WDS 19509+2235 CHE 160 : NOTES
 
 
discov_num notes refcode
CHE 160 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 actually a new pair. Bko2011c
BKO 990. BKO 990 was incorrectly identified by Berko as
19508+2234CHE 159. 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
19509+2235 CHE 160 1907 1 29 28.6 11.70 12.40 195052.50+223449.8
19509+2235 CHE 160 2000 2 30 33.6 12.30 12.80 D 195051.87+223458.9
19509+2235 CHE 160 2001 3 151 28.5 12.10 12.40 N D 195034.48+223344.3
19509+2235 CHE 160 2008 4 150 28.6 12.21 12.73 N 195034.48+223344.3
19509+2235 CHE 160 2010 5 150 28.4 12.21 12.73 N 195034.48+223344.3
19509+2235 CHE 160 2015 7 150 28.5 12.21 12.73 N 195034.48+223344.3

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