Binary labels used on the graphics and the data pages on this website, and their references
(based on the Washington Double Star Catalogue)
A: R.G. Aitken
AC: Alvan Clark
AGC: A.G. Clark
Alb: Albany Observatory
B: Willem H. van den Bos
Bar: E.E. Barnard
Brs: Brisbane Observatory
BU: S. W. Burnham
CapO: Cape Observatory, SA
CoO: Cordoba Observatory
Cope: R. Copeland
Dawes: W.R. Dawes
Dju: P. Djurkovic
Fle: J. Fleckenstein
Gale: W. F. Gale
Gnt: Grant
Grb: S. Groombridge
h: John Herschel
H I-VI: William Herschel
H N: William Herschel, 1921 catalogue
Hu: W.J. Hussey
Hub: S. Hubrig et. al.
I: R.T.A. Innes
Jc: W. S. Jacob
Krü: E.C. Krüger
Kui: Gerard P. Kuiper
Lcl: N.L. Lacaille
Ptr: M.G. Petr et al
Pz: G. Piazzi
R: H. C. Russell
Riz: A.C. Rizzuto
Rmk: C.L.C. Rümker
Rst: R.A. Rossiter
S: James South
See: T. J. J. See
Sh: James South and John Herschel
Shy: E.J. Shaya
Slr: R.P. Sellors
Smr: J.S. Schlimmer
Wal: A. Wallenquist
Δ: J. Dunlop
Σ: F. G. W. Struve
Σ: I, II: FGW Struve appendix
OΣ: Otto Struve
OΣΣ: Otto Struve appendix
Φ: W. S. Finsen
Last updated 5 September 2014
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