WDS 18455+0530 FIN 332 Ba,Bb : NOTES
 
 
discov_num notes refcode
STF2375 This remarkable quadruple system is comprised of two close (0".14)
pairs of similar position angle, discovered by Finsen with his Fin1953c
eyepiece interferometer. Our 1982 observations (McAlister et al. McA1987b
1987) were made at lower magnification and included all four stars in
the field. The resulting overlapping autocorrelation peaks precluded
measurement of the Aab or Bab pairs directly, but did permit measures
of the AB; Aa,Bb; and Ab,Ba configurations. In later observations
made at higher magnification we observed the A and B components
separately, enabling measurement of Aa,Ab and Ba,Bb but not AB.
Listed in the first speckle catalogue as STF 2375 AB,CD. McA1984b
FIN 332 Aa,Ab: Listed in the first speckle catalogue as Fin 332 AB. McA1984b
FIN 332 Ba,Bb: Listed in the first speckle catalogue as Fin 332 CD. McA1984b
 
 
REFERENCES
 
 
refcode metd author reference
Fin1953c J - Finsen, W.S. 1953MNSSA..12...86F
Fin1953c MNASSA 12, 86, 1953
McA1984b Sc j McAlister, H.A. & Hartkopf, W.I. ...................
McA1984b Catalog of Interferometric Measurements of Binary Stars, CHARA Contrib. #1, 1984
McA1984b (previously unpublished KPNO 2.1m and 3.8m data)
McA1987b Sc j McAlister, H.A., Hartkopf, W.I., Hutter, D.J., & Franz, O.G. 1987AJ.....93..688M
McA1987b AJ 93, 688, 1987
Tok2020k orb - Tokovinin, A. 2020AstL...46..612T
Tok2020k Ast. Lett. 46, 612, 2020
 
 
DISCOVERER
 
 
idgroup discov author
1 STF Struve, F.G.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18455+0530 FIN 332 Ba,Bb 1997 43 130 0.1 7.19 7.95 NO 184528.36+053000.4
18455+0530 FIN 332 Ba,Bb 2008 44 42 0.0 7.19 7.95 NO 184528.36+053000.4
18455+0530 FIN 332 Ba,Bb 2015 55 337 0.1 7.19 7.95 A1V+... NO 184528.36+053000.4
18455+0530 FIN 332 Ba,Bb 2018 56 330 0.1 7.19 7.95 A1V+... NO 184528.36+053000.4
18455+0530 FIN 332 Ba,Bb 2019 57 328 0.1 7.19 7.95 A1V+... NO 184528.36+053000.4
18455+0530 FIN 332 Ba,Bb 2020 58 326 0.1 7.48 7.48 A1V+... NO 184528.36+053000.4
18455+0530 FIN 332 Ba,Bb 2021 58 324 0.1 7.48 7.48 A1V+... NO 184528.36+053000.4

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