Table 1: Peak positions of the H$\alpha $ knots of HH 223 and H$\alpha $ nebulosities in L723.
Object $\alpha_{2000}$ $\delta_{2000}$ Notes
HH 223 knots:      
A 19 17 57.97 +19 11 50.7  
B 19 17 57.72 +19 11 50.1  
C 19 17 57.43 +19 11 53.3  
D 19 17 57.30 +19 11 53.0  
E 19 17 57.03 +19 11 52.1  
F1 19 17 56.66 +19 11 50.9 (1)
F2 19 17 56.66 +19 11 53.4 (1)
F3 19 17 56.56 +19 11 52.9 (1)
H$\alpha $ nebulosities:      
N1 19 17 59.0 +19 11 42 (2)
N2 19 17 55.0 +19 11 53 (2)
HH 223-SE1 19 18 06.1 +19 11 21 (2)
HH 223-SE2 19 18 04.3 +19 11 16 (2)
HH 223-NW1 19 17 47.3 +19 13 01 (2)
HH 223-NW2 19 17 46.8 +19 13 12 (2)
Notes: (1) Peak positions of the emission enhancements found in the faint extended arc-like filamentary emission westwards of knot E; (2) position of the centroid of the nebulosity.


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