NGC 7049

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NGC 7049
NGC 7049aa.jpg
Observation data (J2000 epoch)
Constellation Indus
Right ascension 21h 19m 00.25s [1]
Declination −48° 33 43.24 [1]
Redshift 2285 km/s [1]
Distance 100 Mly [2]
Apparent magnitude  (V)10.7 [1]
Characteristics
Type S0
Size~150,000 ly [2]
Other designations
ESO 236-1, [3] PGC 66549 [1]

NGC 7049 is a lenticular galaxy [1] that spans about 150,000 light-years and lies about 100 million light-years away from Earth [2] in the inconspicuous southern constellation of Indus.

NGC 7049's unusual appearance is largely due to a prominent rope-like dust ring which stands out against the starlight behind it. These dust lanes are usually seen in young galaxies with active star-forming regions. NGC 7049 shows the features of both an elliptical galaxy and a spiral galaxy, and has relatively few globular clusters, indicative of its status as a lenticular type. [4] [ citation needed ] NGC 7049 is the brightest (BCG) of the Indus triplet of galaxies (NGC 7029, NGC 7041, NGC 7049), [5] and its structure might have arisen from several recent galaxy collisions. Typical BCGs are some of the oldest and most massive galaxies. [6] [ dubious discuss ]

2MASS image of NGC 7049 NGC 7049 2MASS.jpg
2MASS image of NGC 7049

References

  1. 1 2 3 4 5 6 "NASA/IPAC Extragalactic Database". Results for NGC 7049. Retrieved 2016-11-18.
  2. 1 2 3 "Unusual Dusty Galaxy NGC 7049" . Retrieved 18 November 2016.
  3. "SIMBAD Astronomical Database". Results for NGC 7049. Retrieved 2016-11-16.
  4. The Astronomical League
  5. "NGC 7049, an unusual galaxy in Indus". Anne's Astronomy News (in Dutch). 2012-08-05. Retrieved 2017-06-09.
  6. Nemiroff, R.; Bonnell, J., eds. (8 April 2009). "Unusual Dusty Galaxy NGC 7049". Astronomy Picture of the Day . NASA.