WDS 18500+1519 YSC 12 AB (HD 174457) : NOTES
 
 
discov_num notes refcode
YSC 12 Ren & Fu (2013) calculated an astrometric orbit, combining Hipparcos
Intermediate Astrometric Data with spectroscopic elements by
Nidever et al. (2002). They derived component masses 1.21 and 0.10 Nid2002
Msun and an estimated semimajor axis of 34.92 mas. Ren2013
HD 174457. Combined astrometric/spectroscopic solution, using
spectroscopic elements (P,T,e,omega) from Nidever et al. (2002 ApJS
141, 503). SaJ2011
 
 
REFERENCES
 
 
refcode metd author reference
Nid2002 rv - Nidever, D.L., Marcy, G.W., Butler, R.P., Fischer, D.A., & Vogt, S.S. 2002ApJS..141..503N
Nid2002 ApJS 141, 503, 2002
Ren2013 orb - Ren, S. & Fu, Y. 2013AJ....145...81R
Ren2013 AJ 145, 81, 2013
SaJ2011 orb - Sahlmann, J., Segransan, D., Queloz, D., Udry, S., Santos, N.C., Marmier, M., 2011A&A...525A..95S
SaJ2011 Mayor, M., Naef, D., Pepe, F., & Zucker, S.
SaJ2011 A&A 525, 95, 2011
Tok2018e orb - Tokovinin, A. 2018IAUDS.195....1T
Tok2018e Inf. Circ. 195, 1, 2018
 
 
DISCOVERER
 
 
idgroup discov author
1 LLO Lloyd, J.P.
2 LLO Lloyd, J.P., Martinache, F., Ireland, M.J., Monnier, J.D., Pravdo, S.H.,
2 LLO Shaklan, S.B., & Tuthill, P.G.
6 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
18500+1519 YSC 12 AB 2015 6 47 0.5 7.60 11.30 F8+M2V NO 185002.00+151840.3
18500+1519 YSC 12 AB 2018 9 38 0.5 7.60 11.30 F8+M2V NO 185002.00+151840.3
18500+1519 YSC 12 AB 2019 11 35 0.5 7.60 11.30 F8+M2V NO 185002.00+151840.3

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