β Aps - A binary star composed of a brighter component with a magnitude of 4.2 and a companion with a magnitude of 12, separated from it by 51". It is likely just an optical binary star, with its main component being of spectral class K0 and located 158 light-years away.

δ Aps - Very wide double star, easily distinguishable even with a regular telescope. The components with magnitudes 4.7 and 5.1 are separated by 103", but they are not physically related at all. These are red giants located at distances of 660 and 760 light years.

θ Aps - Variable, clearly red star, during maximum at the limit of visibility with the naked eye. Its brightness ranges between 6.4mag and 8mag with a period of just over 100 days.

S Aps - This star is a new "reverse". Usually it is brighter than 10mag, so it can be observed even with a small telescope, but it apparently irregularly emits dark material into its surroundings, which reduces its brightness by 100 times to 15mag. After a few weeks, when the veil dissipates into the surroundings, it will shine again in its original brilliance.