Relative positions of the components in Trapezium-type multiple systems.

This paper deals with relative positions of stars of Trapezium type multiple systems: N2, 34, 48, 49, 51, 62, 75, 78, 88, 94, 98, 108, 129, 245, 253, 312, 313, 316, 324, 348, 356, 359, 363, 387, 395. On average 4 - 5 plates were taken for measuring each multiple system. The relative positions of stars for 25 Trapezium type multiple systems as well as the distances and position angles for the mean observational epochs are listed and the mean errors for determining the distances and position angles are given.