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The Object Type in Simbad is defined as a hierarchical classification, which emphasizes the physical nature of the object rather than a peculiar emission in some region of the electromagnetic spectrum or the location in peculiar clusters or external galaxies. Therefore objects are classified as peculiar emitters (Radio, IR, Red, Blue, UV, X or gamma) only if nothing more about the nature of the object is known, i.e. it cannot be decided whether the object is a star, a multiple system, a nebula or a galaxy.
Each class has normally a standard designation, a condensed one (used in tables) and an extended explanation.
Numeric | Standard name | Cond. | Extended explanation | |
00.00.00.00 | Unknown | ? | Object of unknown nature | |
01.00.00.00 | Radio | Rad | Radio-source | |
01.02.00.00 | · Radio(m) | mR | metric Radio-source | |
01.04.00.00 | · Radio(cm) | cm | centimetric Radio-source | |
01.06.00.00 | · Radio(mm) | mm | millimetric Radio-source | |
01.08.00.00 | · Radio(sub-mm) | smm | sub-millimetric source | |
01.11.00.00 | · HI | HI | HI (21cm) source | |
01.12.00.00 | · radioBurst | rB | radio Burst | |
01.14.00.00 | · Maser | Mas | Maser | |
02.00.00.00 | IR | IR | Infra-Red source | |
02.02.00.00 | · IR>30um | FIR | Far-IR source (λ >= 30 µm) | |
02.04.00.00 | · IR<10um | NIR | Near-IR source (λ < 10 µm) | |
03.00.00.00 | Red | red | Very red source | |
03.03.00.00 | · RedExtreme | ERO | Extremely Red Object | |
04.00.00.00 | Blue | blu | Blue object | |
05.00.00.00 | UV | UV | UV-emission source | |
06.00.00.00 | X | X | X-ray source | |
06.02.00.00 | · ULX? | UX? | Ultra-luminous X-ray candidate | |
06.10.00.00 | · ULX | ULX | Ultra-luminous X-ray source | |
07.00.00.00 | gamma | gam | gamma-ray source | |
07.03.00.00 | · gammaBurst | gB | gamma-ray Burst | |
08.00.00.00 | Inexistant | ?!? | Inexistent objects | |
08.03.00.00 | · Error | err | Not an object (artefact) | |
09.00.00.00 | Gravitation | grv | Gravitational Source | |
09.03.00.00 | · LensingEv | Lev | (Micro)Lensing Event | |
09.07.00.00 | · Candidate_Lens | Le? | Possible gravitational lens | |
09.08.00.00 | · Possible_lensImage | LI? | Possible gravitationally lensed image | |
09.09.00.00 | · GravLens | gLe | Gravitational Lens | |
10.00.00.00 | Candidates | ..? | Candidate objects | |
10.02.00.00 | · Possible_SClG | SC? | Possible Supercluster of Galaxies | |
10.03.00.00 | · Possible_ClG | Cl? | Possible Cluster of Galaxies | |
10.04.00.00 | · Possible_GrG | Gr? | Possible Group of Galaxies | |
10.11.00.00 | · Candidate_** | **? | Interacting Binary Candidate | |
10.11.01.00 | · · Candidate_EB* | EB? | Eclipsing Binary Candidate | |
10.11.11.00 | · · Candidate_CV* | CV? | Cataclysmic Binary Candidate | |
10.11.12.00 | · · Candidate_XB* | XB? | X-ray binary Candidate | |
10.11.12.02 | · · · Candidate_LMXB | LX? | Low-Mass X-ray binary Candidate | |
10.11.12.03 | · · · Candidate_HMXB | HX? | High-Mass X-ray binary Candidate | |
10.12.00.00 | · Candidate_Pec* | Pec? | Possible Peculiar Star | |
10.12.01.00 | · · Candidate_YSO | Y*? | Young Stellar Object Candidate | |
10.12.02.00 | · · Candidate_pMS* | pr? | Pre-main sequence Star Candidate | |
10.12.02.03 | · · · Candidate_TTau* | TT? | T Tau star Candidate | |
10.12.03.00 | · · Candidate_C* | C*? | Possible Carbon Star | |
10.12.04.00 | · · Candidate_S* | S*? | Possible S Star | |
10.12.05.00 | · · Candidate_OH | OH? | Possible Star with envelope of OH/IR type | |
10.12.06.00 | · · Candidate_CH | CH? | Possible Star with envelope of CH type | |
10.12.07.00 | · · Candidate_WR* | WR? | Possible Wolf-Rayet Star | |
10.12.08.00 | · · Candidate_Be* | Be? | Possible Be Star | |
10.12.11.00 | · · Candidate_HB* | HB? | Possible Horizontal Branch Star | |
10.12.13.00 | · · Candidate_RSG* | sg? | Possible Red Supergiant star | |
10.12.14.00 | · · Candidate_AGB* | AB? | Possible Asymptotic Giant Branch Star | |
10.12.15.00 | · · Candidate_post-AGB* | pA? | Post-AGB Star Candidate | |
