WDS 19027+4307 YSC 13 (HD 177412) : NOTES
 
 
discov_num notes refcode
YSC 13 Slightly metal-poor F5 primary. Preliminary orbit gives a mass sum 5.8
+/- 2.1 Msun; the magnitude difference suggests an F2 primary and F8
secondary, but this would imply a mass sum ~3 Msun Hor2012b
 
 
REFERENCES
 
 
refcode metd author reference
Doc2013j orb - Docobo, J.A., Campo, P., & Horch, E. 2013IAUDS.181S...1D
Doc2013j Inf. Circ. 181, 1, 2013
Hor2012b S j Horch, E.P., Howell, S.B., Everett, M.E., & Ciardi, D.R. 2012AJ....144..165H
Hor2012b +orb AJ 144, 165, 2012
 
 
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
19027+4307 YSC 13 2006 2 110 0.1 7.89   D 190239.41+430702.9
19027+4307 YSC 13 2008 4 130 0.1 8.30 9.20 D 190239.41+430702.9
19027+4307 YSC 13 2010 5 147 0.1 8.30 9.20 D 190239.41+430702.9
19027+4307 YSC 13 2012 8 175 0.1 8.30 9.20 D 190239.41+430702.9
19027+4307 YSC 13 2014 10 248 0.0 8.30 9.20 NO 190239.41+430702.9
19027+4307 YSC 13 2017 18 77 0.1 8.30 9.20 F6IV NO 190239.41+430702.9
19027+4307 YSC 13 2019 20 107 0.1 8.30 9.20 F6IV NO 190239.41+430702.9

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