Anton:
The first point I noticed is that the star divides the sky in eight parts. This is the case in a number of other charts in this section. Perhaps this eight-part system corresponds to the 24 hours? (24/3=8)
Maybe the pipes represents measurements one can/should make? Just looking at the pipes, if you see what they are "looking at", it's usually an alignment of stars (in the blue section).
The first point I noticed is that the star divides the sky in eight parts. This is the case in a number of other charts in this section. Perhaps this eight-part system corresponds to the 24 hours? (24/3=8)
Maybe the pipes represents measurements one can/should make? Just looking at the pipes, if you see what they are "looking at", it's usually an alignment of stars (in the blue section).