Columbia subject headings:
Astronomical photometry--Catalogs.
Double stars--Catalogs.
Double stars--Measurement--Catalogs.
Double stars--Orbits--Catalogs.
Double stars--Spectra--Catalogs.
Harvard subject headings:
Astronomical photometry--Catalogs.
Double stars--Catalogs.
Double stars--Measurement--Catalogs.
Double stars--Orbits--Catalogs.
Double stars--Spectra--Catalogs.
Princeton subject headings:
Astronomical photometry--Catalogs.
Catalogs.
Double stars--Catalogs.
Double stars--Measurement--Catalogs.
Double stars--Orbits--Catalogs.
Double stars--Spectra--Catalogs.