WDS 19515+2240 CHE 168 : NOTES
 
 
discov_num notes refcode
CHE 168 There was an error in Chevalier's coordinates due to incorrect Che1908
plate center coordinates. In addition, there was a trigonometric
error in deriving theta; the correct value is 180deg - theta. Hrt2012b
Berko's match is actually CHE 174. Bko2011c
 
 
REFERENCES
 
 
refcode metd author reference
Bko2011c C u Berko, E. ...................
Bko2011c Webb Soc., Double Star Circ. 19, 42, 2011 (BKO 981 - BKO1042)
Che1908 Pa - Chevalier, Stanislas .
Che1908 Shanghai Obs. Zo-Se 4, 60, 1908 (corrections described in Bko2011c and Hrt2012b)
Hrt2012b E2 - Hartkopf, W.I. ...................
Hrt2012b Webb Soc., Double Star Circ. 20, 2012
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19515+2240 CHE 168 1907 1 49 15.5 11.81 13.80 195130.79+223903.0
19515+2240 CHE 168 2000 2 137 14.9 12.60 13.60 N 195109.35+223933.1
19515+2240 CHE 168 2001 3 137 14.9 12.60 13.60 N 195109.35+223933.1
19515+2240 CHE 168 2015 4 137 14.8 12.60 13.60 N 195109.35+223933.1

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