WDS 19550+4152 HO 581 (HD 188753) : NOTES
 
 
discov_num notes refcode
HO 581 Noted as a spectroscopic binary by Griffin. Grf1977a
One star, probably the primary, is SB1, P = 155.0 d; Hei1981e
#1187 in Batten et al. Bte1989
Muller (1953) corrected an error in the semi-major axis by Mlr1953a
Van Biesbroeck. VBs1927b
Martin et al. (1998) derive component masses 1.304 +/- 0.187 and
1.107 +/- 0.172 Msun. Mig1998
Malkov et al. (2012) derive dynamical, photometric, and spectroscopic
masses of 2.94 +/- 1.61, 2.07, and 0.88 Msun, respectively. Mlk2012
Astroseismic orbit analysis results in masses of 0.99 +/- 0.01 \msun XXX2018c
for A. 0.767 +/- 0.006 \msun for Ba and 0.66 +/- 0.01 \msun for Bb.
The orbital parallax is 21.9 +/- 0.2 mas.
 
 
REFERENCES
 
 
refcode metd author reference
Bte1989 - Batten, A.H. & Fletcher, J.M. 1989PDAO...17....1B
Bte1989 Eighth Catalogue of the Orbital Elements of Spectroscopic Binary Systems; 89
Bte1989 Pub. DAO 17, 1, 19
Grf1977a orb - Griffin, R.F. 1977Obs....97...15G
Grf1977a Observatory 97, 15, 1977
Hei1981e - Heintz, W.D. 1981ApJS...46..247H
Hei1981e ApJS 46, 247, 1981
Mig1998 orb - Martin, Ch., Mignard, F., Hartkopf, W.I., & McAlister, H.A. 1998A&AS..133..149M
Mig1998 A&AS 133, 149, 1998
Mlk2012 not - Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. 2012A&A...546A..69M
Mlk2012 A&A 546, A69, 2012
Mlr1953a - Muller, P. 1953JO.....36..104M
Mlr1953a J. Obs. 36, 104, 1953
VBs1927b orb - Van Biesbroeck, G. 1927BAN.....3..259V
VBs1927b BAN 3, 259, 1927
XXX2018c orb+ Marcadon, F., Appourchaux, T. & Marques, J.P. 2018A&A...617A...2M
XXX2018c +not A&A 617, 2, 2018
 
 
DISCOVERER
 
 
idgroup discov author
1 HO Hough, G.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19550+4152 HO 581 2003 121 111 0.3 8.03 8.72 G9V NOD 195458.41+415215.0
19550+4152 HO 581 2006 122 133 0.3 8.03 8.72 G9V NOD 195458.41+415215.0
19550+4152 HO 581 2010 119 191 0.2 8.03 8.72 G9V NO 195458.40+415217.6
19550+4152 HO 581 2012 120 230 0.1 8.03 8.72 G9V NO 195458.40+415217.6

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