Solar collector collecting pipe comprising a) a pipe body which by a wall limits an interior space into which an inlet of the pipe body and an outlet of the pipe body open and b) a plurality of accommodations (15, 16) for heat absorption elements, c) the accommodations (15, 16) being arranged at the pipe body at locations distributed along a longitudinal axis x, d) the accommodations (15, 16) comprising a sleeve (17, 18; 33; 36, 37) which da) extends under the provision of a sealing effect through at least one opening (21, 22, 23, 24) of the wall of the pipe body, db) is fixed at the wall of the pipe body and dc) comprises an insertion recess (26, 27), and e) the insertion recess (26, 27) ea) comprising a geometry corresponding to the geometry of the heat absorption element in an insertion region of the heat absorption element, eb) being open in outer direction such that it is possible to introduce the heat absorption element into the same and ec) being fluidically decoupled from the interior space, characterised in that f) a longitudinal axis (19, 20) of the insertion recess (26, 27) fa) in a projection into an x-y-plane forms an angle α relative to a transverse axis y of the pipe body and fb) in a projection into a y-z-plane forms an angle β relative to the transverse axis y of the pipe body where z is an upright axis having an orientation vertical to the longitudinal axis x and to the transverse axis y and g) two rows (57, 58) of insertion recesses (26, 27) are arranged on opposite sides of the pipe body where ga) the two rows (57, 58) are arranged with an offset to each other in the direction of the longitudinal axis x with a distance or gb) the sleeves are angled and comprise sleeve parts (34, 35) which are each inclined by the angle β relative to the transverse axis y, the sleeves with each of the sleeve parts (34, 35) forming an accommodation (15, 16) with an insertion recess (26, 27) such that it is possible to introduce a respective heat absorption element from both sides into the angled sleeve. a) a pipe body which by a wall limits an interior space into which an inlet of the pipe body and an outlet of the pipe body open and b) a plurality of accommodations (15, 16) for heat absorption elements, c) the accommodations (15, 16) being arranged at the pipe body at locations distributed along a longitudinal axis x, d) the accommodations (15, 16) comprising a sleeve (17, 18; 33; 36, 37) which da) extends under the provision of a sealing effect through at least one opening (21, 22, 23, 24) of the wall of the pipe body, db) is fixed at the wall of the pipe body and dc) comprises an insertion recess (26, 27), and da) extends under the provision of a sealing effect through at least one opening (21, 22, 23, 24) of the wall of the pipe body, db) is fixed at the wall of the pipe body and dc) comprises an insertion recess (26, 27), and e) the insertion recess (26, 27) ea) comprising a geometry corresponding to the geometry of the heat absorption element in an insertion region of the heat absorption element, eb) being open in outer direction such that it is possible to introduce the heat absorption element into the same and ec) being fluidically decoupled from the interior space, characterised in that ea) comprising a geometry corresponding to the geometry of the heat absorption element in an insertion region of the heat absorption element, eb) being open in outer direction such that it is possible to introduce the heat absorption element into the same and ec) being fluidically decoupled from the interior space, f) a longitudinal axis (19, 20) of the insertion recess (26, 27) fa) in a projection into an x-y-plane forms an angle α relative to a transverse axis y of the pipe body and fb) in a projection into a y-z-plane forms an angle β relative to the transverse axis y of the pipe body where z is an upright axis having an orientation vertical to the longitudinal axis x and to the transverse axis y and fa) in a projection into an x-y-plane forms an angle α relative to a transverse axis y of the pipe body and fb) in a projection into a y-z-plane forms an angle β relative to the transverse axis y of the pipe body where z is an upright axis having an orientation vertical to the longitudinal axis x and to the transverse axis y and g) two rows (57, 58) of insertion recesses (26, 27) are arranged on opposite sides of the pipe body where ga) the two rows (57, 58) are arranged with an offset to each other in the direction of the longitudinal axis x with a distance or gb) the sleeves are angled and comprise sleeve parts (34, 35) which are each inclined by the angle β relative to the transverse axis y, the sleeves with each of the sleeve parts (34, 35) forming an accommodation (15, 16) with an insertion recess (26, 27) such that it is possible to introduce a respective heat absorption element from both sides into the angled sleeve. ga) the two rows (57, 58) are arranged with an offset to each other in the direction of the longitudinal axis x with a distance or gb) the sleeves are angled and comprise sleeve parts (34, 35) which are each inclined by the angle β relative to the transverse axis y, the sleeves with each of the sleeve parts (34, 35) forming an accommodation (15, 16) with an insertion recess (26, 27) such that it is possible to introduce a respective heat absorption element from both sides into the angled sleeve.