NGC 5899 builds a non-interacting pair with NGC 5900. But the above
image shows some signs of interaction in NGC 5899 (better visible in the
inverted image). East of NGC 5899 one can see a loop. The faint galaxy SDSS
J151510.91+420334.6 seems to be a part of this loop. So, maybe this loop is
a stellar stream. Also NGC 5900 shows some interesting structures in the
inverted image.
The galaxy group near the bottom right corner of the above image,
consisting of NGC 5893, NGC 5895 and NGC 5896 is listed as Holmberg 701 in
the Catalogue of Double and
Multiple Galaxies.
The brightest members of the galaxy cluster NSCS J151456+420852 (distance
= 3.6 billion light years) are clearly visible, as indicated in the object
identification image. |