WDS 02543+5246 LAB 1 Aa,Ab : NOTES
 
 
discov_num notes refcode
LAB 1 Aa,Ab: tau Per = 18 Per. Spectrum composite; G4III+A4V. A is a
long-period spectroscopic binary, resolved by speckle interferometry. Lab1974
Speckle observations have resolved the pair and invalidate an
astrometric solution by Kamper (1969). Kam1969a
van de Kamp & Andersen orbit rejected from Fourth Orbit Catalog Kam1969a
("amplitude below noise level") Wor1983
Time of 1989 mideclipse determined as JD = 2447542.31+/-0.01d. DSH1991
Eclipse duration is 2.09d. Inclination of orbit is 88.74deg.
Time of 1989 mideclipse determined as JD = 2447542.34d. Their model REG1992
results give 16 \rsun, 2.4 \msun, Sp G8IIIa and Teff = 5160+/-150 for
the primary and 2.2 \rsun, 1.8 \msun, Sp A3/4V and Teff = 8970+/-150
for the secondary. The mass ratio is 1.1+/-0.2.
Time of 1989 mideclipse determined as JD = 2447542.302/-0.007d. Smk1990
Eclipse duration is 1.936+/-0.029d. P = 1515.869+/-0.059d.
Time of 1984 mideclipse determined as JD = 2446026.48+/-0.05d. XXX1986
Eclipse duration is 2.3-3.1d.
Zeta Aurigae-type binary.
The elements P, T, e, and longitude of periastron for the McAlister McA1981c
(1981) orbit are from the orbit by Colacevich (1941). Cla1941
See Baize & Petit (1989) catalog of doubles with variable component. Baz1989d
Hipparcos astrometric solution adopted some elements from the orbit of HIP1997d
Demircan & Selam (1992). Dmr1992
The 52" distant, visual double BC may be physical.
 
 
REFERENCES
 
 
refcode metd author reference
Baz1989d - Baize, P. & Petit, M. 1989A&AS...77..497B
Baz1989d A&AS 77, 497, 1989
Cla1941 - Colacevich, A. 1941PUFir..59.....A
Cla1941 Oss. e Mem. Arcetri, No. 59, 1941
Dmr1992 - Demircan, O. & Selam, S.O. 1992A&A...259..577D
Dmr1992 A&A 259, 577, 1992
Doc2014f orb - Docobo, J.A. & Campo, P. 2014IAUDS.184....1D
Doc2014f Inf. Circ. 184, 1, 2014
DSH1991 Z - Hall, D.S., Barksdale, W.S., Curott, D.R., Diethelm-Sutter, R., Ells, J., 1991AJ....101.1821H
DSH1991 +not Frey, G., Houchen, M.B., Krisciumas, K., Leiker, P.S., Lines, H.C., Lines, R.D.,
DSH1991 Miles, R., Milton, R.E., Ohshima, O., Powell, H.D., Pasour, J.L., Schroder, K.-P.,
DSH1991 Slauson, D.M., Smith, D.P., Snyder, L.F. & Williams, D.B.
DSH1991 AJ 101, 1821, 1991
HIP1997d orb - Hipparcos 1997yCat.1239....0E
HIP1997d Hipparcos Catalog, ESA SP-1200, 1997
HIP1997d (DMSA/O Orbital Solutions)
Kam1969a orb - van de Kamp, P. & Andersen, S.E. 1969AJ.....74..235V
Kam1969a AJ 74, 235, 1969
Lab1974 S j Labeyrie, A., Bonneau, D., Stachnik, R.V., & Gezari, D.Y. 1974ApJ...194L.147L
Lab1974 +orb ApJ 194, L147, 1974
Lab1974 (data from Hale 5m, KPNO 3.8m, 2.1m. Aperture listed as mean value of 3.6m unless
Lab1974 specifically given in paper)
McA1981c orb - McAlister, H.A. 1981AJ.....86.1397M
McA1981c AJ 86, 1397, 1981
REG1992 Z+ - Griffin, R.E.M., Schroder, K.-P., Misch, A. & Griffin, R.F. 1992A&A...254..289G
REG1992 +not A&A 254, 289, 1992
Smk1990 Z+ - Schmidtke, P.C. & Hopkins, J.L. 1990Ap&SS.164..323S
Smk1990 +Not Ap&SS 164, 323, 1990
Wor1983 - Worley, C.E. & Heintz, W.D. 1983PUSNO..24g...1W
Wor1983 Pub. USNO 24, Pt. 7, 1983 (Fourth Orbit Catalog)
XXX1986 Z u Ake, T.B., Fekel, F.C., Hall, D.S., Barksdale, W.S., Landis, H.J., Fried, R.E., 1986IBVS.2847....1A
XXX1986 Louth, H. & Hopkins, J.L.
XXX1986 IBVS #2847, 1, 1986
 
 
DISCOVERER
 
 
idgroup discov author
1 BU Burnham, S.W. (BU 1 - 81)
179 EDG Edgecomb, D.W. (from additional DD list)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
02543+5246 LAB 1 Aa,Ab 1994 12 276 0.1 3.95 7.50 G4III+A4V NOD 025415.46+524545.0
02543+5246 LAB 1 Aa,Ab 2010 13 277 0.1 4.20 5.90 G8III+A7V NO 025415.46+524545.0

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