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Doubles in session


Current system
11159+1318
MCA 35
73 Leo


Nearby doubles
50' : 11167+1406
HJL1061

71' : 11151+1428
GWP1563

74' : 11190+1416
STF1527

78' : 11183+1210
GWP1572

82' : 11122+1217
CVR1348

93' : 11210+1413
CVR1360

96' : 11216+1231
FMR 219

97' : 11196+1158
LDS4082

97' : 11137+1147
RAO 259

97' : 11100+1237
LDS6240

120' : 11190+1129
HJ 179

121' : 11100+1443
HEI 60

128' : 11243+1354
HDS1622AB

131' : 11099+1456
BPMA 44AB

132' : 11104+1502
HEI 61

133' : 11075+1232
J 2079AB

134' : 11243+1410
HJ 180

135' : 11144+1531
BU 1283

137' : 11095+1138
LDS4066

138' : 11208+1515
LDS4085

138' : 11115+1520
BPM 580

139' : 11247+1410
SKF1078

139' : 11115+1115
DVG 30

141' : 11111+1116
DVG 29

144' : 11061+1325
BRT1271

147' : 11108+1524
BRT1272



Selections
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Quadruple Systems
Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.
 
 
WDS 11159+1318 MCA 35 (73 Leo) : NOTES
 
 
discov_num notes refcode
MCA 35 73 Leo. A spectroscopic binary now resolved by speckle interferometry.
1985.1123, 1985.2053: This system has been observed at the limit of
resolution of a 2-m telescope, so delta m is probably < 1. Bnu1986
Values of P, T, e, and omega for the Ren & Fu (2007) orbit are adopted RSl2007
from the orbit of Mason et al. (1997). Their derived masses for the Msn1997b
primary and secondary are 1.81 +/- 0.49 and 1.54 +/- 0.42 Msun,
respectively. The authors note that these masses are less than the
ones predicted by either the Mason et al. or Mante (2002) solutions, Mnt2002a
but that their secondary mass is in reasonable agreement with the
value expected for an F1 main-sequence star.
Martin et al. (1998) derive component masses 2.624 +/- 1.197 and
2.315 +/- 1.075 Msun. Mig1998
Malkov et al. (2012) derive dynamical and spectroscopic masses
2.49 +/- 0.65 and 2.40 Msun, respectively. Mlk2012
 
 
REFERENCES
 
 
refcode metd author reference
Bnu1986 S j Bonneau, D., Balega, Y., Blazit, A, Foy, R., Vakili, F., & Vidal, J.L. 1986A&AS...65...27B
Bnu1986 A&AS 65, 27, 1986
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
Mnt2002a orb - Mante, R. 2002IAUDS.146....1M
Mnt2002a Inf. Circ. 146, 1, 2002
Msn1997b Sc j Mason, B.D., McAlister, H.A., Hartkopf, W.I., Griffin, R.F. & Griffin, R.E.M. 1997AJ....114.1607M
Msn1997b +orb AJ 114, 1607, 1997
RSl2007 orb - Ren Shu-lin & Fu Yan-ning .
RSl2007 Chinese Astron. & Astrophys. 31, 277, 2007
 
 
DISCOVERER
 
 
idgroup discov author
1 MCA McAlister, H.A.
46 MCA McAlister, H.A., Hartkopf, W.I., Bagnuolo, W.G., Sowell, J.R., Franz, O.G., &
46 MCA Evans, D.S.
61 MCA Fu, H.-H., Hartkopf, W.I., Mason, B.D., McAlister, H.A., Dombrowski, E.G., &
61 MCA Franz, O.G.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
11159+1318 MCA 35 1993 7 250 0.1 5.50 7.30 K3III NO 111551.90+131827.3
11159+1318 MCA 35 2003 8 139 0.1 5.32   K3III NOD 111551.90+131827.3
11159+1318 MCA 35 2018 8 263 0.1 5.50 7.30 K1III+A7V NO 111551.90+131827.3
11159+1318 MCA 35 2019 10 277 0.1 5.50 7.30 K1III+A7V NO 111551.90+131827.3
11159+1318 MCA 35 2020 12 288 0.1 5.50 7.30 K1III+A7V NO 111551.90+131827.3
11159+1318 MCA 35 2021 13 310 0.0 5.50 7.30 K1III+A7V NO 111551.90+131827.3

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