NGC 6232, 6236, 6248 - A Galaxy Trio (Jim Thommes)

Celestial hemisphere: Northern · Constellation: Draco (Dra) · Contains: NGC 6232 · NGC 6236 · NGC 6248

NGC 6232, 6236, 6248 - A Galaxy Trio

Link: https://jthommes.com/Astro/NGC6232.htm

NGC 6232, 6236, 6248 - A Galaxy Trio

Link: https://jthommes.com/Astro/NGC6232.htm

This image shows a trio of spiral galaxies, NGC 6232, NGC 6236, and NGC 6248. The upper two galaxies NGC 6236 - SAB(s)cd, and NGC 6248 - SBd, are a pair in a group ([TSK2008] 818 group). They are very similar in radial velocity, redshift, and distance estimates (both redshift and Tully Fisher estimates). These galaxies have a low radial velocity of about 1,200 to 1,300 km/sec. As such, the redshift distances are lower than their Tulley-Fisher estimates (51-58 million light years by redshift vs. 76-77 million light years by Tulley-Fisher).

NGC 6232 - (R')SB(s), is sort of the opposite with a high radial velocity (about 4,440 km/sec) and has a higher redshift distance estimate than the Tullley-Fisher (202 million light years by redshift vs. 58 million light years by Tully-Fisher).

This region is otherwise relatively lightly studied. There are numerous background galaxies that can be seen in the full size image but most only have IR or UV source designations in 2MASS, GALEX, or WISE. The furthest objects are a few Quasars or Quasar Candidates and their distances range from 3.49 to 10.56 billion years (Lookback). These objects, information, background galaxies, and some of the brighter stars are identified in the annotated image.

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NGC 6232, 6236, 6248 - A Galaxy Trio

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NGC 6232, 6236, 6248 - A Galaxy Trio

NGC 6232, 6236, 6248 - A Galaxy Trio

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