Image Details
Caption: Figure 11.
Position angle between θ
1 Ori
B
1 and the barycenter of the
B
2
B
3 binary. Note how over 15 yr of observation there has been little relative PA motion observed (0
030 ± 0
044 yr
−1 which is just significant at the 88% level). The epochs of the data are the same as in Figure
10.
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