NGC 1566, sometimes known as the Spanish Dancer,[7][8][9] is an intermediate spiral galaxy in the constellation Dorado, positioned about 3.5° to the south of the star Gamma Doradus.

The X-ray emission from the group is dominated by the hot gas halo of this galaxy, which extends out to 29 kpc before merging with the background radiation.

[12] Radio emissions suggest the disk is asymmetrical and the neutral hydrogen gas shows a mild warp.

[4] The morphological classification of NGC 1566 is SAB(rs)bc,[4] which indicates a spiral galaxy with a weak bar structure around the nucleus (SAB), an incomplete ring around the bar (rs), and showing wound arms (bc).

The proximity of the galaxy, along with strong spiral arms and an active nucleus, have made it the subject of much scientific study in the astronomy community.