| Object . | δx . | δy . | vTa . | vRb . | velocityc . | α . | aged . |
|---|---|---|---|---|---|---|---|
| . | (mas) . | (mas) . | (km s−1) . | (km s−1) . | (km s−1) . | (degrees) . | (yr) . |
| HH 900 A | 43 (1) | −24 (0.4) | 60 (1) | – | 60 (1) | – | 3523 (115) |
| HH 900 B | 31 (1) | −2 (2) | 37 (2) | – | 37 (2) | – | 5364 (307) |
| HH 900 C | 55 (0.1) | −11 (1) | 68 (1) | – | 68 (2) | – | 2803 (87) |
| HH 900 D | 74 (1) | −31 (4) | 97 (3) | – | 97 (3) | – | 859 (34) |
| HH 900 E | 76 (2) | −25 (1) | 97 (3) | – | 97 (3) | – | 682 (25) |
| HH 900 F | −60 (1) | 42 (2) | 89 (2) | −16 (4) | 90 (5) | −10 (0.3) | 691 (24) |
| HH 900 G | −77 (1) | 39 (1) | 104 (2) | −7 (10) | 105 (10) | −4 (0.1) | 746 (24) |
| HH 900 H | −40 (3) | 14 (1) | 51 (3) | – | 51 (3) | – | 5379 (365) |
| HH 900 I | −42 (1) | 28 (1) | 61 (2) | – | 61 (2) | – | 4664 (174) |
| PCYC 838 | −3 (1) | 2 (1) | 4 (1) | – | 4 (1) | – | 11 201 (3126) |
| PCYC 842 | 5 (3) | −11.8 (0.4) | 15 (2) | – | 15 (2) | – | 1393 (140) |
| Object . | δx . | δy . | vTa . | vRb . | velocityc . | α . | aged . |
|---|---|---|---|---|---|---|---|
| . | (mas) . | (mas) . | (km s−1) . | (km s−1) . | (km s−1) . | (degrees) . | (yr) . |
| HH 900 A | 43 (1) | −24 (0.4) | 60 (1) | – | 60 (1) | – | 3523 (115) |
| HH 900 B | 31 (1) | −2 (2) | 37 (2) | – | 37 (2) | – | 5364 (307) |
| HH 900 C | 55 (0.1) | −11 (1) | 68 (1) | – | 68 (2) | – | 2803 (87) |
| HH 900 D | 74 (1) | −31 (4) | 97 (3) | – | 97 (3) | – | 859 (34) |
| HH 900 E | 76 (2) | −25 (1) | 97 (3) | – | 97 (3) | – | 682 (25) |
| HH 900 F | −60 (1) | 42 (2) | 89 (2) | −16 (4) | 90 (5) | −10 (0.3) | 691 (24) |
| HH 900 G | −77 (1) | 39 (1) | 104 (2) | −7 (10) | 105 (10) | −4 (0.1) | 746 (24) |
| HH 900 H | −40 (3) | 14 (1) | 51 (3) | – | 51 (3) | – | 5379 (365) |
| HH 900 I | −42 (1) | 28 (1) | 61 (2) | – | 61 (2) | – | 4664 (174) |
| PCYC 838 | −3 (1) | 2 (1) | 4 (1) | – | 4 (1) | – | 11 201 (3126) |
| PCYC 842 | 5 (3) | −11.8 (0.4) | 15 (2) | – | 15 (2) | – | 1393 (140) |
Notes. Proper motions measured for the YSOs and the knots marked in Fig. 8.
Uncertainties are listed in parentheses alongside the best-fitting value.
aThe transverse velocity, assuming a distance of 2.3 kpc.
bThe radial velocity measured from spectra.
cThe total velocity, assuming the average inclination when a radial velocity is not measured directly.
dTime for the object to reach its current location at the measured velocity, assuming ballistic motion.
| Object . | δx . | δy . | vTa . | vRb . | velocityc . | α . | aged . |
|---|---|---|---|---|---|---|---|
| . | (mas) . | (mas) . | (km s−1) . | (km s−1) . | (km s−1) . | (degrees) . | (yr) . |
| HH 900 A | 43 (1) | −24 (0.4) | 60 (1) | – | 60 (1) | – | 3523 (115) |
| HH 900 B | 31 (1) | −2 (2) | 37 (2) | – | 37 (2) | – | 5364 (307) |
| HH 900 C | 55 (0.1) | −11 (1) | 68 (1) | – | 68 (2) | – | 2803 (87) |
| HH 900 D | 74 (1) | −31 (4) | 97 (3) | – | 97 (3) | – | 859 (34) |
| HH 900 E | 76 (2) | −25 (1) | 97 (3) | – | 97 (3) | – | 682 (25) |
| HH 900 F | −60 (1) | 42 (2) | 89 (2) | −16 (4) | 90 (5) | −10 (0.3) | 691 (24) |
| HH 900 G | −77 (1) | 39 (1) | 104 (2) | −7 (10) | 105 (10) | −4 (0.1) | 746 (24) |
| HH 900 H | −40 (3) | 14 (1) | 51 (3) | – | 51 (3) | – | 5379 (365) |
| HH 900 I | −42 (1) | 28 (1) | 61 (2) | – | 61 (2) | – | 4664 (174) |
| PCYC 838 | −3 (1) | 2 (1) | 4 (1) | – | 4 (1) | – | 11 201 (3126) |
| PCYC 842 | 5 (3) | −11.8 (0.4) | 15 (2) | – | 15 (2) | – | 1393 (140) |
| Object . | δx . | δy . | vTa . | vRb . | velocityc . | α . | aged . |
|---|---|---|---|---|---|---|---|
| . | (mas) . | (mas) . | (km s−1) . | (km s−1) . | (km s−1) . | (degrees) . | (yr) . |
| HH 900 A | 43 (1) | −24 (0.4) | 60 (1) | – | 60 (1) | – | 3523 (115) |
| HH 900 B | 31 (1) | −2 (2) | 37 (2) | – | 37 (2) | – | 5364 (307) |
| HH 900 C | 55 (0.1) | −11 (1) | 68 (1) | – | 68 (2) | – | 2803 (87) |
| HH 900 D | 74 (1) | −31 (4) | 97 (3) | – | 97 (3) | – | 859 (34) |
| HH 900 E | 76 (2) | −25 (1) | 97 (3) | – | 97 (3) | – | 682 (25) |
| HH 900 F | −60 (1) | 42 (2) | 89 (2) | −16 (4) | 90 (5) | −10 (0.3) | 691 (24) |
| HH 900 G | −77 (1) | 39 (1) | 104 (2) | −7 (10) | 105 (10) | −4 (0.1) | 746 (24) |
| HH 900 H | −40 (3) | 14 (1) | 51 (3) | – | 51 (3) | – | 5379 (365) |
| HH 900 I | −42 (1) | 28 (1) | 61 (2) | – | 61 (2) | – | 4664 (174) |
| PCYC 838 | −3 (1) | 2 (1) | 4 (1) | – | 4 (1) | – | 11 201 (3126) |
| PCYC 842 | 5 (3) | −11.8 (0.4) | 15 (2) | – | 15 (2) | – | 1393 (140) |
Notes. Proper motions measured for the YSOs and the knots marked in Fig. 8.
Uncertainties are listed in parentheses alongside the best-fitting value.
aThe transverse velocity, assuming a distance of 2.3 kpc.
bThe radial velocity measured from spectra.
cThe total velocity, assuming the average inclination when a radial velocity is not measured directly.
dTime for the object to reach its current location at the measured velocity, assuming ballistic motion.
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