Astronomy:NGC 7329

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NGC 7329
NGC 7329 imaged by the Hubble Space Telescope
Observation data (J2000 epoch)
ConstellationTucana
Right ascension 22h 40m 24.2383s[1]
Declination−66° 28′ 44.142″[1]
Distance145.67 ± 3.35 Mly (44.662 ± 1.028 Mpc)[2]
Group or clusterNGC 7329 group (LGG 462)[3]
Apparent magnitude (V)12.1[1]
Apparent magnitude (B)12.51
Characteristics
TypeSB(r)b[1]
Size~233,000 ly (71.45 kpc) (estimated)[1]
Apparent size (V)3.9′ × 2.6′[1]
Other designations
ESO 109-12, AM 2236-664, IRAS F22369-6644, PGC 69453[1]

NGC 7329 is a large barred spiral galaxy located in the constellation Tucana. Its velocity with respect to the cosmic microwave background is 3,148±8 km/s, which corresponds to a Hubble distance of 151.4 ± 10.6 Mly (46.43 ± 3.25 Mpc).[1] Additionally, 29 non-redshift measurements give a closer mean distance of 145.67 ± 3.35 Mly (44.662 ± 1.028 Mpc).[2] It was discovered by British astronomer John Herschel on 20 July 1835.[4]

The luminosity class of NGC 7329 is II and it has a broad HI line.

Supernovae

Two supernovae have been observed in NGC 7329:

  • SN 2006bh (Type Ia, mag. 14.8) was discovered by South African amateur astronomer Berto Monard (it), in Pretoria, on 2 April 2006.[5][6]
  • SN 2009iu (Type Ib, mag. 15.5) was discovered on 1 September 2009 by the CHASE (Chilean Automatic Supernova Search) project, a project searching for supernovae visible from astronomical observatories in the southern hemisphere.[7][8]

NGC 7329 group

NGC 7329 is a member of a group of galaxies that bears its name. The NGC 7329 group (also known as LGG 462) has at least 11 members, including NGC 7358 (fr), NGC 7408, NGC 7417 (fr), IC 5222 (fr), IC 5227 (fr), IC 5244 (fr), IC 5250 (fr), IC 5266 (fr), IC 5272 (fr) and ESO 109-32 (d).[3][9]

See also

References

Coordinates: Sky map 22h 40m 24.2383s, −66° 28′ 44.142″ Template:NGC objects: 7001-7840