Reflector arrangement (20, 30, 40) for determining the position and/or marking of target points, in particular for industrial and/or geodetic surveying, having at least • one retroreflector (21, 31, 41a, 41b), which □ provides a position determination for the reflector arrangement (20, 30, 40) by means of parallel, in particular coaxial, measurement beam reflection, □ provides a passage surface (23, 33) for at least a part of measurement radiation (5, 28) entering the retroreflector (21, 31, 41a, 41b) as orientation measurement radiation, and □ provides a reflector field of view having a first aperture angle around a yaw axis and a second aperture angle around a pitch axis orthogonal to the yaw axis, and • a beam detection unit (50, 70), by means of which the orientation measurement radiation passing through the retroreflector (21, 31, 41a, 41b) is acquirable, wherein a spatial orientation of the reflector arrangement (20, 30, 40) is definable with the aid of an orientation of a body-intrinsic coordinate system defined by at least the yaw axis in relation to an external coordinate system at least with the aid of a relative yaw angle (β), wherein the yaw angle (β) specifies a rotational alignment of the reflector arrangement around the yaw axis, wherein the beam detection unit (50, 70) comprises • a first sensor (25, 35, 45a, 45b, 75a, 75b) for generating a signal in dependence on an acquisition of orientation measurement radiation and • a first beam guiding unit (77a, 77b), wherein the first sensor (25, 35, 45a, 45b, 75a, 75b) and the first beam guiding unit are arranged in such a way that • a detection field of view (56a, 56b) for acquiring the orientation measurement radiation is defined by an interaction of the first beam guiding unit (77a, 77b) and the first sensor (25, 35, 45a, 45b, 75a, 75b), which field of view has an aperture angle around the yaw axis which is less than the first aperture angle of the reflector field of view, • an alignment of the detection field of view (56a, 56b) around the yaw axis is variable by means of a pivot or rotation of the first beam guiding unit (77a, 77b) around the yaw axis, and • orientation measurement radiation passing through the retroreflector (21, 31, 41a, 41b) is acquirable in dependence on the alignment of the detection field of view using the first sensor (25, 35, 45a, 45b, 75a, 75b), and wherein the first beam guiding unit (77a, 77b) defines a rotational axis (26, 36, 46), in particular aligned coaxially to the yaw axis, wherein the first beam guiding unit (77a, 77b) is rotatably mounted around the rotational axis (26, 36, 46) for variation of the alignment of the detection field of view (56a, 56b) and provides a rotation-angle-dependent acquisition of the orientation measurement radiation. • one retroreflector (21, 31, 41a, 41b), which □ provides a position determination for the reflector arrangement (20, 30, 40) by means of parallel, in particular coaxial, measurement beam reflection, □ provides a passage surface (23, 33) for at least a part of measurement radiation (5, 28) entering the retroreflector (21, 31, 41a, 41b) as orientation measurement radiation, and □ provides a reflector field of view having a first aperture angle around a yaw axis and a second aperture angle around a pitch axis orthogonal to the yaw axis, and □ provides a position determination for the reflector arrangement (20, 30, 40) by means of parallel, in particular coaxial, measurement beam reflection, □ provides a passage surface (23, 33) for at least a part of measurement radiation (5, 28) entering the retroreflector (21, 31, 41a, 41b) as orientation measurement radiation, and □ provides a reflector field of view having a first aperture angle around a yaw axis and a second aperture angle around a pitch axis orthogonal to the yaw axis, and • a beam detection unit (50, 70), by means of which the orientation measurement radiation passing through the retroreflector (21, 31, 41a, 41b) is acquirable, wherein a spatial orientation of the reflector arrangement (20, 30, 40) is definable with the aid of an orientation of a body-intrinsic coordinate system defined by at least the yaw axis in relation to an external coordinate system at least with the aid of a relative yaw angle (β), wherein the yaw angle (β) specifies a rotational alignment of the reflector arrangement around the yaw axis, wherein the beam detection unit (50, 70) comprises • a first sensor (25, 35, 45a, 45b, 75a, 75b) for generating a signal in dependence on an acquisition of orientation measurement radiation and • a first beam guiding unit (77a, 77b), wherein the first sensor (25, 35, 45a, 45b, 75a, 75b) and the first beam guiding unit are arranged in such a way that • a detection field of view (56a, 56b) for acquiring the orientation measurement radiation is defined by an interaction of the first beam guiding unit (77a, 77b) and the first sensor (25, 35, 45a, 45b, 75a, 75b), which field of view has an aperture angle around the yaw axis which is less than the first aperture angle of the reflector field of view, • an alignment of the detection field of view (56a, 56b) around the yaw axis is variable by means of a pivot or rotation of the first beam guiding unit (77a, 77b) around the yaw axis, and • orientation measurement radiation passing through the retroreflector (21, 31, 41a, 41b) is acquirable in dependence on the alignment of the detection field of view using the first sensor (25, 35, 45a, 45b, 75a, 75b),