classified Planetary_Nebulae Planetary_Nebulae Planetary_Nebulae PN A planetary nebula is a nebula surrounding a stellar remnant (white dwarf) Class G in Morgan Keeman's spectral classification QSOs QSO QSOs QSO SCG 3 SuperClG GroupG GrG Associations Associations Assoc* Associations Geometry or morphology of astronomical objects (including non-astronomical object components) Class A in Morgan Keeman's spectral classification Unknown Object of Unknown nature ? mm Radio(mm) Cloud Cloud of unknown nature Cld mainly spectral line properties XB XB* Pu* PulsV* Pulsating Variable Star mR Radio(m) smm Radio(sub-mm) Neb Nebulae Nebulae Neb Open_clusters OpCl Open_clusters OpC Radio Rad Globular_Clusters GlCl Globular_Clusters Globular_Clusters Class B in Morgan Keeman's spectral classification Binaries:eclipsing Binaries:eclipsing Binaries:eclipsing EB* X X Xrays HII_regions HII HII_regions HII (inonized) region HII Phenomenom or associated process A composite object contains at least two distinct individual astronomical objects multiple_object mul Galaxy in Cluster of Galaxies GiC GinCl Concept which may or may not de deleted from the ontology RfNeb RNe EB*betLyr bL* DQ* Cataclysmic Variable Star DQ Her type DQHer Binaries:cataclysmic CataclyV* CV* Binaries:cataclysmic CGG Compact_Gr_G HI (neutral) region HI HI Measured observational parameters/properties GiG GinGroup Clusters_of_galaxies ClG ClG Clusters_of_galaxies 3 Stars:white_dwarf Stars:white_dwarf A white dwarf or a stellar remnant WD* Stars:white_dwarf UV UV Cataclysmic Variable Star AM Her type AMHer AM* rG RadioG *iN *inNeb Multiple_Stars Multiple_Stars ** Double or multiple star A system of two or more distinct stars Novae Nova Novae Novae HXB HMXB GinPair GiP LXB LMXB Wavelength < 10 microns *i* *in** A star that is part of a double star Binaries:spectroscopic Binaries:spectroscopic Binaries:spectroscopic SB Class M in Morgan Keeman's spectral classification cm Radio(cm) Neb Nebulae Generic concept for various types of nebula Process implying an observed variability Stars:variable V* Stars:variable Stars:variable IR IR EB*WUMa WU* IR<10µ NIR Wavelength > 30 microns _Test_Astrobject Any astronomical object YSOs YSOs Stars A stellar object: proto-star, star in the main sequence, evolved star or stellar remnant Stars Star * Cl* 3 Cl* Al* EB*Algol DNe DkNeb Galaxies Galaxy Galaxies Galaxies PairG 2 PaG BrNeb BNe gamma gam Lensed quasar MolCld MoC *iA *inAssoc Class O in Morgan Keeman's spectral classification Class F in Morgan Keeman's spectral classification DwarfNova DN* Double or multiple star ** A system of two stars Any class in Morgan Keeman's spectral classification *iC An individual star located in a star cluster *inCl Set of ranges in the electromagnetic spectrum Class K in Morgan Keeman's spectral classification SNR SNR Object which features a variability Nova-like NL* IR>30µ FIR Indicates that an astronomical object is the location of a Process/has an attached process Indicates that an astronomical object has a related (observational) measurement Indicates that an astronomical object has a related (observational) measurement which value is considered as HIGH Indicates that an astronomical object has a related (observational) measurement which value is considered as LOW Vizier keyword Standard name in Simbad's object classification Short code in Simbad's object classification