| Herbig-Haro object (HH) | ISM.Herbig-Haro |
| Supernova remnant (SNR) | ISM.SNRemnant |
| Supernova remnant candidate | ISM.SNRemnant;stat.possible |
| Generic cloud | ISM.cloud |
| Part of cloud | ISM.cloud;stat.partOf |
| Cloud of unknown nature | ISM.cloud;stat.unknown |
| High-velocity cloud (HVC) | ISM.cloud.high-velocity |
| Molecular cloud | ISM.cloud.molecular |
| Cometary globule | ISM.cometaryGlobule |
| Star in nebula | ISM.nebula;stars;stat.member |
| Nebula of unknown nature | ISM.nebula;stat.unknown |
| Bright nebula | ISM.nebula.bright |
| Dark nebula | ISM.nebula.dark |
| Galactic nebula | ISM.nebula.galactic |
| Reflection nebula | ISM.nebula.reflection |
| Planetary nebula | ISM.planetaryNebula |
| Possible planetary nebula | ISM.planetaryNebula;stat.possible |
| HI shell | ISM.shell.HI |
| HI (neutral) region (HI) | ISM.region.HI |
| HI (ionized) region (HII) | ISM.region.HII |
| Generic galaxy | galaxies |
| HII galaxy | galaxies;class.HII |
| Elliptical or lenticular galaxy | galaxies;class.elliptical |
| Irregular galaxy | galaxies;class.irregular |
| Spiral galaxy | galaxies;class.spiral |
| Radio galaxy | galaxies;em.radio |
| Gravitationally lensed image of a galaxy | galaxies;process.gravitation.lensing |
| Interacting galaxies | galaxies;process.interaction |
| Galaxy with high redshift | galaxies;process.redshift;stat.high |
| Starburst galaxy | galaxies;process.starburst |
| Star cluster in galaxy | galaxies;stars.cluster;stat.member |
| Part of a galaxy | galaxies;stat.partOf |
| Active galactic nucleus (AGN) | galaxies.AGN |
| BL Lac-type object (BLLac) | galaxies.AGN;class.BLLac |
| Seyfert galaxy (Seyfert) | galaxies.AGN;class.Seyfert |
| Seyfert 1 galaxy (Seyfert1) | galaxies.AGN;class.Seyfert1 |
| Seyfert 2 galaxy (Seyfert2) | galaxies.AGN;class.Seyfert2 |
| Active galactic nucleus candidate | galaxies.AGN;stat.possible |
| Blazar (Blazar) | galaxies.AGN.Blazar |
| LINER-type active galactic nucleus (LINER) | galaxies.AGN.LINER |
| Quasar (QSO) | galaxies.QSO |
| Gravitationally lensed image of a quasar | galaxies.QSO;process.gravitation.lensing |
| Quasar candidate | galaxies.QSO;stat.possible |
| Absorption line system (ALS) | galaxies.absLineSystem |
| Ly alpha absorption line system | galaxies.absLineSystem.Ly-alpha |
| Damped Ly alpha absorption line system | galaxies.absLineSystem.Ly-alpha.damped |
| Metallic absorption line system | galaxies.absLineSystem.metal-lines |
| Lyman limit system (LLS) | galaxies.absLineSystem.Ly-limit |
| Broad absorption line system (BAL) | galaxies.absLineSystem.Broad |
| Active galaxy | galaxies.active |
| Compact group of galaxies | galaxies.compactGroup |
| Cluster of galaxies | galaxies.cluster |
| Galaxy in cluster of galaxies | galaxies.cluster;stat.member |
| Dwarf galaxy | galaxies.dwarf |
| Giant galaxy | galaxies.giant |
| Group of galaxies | galaxies.group |
| Galaxy in group of galaxies | galaxies.group;stat.member |
| Pair of galaxies | galaxies.pair |
| Galaxy in pair of galaxies | galaxies.pair;stat.member |
| Supercluster of galaxies | galaxies.superCluster |
| Generic object in the sky | obj |
| Gravitationally lensed image | obj;process.gravitation.lensing |
| Region defined in the sky | obj.region |
| Multiple, composite object | obj;stat.multiple |
| Object of unknown nature | obj;stat.unknown |
| Void, underdense region of the Universe | obj.void |
| (Micro) lensing event | process.gravitation.micro-lensing |
| Gamma-ray burst (GRB) | process.variation;em.gamma |
| Generic source of radiation (em, gravitational) or of particles | source |
| Far-IR source (lambda >= 30 microns) | source;em.FIR |
| Infrared source (IRS) | source;em.IR |
| Near-IR source (lambda < 10 microns) | source;em.NIR |
| UV-emission source | source;em.UV |
| X-ray source | source;em.X-ray |
| Gamma-ray source | source;em.gamma |
| Radio-source millimetric | source;em.mm |
| Radio-source | source;em.radio |
| Emission object | source;process.emission |
| Gravitational object | source;process.gravitation |
| Blue object | source.blue |
| Extremely red object (ERO) (ERO) | source.extremeRed |
| Maser source | source.maser |
| Star, stars | stars |
| Be star (Be) | stars;class.Be |
| Star with envelope of CH type | stars;class.CH |
| Star with envelope of OH/IR type (OH-IR) | stars;class.OH-IR |
| S star | stars;class.S |
| T Tau-type star (TTau) | stars;class.TTau |
| Wolf-Rayet star (WR) | stars;class.Wolf-Rayet |
| Carbon star | stars;class.carbon |
| Early-type (early spectral type, hot) star | stars;class.earlyType |
