Click here for a higher-resolution image
The arrow a little to the left of bottom center points to SDSS J172100.76+601721.0, a distant quasar in the constellation Draco. The NED page for this quasar lists its redshift as 5.799, which makes it very distant indeed, as shown by the graph below, in which the relationship between redshift and distance (as measured by light-travel time) is plotted.
The quasar's light-travel time of 12.8 billion years means that when we look at it we are seeing 93% of the way back to the big bang, since the age of the universe is 13.8 billion years. This quasar shines at about magnitude 19, which makes it quite easy to capture with a modern CCD camera. This is a 3-hour LRGB image with 90:30:30:30 minutes of exposure.
The large galaxy in the upper right is NGC 6361, with small PGC 60040 just to its lower right. Together these two galaxies are known as Arp 124, being entry 124 in his Atlas of Peculiar Galaxies.