In order to observe the southern stars that could not be seen on the observatory's latitude, the scientists organized two observing locations. One of them was an astrophysical station in the Crimean town of Simeiz (Simeiz Observatory), which had been organized on the basis of a private observatory presented to the Pulkovo Observatory by an astronomy lover N. S. Maltsev in 1908. The other was an astrometric station in Nikolaev – a former observatory of the Department of the Navy, (today's Nikolaev Astronomical Observatory).