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Hubble image of Arp 87, also known as NGC 3808 and NGC 3808A.

NGC 3808 (right) is a nearly face-on spiral galaxy with a bright ring of star formation and two spiral arms. It is interacting with its companion NGC 3808A (left). NGC 3808A is seen edge-on and is surrounded by a ring of stars and gas perpendicular to the plane of its disk, making it a polar ring galaxy.

Credit: NASA, ESA, and the Hubble Heritage Team
Source: science.nasa.gov/asset/hubble/

A pair of interacting galaxies. On the right is a nearly face-on spiral. It has a small, bright central core, surrounded by a haze of yellow stars. Surrounding this is a ring of blue stars, dotted by blue star clusters. Two wide spiral arms emerge from the ring, crossed by dark brown dust lanes. They fan out, almost connecting back to the main body of the galaxy. A line of blue star clusters begins at the left spiral arm and arcs around the body of the galaxy. The left arm extends out connecting to its companion galaxy at left. The left galaxy is an edge-on disk, seen as a wide, angled line of yellowish stars. A stream of blue stars, star clusters, and gas appears to come from its companion's spiral arm and wrap one and a half times around the disk galaxy. A third galaxy, a smaller edge-on spiral, is seen to the left of the disk galaxy. The black background of space is dotted with a few foreground stars and tiny background galaxies.
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