WDS 18243-0405 YSC 67 AB (HD 169310) : NOTES
 
 
discov_num notes refcode
YSC 67 AB + TOK 420Aa,Ab: The neglected pair YSC 67 turned out to be a new
triple. The outer 0".35 binary AB was known previously, now we detect
elongation that implies an inner subsystem Aa,Ab. We compared with
stars in the same area of the sky observed before and after to assure
that the elongation is not of instrumental origin; it is seen in two
filters. Tok2015c
 
 
REFERENCES
 
 
refcode metd author reference
Tok2015c orb+j Tokovinin, A., Mason, B.D., Hartkopf, W.I., Mendez, R.A., & Horch, E.P. 2015AJ....150...50T
Tok2015c +St AJ 150, 50, 2015 (some measures corrected in Tok2017b) 2017AJ....154..110T
 
 
DISCOVERER
 
 
idgroup discov author
1 YSC Yale-Southern Connecticut (from additional DD list - see HOR)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18243-0405 YSC 67 AB 2014 5 0 0.4 7.70 9.90 A3 182417.38-040517.7
18243-0405 YSC 67 AB 2015 9 359 0.4 7.70 9.90 A3 182417.38-040517.7
18243-0405 YSC 67 AB 2017 10 359 0.4 7.70 9.90 A3 N 182417.38-040517.7
18243-0405 YSC 67 AB 2018 11 358 0.4 7.70 9.90 A3 N 182417.38-040517.7
18243-0405 YSC 67 AB 2019 12 357 0.4 7.70 9.90 A3 N 182417.38-040517.7
18243-0405 YSC 67 AB 2020 15 358 0.4 7.70 9.90 A3 N 182417.38-040517.7
18243-0405 YSC 67 AB 2021 18 356 0.4 7.70 9.90 A3 N 182417.38-040517.7

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