PDS 144 is a pair of Herbig Ae stars that are separated by 5.35 \arcsec on the sky . It has previously been shown to have an A2Ve Herbig Ae star viewed at 83 ^ { \circ } inclination as its northern member and an A5Ve Herbig Ae star as its southern member . Direct imagery revealed a disk occulting PDS 144 N - the first edge-on disk observed around a Herbig Ae star . The lack of an obvious disk in direct imagery suggested PDS 144 S might be viewed face-on or not physically associated with PDS 144 N. Multi-epoch HST imagery of PDS 144 with a 5 yr baseline demonstrates PDS 144 N & S are comoving and have a common proper motion with TYC 6782-878-1 . TYC 6782-878-1 has previously been identified as a member of Upper Sco sub-association A at d = 145 \pm 2 pc with an age of 5 - 10 Myr . Ground-based imagery reveals jets and a string of HH knots extending 13 \arcmin ( possibly further ) which are aligned to within 7 \degree \pm 6 \degree on the sky . By combining proper motion data and the absence of a dark mid-plane with radial velocity data , we measure the inclination of PDS 144 S to be i = 73 \degree \pm 7 \degree . The radial velocity of the jets from PDS 144 N & S indicates they , and therefore their disks , are misaligned by 25 \degree \pm 9 \degree . This degree of misalignment is similar to that seen in T-Tauri wide binaries .