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Intersection Union
Classified Extragalactic
Galaxies (G) Galaxy Pairs (GPair) Galaxy Triples (GTrpl) Galaxy Groups (GGroup) Galaxy Clusters (GClstr) QSOs (QSO) QSO Groups (QGroup) Gravitational Lenses (G_Lens, Q_Lens) Absorption Line Systems (AbLS) Emission Line Sources (EmLS)
Components of Galaxies
Supernovae (SN) HII Regions (HII) Planetary Nebulae (PN) Supernova Remnants (SNR) Stellar Associations (*Ass) Star Clusters (*Cl) Molecular Clouds (MCld) Novae (Nova) Variable Stars (V*) Wolf-Rayet Stars (WR*) Carbon Stars (C*) Parts of Galaxies (PofG) Others (Other) Stars (*) Blue Stars (Blue*) Red Stars (Red*) Pulsars (Psr) Reflection Nebulae (RfN) Double Stars (**) Emission Objects (EmObj) Emission Nebulae (Neb) White Dwarfs (WD)
Unclassified Objects (Source Types)
Radio Sources (RadioS) Submillimeter Sources (SmmS) Infrared Sources (IrS) Visual Sources (VisS) UV Sources (UvS) UV Excess Sources (UvES) X-ray Sources (XrayS) Gamma-ray Sources (GammaS)