HD 100453 is a binary star system which lies in the constellation Centaurus about 350 light years away from the Sun and is a member of the open cluster Scorpius–Centaurus association.

[6] The secondary is an M4 class red dwarf star at the projected separation 120 AU from the primary.

The disk misalignment may be caused by a suspected superjovian planet orbiting within the gap,[3] roughly 15–20 AU from the primary.

[6] The gas present in the disks is unusually depleted in nitrogen and hydrogen-bearing compounds and enriched in carbon monoxide.

[11] No disks were detected around the companion star HD 100453B, with the upper limit on the amount of dust around it being 0.03 M🜨.