| Late-type (late spectral type, cold) star | stars;class.lateType |
| Star of spectral type xx | stars;class.xx |
| Emission-line star | stars;em.line |
| High-velocity star | stars;phys.velocity;stat.high |
| High proper motion star | stars;pos.pm;stat.high |
| Multiple star system | stars;stat.multiple |
| Peculiar star | stars;stat.peculiar |
| Asymptotic Giant Branch star (AGB) | stars.AGB |
| Horizontal Branch star (HB) | stars.HB |
| Young Stellar Object (YSO) | stars.YSO |
| Double (binary) star | stars.binary |
| X-ray binary | stars.binary;em.X-ray |
| Eclipsing binary | stars.binary;process.eclipse |
| Star in double or multiple system | stars.binary;stat.member |
| Eclipsing binary of Algol type (Algol) | stars.binary;process.eclipse;class.Algol |
| Eclipsing binary of beta Lyr type (betaLyr) | stars.binary;process.eclipse;class.betaLyr |
| Eclipsing binary of W UMa type (WUMa) | stars.binary;process.eclipse;class.WUMa |
| Eclipsing binary (2!!) | stars.binary.eclipsing |
| Spectroscopic binary | stars.binary.spectroscopic |
| Low mass X-ray binary (LMXB) | stars.binary.low-mass;em.X-ray |
| High mass X-ray binary (HMXB) | stars.binary.high-mass;em.X-ray |
| Black hole (BH) | stars.blackHole |
| Black hole candidate | stars.blackHole;stat.possible |
| Brown dwarf (low-mass) | stars.brownDwarf |
| Circumstellar matter (CSM) | stars.circumstellar |
| Cluster of stars | stars.cluster |
| Star in cluster of stars | stars.cluster;stat.member |
| Association of stars | stars.cluster.association |
| Star in association of stars | stars.cluster.association;stat.member |
| Globular cluster | stars.cluster.globular |
| Possible globular cluster | stars.cluster.globular;stat.possible |
| Open (galactic) cluster (OCl) | stars.cluster.open |
| Neutron star | stars.neutron |
| Central star of planetary nebula (CSPN) | stars.planetaryNebula |
| Star showing eclipses by its planet | stars.planetarySystem;process.eclipse |
| Sub-stellar object | stars.planetarySystem;stat.member |
| Extra-solar planet | stars.planetarySystem.planet |
| Extra-solar planet candidate | stars.planetrySystem.planet;stat.possible |
| Post-AGB star | stars.post-AGB |
| Pre-main sequence star (PMS) | stars.preMS |
| Pulsar | stars.pulsar |
| Supernova (the object) (SN) | stars.superNova |
| Supernova of type xx(I, II, Ia, etc) (SNxx) | stars.superNova;class.xx |
| Supernova (the explosion of a star) | stars.superNova;process.explosion |
| Symbiotic star | stars.symbiotic |
| Variable star | stars.variable |
| Variable star of BY Dra type (BYDra) | stars.variable;class.BYDra |
| Variable star of FU Ori type (FUOri) | stars.variable;class.FUOri |
| Variable star of Mira Cet type (Mira) | stars.variable;class.MiraCet |
| Variable star of Orion type | stars.variable;class.Orion |
| Variable star of R CrB type (RCrB) | stars.variable;class.RCrB |
| Variable star of RR Lyr type (RRLyr) | stars.variable;class.RRLyr |
| Variable star of RS CVn type (RSCVn) | stars.variable;class.RSCVn |
| Variable star of RV Tau type (RVTau) | stars.variable;class.RVTau |
| Variable star of W Vir type (WVir) | stars.variable;class.WVir |
| Variable star of alpha2 CVn type | stars.variable;class.alf2CVn |
| Variable star of beta Cep type (betaCep) | stars.variable;class.betaCep |
| Variable star of delta Sct type | stars.variable;class.deltaSct |
| Variable star of gamma Dor type (gammaDor) | stars.variable;class.gammaDor |
| Eruptive variable star | stars.variable;process.eruption |
| Pulsating variable star | stars.variable;process.pulsation |
| Rotationally variable star | stars.variable;process.rotation |
| Ellipsoidal variable star | stars.variable;process.rotation.ellipsoidal |
| Flare star | stars.variable;process.variation.flare |
| Semi-regular pulsating star | stars.variable;process.variation.quasi-periodic |
| Star suspected of variability | stars.variable;stat.possible |
| Cataclysmic variable star (CV) | stars.variable.cataclysmic |
| Cataclysmic var. DQ Her type (DQHer) | star.variable.cataclysmic;class.DQHer |
| Catalcysmic var. of AM Her type (AMHer) | star.variable.cataclysmic;class.AMHer |
| Cepheid variable star | stars.variable.cepheid |
| Classical Cepheid (delta Cep type) (deltaCep) | stars.variable.cepheid;class.deltaCep |
| Dwarf nova | stars.variable.dwarfNova |
| Variable star of irregular type | stars.variable.irregular |
| Nova (nova) | stars.variable.nova |
| Nova-like star | star.variable.nova-like |
| White dwarf (WD) | stars.whiteDwarf |
| Pulsating white dwarf | stars.whiteDwarf;process.pulsation |