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Table 2

Proper motions of identified features.

Feature name x (′′) y (′′) μx (′′ yr-1) μy (′′ yr-1) ϵ(μx) ϵ(μy) vt (km s-1) PA (deg)
E6 −0.07 −3.21 −0.0106 −0.0133 0.005 0.0025 81   ±   23 −38   ±   18
E5 −0.52 −4.03 −0.0003 −0.0130 0.002 0.002 62   ±   18 −1   ±   16
E1 −0.02 −6.54 0.0020 −0.0608 0.002 0.002 288   ±   18 2   ±   3
E11 0.25 −3.16 0.0126 −0.0180 0.002 0.002 105   ±   18 35   ±   10
E10 0.61 −3.88 0.0084 −0.0237 0.0024 0.0021 119   ±   17 20   ±   9
E9 0.0148 −0.0298 0.0023 0.0025 158   ±   18 26   ±   7
E9a 0.65 −4.32 0.0004 −0.0134 0.0021 0.0021 64   ±   17 2   ±   16
E9b 1.04 −4.32 0.0097 −0.0170 0.0021 0.0022 93   ±   18 30   ±   11
E9c 0.88 −4.83 0.0180 −0.0235 0.0023 0.0022 141   ±   19 37   ±   8
E8 1.67 −5.28 0.0197 −0.0477 0.0021 0.0021 245   ±   18 22   ±   4
E7 1.71 −6.35 0.0330 −0.0848 0.0022 0.0051 432   ±   27 21   ±   3
W5 0.52 2.96 0.0047 0.0139 0.0021 0.0026 70   ±   19 19   ±   14
W6 0.05 3.22 0.0112 0.0192 0.0025 0.0023 106   ±   18 30   ±   10
W4(b) 0.43 3.90 0.0091 0.0750 0.0025 0.0023 360   ±   18 7   ±   3
W3(a) −0.47 3.85 −0.0141 0.0051 0.0385 0.0030 194   ±   21 −20   ±   8
W3(b) −0.42 4.22 0.0065 0.0570 0.0030 0.0027 272   ±   19 6   ±   4
W2 −0.87 5.30 −0.0001 0.0171 0.0021 0.0026 81   ±   19 −0   ±   12
W1(a) −0.65 6.10 0.0004 0.8150 0.0004 0.0028 387   ±   19 0   ±   3
W1(b) −0.76 6.87 −0.0033 0.0790 0.0022 0.0022 374   ±   18 −2   ±   3
A′a −0.20 −1.50 −0.0008 −0.0001 0.0021 0.0021 4   ±   18 −89   ±   76
R1b −1.12 −2.53 −0.0010 −0.0177 0.0021 0.0023 84   ±   18 −3.4   ±   12
R2-Eb −0.54 −2.45 0.0012 −0.0141 0.0021 0.0021 67   ±   17 4.9   ±   15
R2-Wb −0.60 −2.78 0.0021 −0.0230 0.0021 0.0024 109   ±   18 5.4   ±   10
E lobe J1c 0.0022 −0.0610 0.0021 0.0024 289.5   ±   18 2   ±   3
E lobe J2c 0.0023 −0.0460 0.0023 0.0021 243.3   ±   14 26   ±   4
W lobe J1c 0.0010 0.0257 0.0021 0.0022 122.1   ±   18 2   ±   8
W lobe J2c 0.0014 0.0254 0.0021 0.0021 120.7   ±   17 3   ±   8

Notes. The distances x and y are measured from the position of the central compact H II region.

(a)

Reference feature.

(b)

Ring-like structure seen in the innermost part of the east lobe.

(c)

The boxes used to measure the proper motion of the east and west lobes are shown in blue in Fig. 6.

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