97.80.-d Binary and multiple stars ( 0 Dok. )

• 97.80.Af Astrometric and interferometric binaries ( 0 Dok. )
• 97.80.Di Visual binaries ( 0 Dok. )
• 97.80.Fk Spectroscopic binaries; close binaries ( 0 Dok. )
• 97.80.Gm Cataclysmic binaries (novae, dwarf novae, recurrent novae, and nova-like objects); symbiotic stars (seealso 97.30.Q Novae) ( 0 Dok. )
• 97.80.Hn Eclipsing binaries ( 0 Dok. )
• 97.80.Jp X-ray binaries (see also 98.70.Q X-ray sources and 97.60.G Pulsars) ( 0 Dok. )
• 97.80.Kq Multiple stars ( 0 Dok. )