleus.[11] The progenitor was a red giant star with 8.5–16.5 times the mass of the Sun.[10]

  1. ^ Cite error: The named reference ESO20130719 was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference ApJ131_1163 was invoked but never defined (see the help page).
  3. ^ a b c d e f g h Cite error: The named reference MNRAS428_3_1927 was invoked but never defined (see the help page).
  4. ^ a b c Cite error: The named reference OMeara2007 was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference AAA542_A39 was invoked but never defined (see the help page).
  6. ^ "The Virgo III Groups". Atlas of the Universe. Retrieved 2010-11-27.
  7. ^ Cite error: The named reference Buta2007 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference AN329_980 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference ApJ768_2_107 was invoked but never defined (see the help page).
  10. ^ a b Cite error: The named reference ApJ713_2_1363 was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference CBET850 was invoked but never defined (see the help page).