WDS 19540+2309 CHE 183 : NOTES
 
 
discov_num notes refcode
CHE 183 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 to this pair was correct. 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
19540+2309 CHE 183 1907 1 356 8.7 11.10 12.50 195356.31+230820.0
19540+2309 CHE 183 2008 3 188 6.8 11.90 13.80 N 195339.16+230711.3
19540+2309 CHE 183 2015 5 189 6.6 11.90 13.80 N 195339.16+230711.3

If you need more information about this double, apply for a data request form to the WDS.