WDS 17247+3802 COU 1142 AB (HD 157948) : NOTES
 
 
discov_num notes refcode
HSL 1 Aa,Ab. Masses of 0.887+/-0.030 and 0.788+/-0.021 are determined. Hor2006d
Aa,Ab: Malkov et al. (2012) derive dynamical, photometric, and
spectroscopic masses 2.37 +/- 0.30, 2.12, and 0.95 Msun, respectively. Mlk2012
Aa,Ab: For the Horch et al. (2015) combined solution, spectroscopic
elements are fixed to those of Goldberg et al. (2002 AJ 124, 1132).
Assigned spectral types for Aa, Ab, and Ac are G5V, G8V, and K6V;
derived masses for Aa and Ab are 0.92 and 0.84 Msun. Hor2015
 
 
REFERENCES
 
 
refcode metd author reference
Hor2006d Hf j Horch, E.P., Franz, O.G., Wasserman, L.H. & Heasley, J.N. 2006AJ....132..836H
Hor2006d +S AJ 132, 836, 2006
Hor2006d +orb
Hor2015 S j Horch, E.P., van Altena, W.F., Demargue, P., Howell, S.B., Everett, M.E., 2015AJ....149..151H
Hor2015 +orb Ciardi, D.R., Teske, J.K., Henry, T.J., & Winters, J.G.
Hor2015 AJ 149, 151, 2015
Mlk2012 not - Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. 2012A&A...546A..69M
Mlk2012 A&A 546, A69, 2012
 
 
DISCOVERER
 
 
idgroup discov author
1 COU Couteau, P.
240 HSL Heasley, J.N., Franz, O.G., Wasserman, L.H., & Horch, E.P.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17247+3802 COU1142 AB 1998 6 217 2.0 8.18 12.21 G5 D 172442.41+380210.5
17247+3802 COU1142 AB 2009 7 219 2.1 8.18 12.21 G5 N D 172442.41+380210.5
17247+3802 COU1142 AB 2015 9 221 1.9 8.18 12.21 G5 N 172442.41+380210.5
17247+3802 COU1142 AB 2018 16 222 1.8 8.18 12.21 G5 N 172442.41+380210.5

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