WDS 04078+6220 DBR 58 Pa,Pb : NOTES
 
 
discov_num notes refcode
ES 2603 SZ Cam
STF 485 The classification is from Chocol (1980 Bull. Astron. Inst. Czech. 31,
CHR 209 321). The discovery of speckle companion CHR 209 Ea,Eb with a period
WSI 20 of some 60 y confirms the third body model advocated by Mayer et al.
HZG 2 (1994 A&A 288, L13) based on the appearance of the spectrum and
HLM 3 variations in the time of light curve minimum (they suggest a third
body period of 50.7 y). Another light curve solution is given by
Harries et al. (1998 MNRAS 295, 386). The B component was also
observed and appeared to be single. Classification of the B component
is from the WDS. Msn1998a
This complex multiple system has had numerous identification errors
due to various difficulties. The diagram of Lewis in his catalog of L__1906b
the Struve pairs, which seemed a good first step, was hampered by the
quadrant error of the pair he designated Ca. This quadrant error was
repeated in the ADS, IDS, and in earlier editions of the WDS. In the
ADS (where this pair is listed as #2984, but note that #2989 is part
of this system, too) the errors multiplied. The pair Holmes AF (WDS
designation HLM 3AF) is apparently the same as STF 485Ac. Inspection
of scanned images of this region of the sky have allowed the
Hertzsprung pairs (HZG 2) whose components are given within
quotation marks in the ADS to be identified. Of the HZG pairs, the
"CD" pairing is the same as STF 484AC and the "CE" pairing is the
same as STF 484AB. The ADS note to the "AJ" pairing of HZG 2 is a
typographical error. The correct position angle is 77 degrees, which
corresponds to the AD (now AO) pair. Below outlines the changes from
the WDS 2001.0 to the current version.
ES 2603Aa ---> ES 2603AB
STF 485Ab ---> STF 485AC
STF 485Ac ---> STF 485AD
STF 485AB ---> STF 485AE
STF 485BE ---> STF 485EF
STF 485 ---> STF 485EG (formerly STF 485B to STF 484A)
STF 484AB ---> STF 484GH
STF 484AC ---> STF 484GI
STF 485Bb ---> STF 485EC
HLM 3AF ---> STF 485AD
STF 485AD ---> STF 485AO
STF 485 ---> STF 485AL (formerly STF 485A to HLM 3A)
HLM 3AB ---> HLM 3LM
HZG 2AC ---> STF 484AI
HZG 2AD ---> STF 484AG
HZG 2AE ---> STF 484AH
HZG 2AG ---> HZG 2AN
HZG 2BC ---> STF 484EI
HZG 2BE ---> STF 484EH
HZG 2CD ---> STF 484GI
HZG 2CE ---> STF 484HI
HZG 2JK ---> HZG 2OP
HZG 2 ---> HZG 2JK
SLV 3 ---> STF 485AF
CHR 209Ba ---> CHR 209Ea,Eb
CHR 209 Ea,Eb: The primary of this pair is the Beta Lyrae-type O9/B0 eclipsing
system SZ Cam, with a period of 2.698d. The Gorda et al. (2007) orbit Grd2007a
is based on changes in the period of SZ Cam to determine P, omega, e, Grd2007b
and T, and speckle measures to derive i, Omega, and a. They derive a
distance of 1125 +/- 135 pc, which exceeds by 30% the 800pc distance
to the open cluster NGC 1502; they conclude that SZ Cam is not a
member of the cluster. The mass of the eclipsing pair (Ea) is 28.5
+/- 0.5 Msun, that of the third body (Eb) 23.4 +/- 2.4 Msun.
Eb is also a close binary.
STF 484 GH: STI 492.
 
 
REFERENCES
 
 
refcode metd author reference
Grd2007a S - Gorda, S.Yu., Balega, Yu.Yu., Pluzhnik, E.A., & Shkhagosheva, Z.U. 2007A&AT...26..145G
Grd2007a +orb A&AT 26, 145, 2007 (all data also in Grd2007b) 2007AstBu..62..352G
Grd2007b orb u Gorda, S.Yu., Balega, Yu.Yu., Pluzhnik, E.A., & Shkhagosheva, Z.U. 2007AstBu..62..352G
Grd2007b +S Astrophys. Bull. 62, 352, 2007
L__1906b Ma - Lewis, T. 1906MmRAS..56....1L
L__1906b +orb MemRAS 56, 1906
Msn1998a Sc j Mason, B.D., Gies, D.R., Hartkopf, W.I., Bagnuolo, Jr., W.G., 1998AJ....115..821M
Msn1998a ten Brummelaar, T.A., & McAlister, H.A.
Msn1998a AJ 115, 821, 1998
 
 
DISCOVERER
 
 
idgroup discov author
1 CHR Center for High Ang. Res. Astronomy (speckle interferometry systems)
3 DBR Debackere, A.
76 ES Espin, T.E.
171 FYM Fay, M.
198 HLM Holmes, E.
199 HZG Hertzsprung, E.
224 STF Struve, F.G.W.
257 WSI Douglass, G.G., Hindsley, R.B., & Worley, C.E.
266 WSI Mason, B.D., Hartkopf, W.I., Holdenried, E.R., Rafferty, T.J., Wycoff, G.L.,
266 WSI Hennessy, G.S., Hall, D.M., Urban, S.E., et al.
269 WSI Mason, B.D., Hartkopf, W.I., Wycoff, G.L., Holdenried, E.R., Platais, I.,
269 WSI Rafferty, T.J., Hall, D.M., Hennessy, G.S., et al.
270 WSI Mason, B.D., Hartkopf, W.I., Urban, S.E., Wycoff, G.L., Pascu, D., Hall, D.M.,
270 WSI Hennessy, G.S., Platais, I., et al.
271 WSI Mason, B.D., Hartkopf, W.I., Wycoff, G.L., Pascu, D., Urban, S.E., Hall, D.M.,
271 WSI Hennessy, G.S., Rafferty, T.J., et al.
298 WSI Mason, B.D., Hartkopf, W.I., Bredthauer, G., Ferguson, E.W., Finch, C.T., Kilian,
298 WSI C.M., Rafferty, T.J., Ragan, T.J. & Wieder, G.D.
308 WSI Mason, B.D., Williams, S.J., Matson, R.A., Josties, J.D., Eakens, P.D., Justice,
308 WSI M., Kilian, C.M. & Warner, R.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
04078+6220 DBR 58 Pa,Pb 2015 1 227 0.9 11.90 12.50 040809.04+622007.1

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