10.12.18.00 | · · Candidate_WD* | WD? | White Dwarf Candidate | |
10.12.20.00 | · · Candidate_NS | N*? | Neutron Star Candidate | |
10.12.22.00 | · · Candidate_BH | BH? | Black Hole Candidate | |
10.12.24.00 | · · Candidate_low-mass* | LM? | Low-mass star candidate | |
10.12.26.00 | · · Candidate_brownD* | BD? | Brown Dwarf Candidate | |
12.00.00.00 | multiple_object | mul | Composite object | |
12.01.00.00 | · Region | reg | Region defined in the sky | |
12.01.05.00 | · · Void | vid | Underdense region of the Universe | |
12.02.00.00 | · SuperClG | SCG | Supercluster of Galaxies | |
12.03.00.00 | · ClG | ClG | Cluster of Galaxies | |
12.04.00.00 | · GroupG | GrG | Group of Galaxies | |
12.04.05.00 | · · Compact_Gr_G | CGG | Compact Group of Galaxies | |
12.05.00.00 | · PairG | PaG | Pair of Galaxies | |
12.05.05.00 | · · IG | IG | Interacting Galaxies | |
12.10.00.00 | · GlCl? | Gl? | Possible Globular Cluster | |
12.11.00.00 | · Cl* | Cl* | Cluster of Stars | |
12.11.01.00 | · · GlCl | GlC | Globular Cluster | |
12.11.02.00 | · · OpCl | OpC | Open (galactic) Cluster | |
12.12.00.00 | · Assoc* | As* | Association of Stars | |
12.13.00.00 | · ** | ** | Double or multiple star | |
12.13.01.00 | · · EB* | EB* | Eclipsing binary | |
12.13.01.01 | · · · EB*Algol | Al* | Eclipsing binary of Algol type | |
12.13.01.02 | · · · EB*betLyr | bL* | Eclipsing binary of beta Lyr type | |
12.13.01.03 | · · · EB*WUMa | WU* | Eclipsing binary of W UMa type | |
12.13.01.08 | · · · EB*Planet | EP* | Star showing eclipses by its planet | |
12.13.02.00 | · · SB | SB* | Spectroscopic binary | |
12.13.11.00 | · · CataclyV* | CV* | Cataclysmic Variable Star | |
12.13.11.02 | · · · DQHer | DQ* | Cataclysmic Var. DQ Her type | |
12.13.11.03 | · · · AMHer | AM* | Cataclysmic Var. AM Her type | |
12.13.11.05 | · · · Nova-like | NL* | Nova-like Star | |
12.13.11.06 | · · · Nova | No* | Nova | |
12.13.11.07 | · · · DwarfNova | DN* | Dwarf Nova | |
12.13.12.00 | · · XB | XB* | X-ray Binary | |
12.13.12.02 | · · · LMXB | LXB | Low Mass X-ray Binary | |
12.13.12.03 | · · · HMXB | HXB | High Mass X-ray Binary | |
13.00.00.00 | ISM | ISM | Insterstellar matter | |
13.01.00.00 | · PartofCloud | PoC | Part of Cloud | |
13.02.00.00 | · PN? | PN? | Possible Planetary Nebula | |
13.03.00.00 | · ComGlob | CGb | Cometary Globule | |
13.06.00.00 | · EmObj | EmO | Emission Object | |
13.08.00.00 | · Cloud | Cld | Cloud | |
13.08.03.00 | · · GalNeb | GNe | Galactic Nebula | |
13.08.04.00 | · · BrNeb | BNe | Bright Nebula | |
13.08.06.00 | · · DkNeb | DNe | Dark Cloud (nebula) | |
13.08.07.00 | · · RfNeb | RNe | Reflection Nebula | |
13.08.12.00 | · · MolCld | MoC | Molecular Cloud | |
13.08.12.03 | · · · Globule | glb | Globule (low-mass dark cloud) | |
13.08.12.06 | · · · denseCore | cor | Dense core inside a molecular cloud | |
13.08.13.00 | · · HVCld | HVC | High-velocity Cloud | |
13.09.00.00 | · HII | HII | HII (ionized) region | |
13.10.00.00 | · PN | PN | Planetary Nebula | |
13.11.00.00 | · HIshell | sh | HI shell | |
13.12.00.00 | · SNR? | SR? | SuperNova Remnant Candidate | |
13.13.00.00 | · SNR | SNR | SuperNova Remnant | |
13.14.00.00 | · Circumstellar | cir | CircumStellar matter | |
13.14.01.00 | · · outflow? | of? | Outflow candidate | |
13.14.15.00 | · · Outflow | out | Outflow | |
13.14.16.00 | · · HH | HH | Herbig-Haro Object | |
14.00.00.00 | Star | * | Star | |
14.01.00.00 | · *inCl | *iC | Star in Cluster | |
14.02.00.00 | · *inNeb | *iN | Star in Nebula | |
14.03.00.00 | · *inAssoc | *iA | Star in Association | |
14.04.00.00 | · *in** | *i* | Star in double system | |
14.05.00.00 | · V*? | V*? | Star suspected of Variability | |
14.06.00.00 | · Pec* | Pe* | Peculiar Star | |
14.06.01.00 | · · HB* | HB* | Horizontal Branch Star | |
14.06.02.00 | · · YSO | Y*O | Young Stellar Object | |
14.06.05.00 | · · Em* | Em* | Emission-line Star | |
14.06.05.03 | · · · Be* | Be* | Be Star | |
14.06.10.00 | · · RGB* | RG* | Red Giant Branch star | |
14.06.12.00 | · · AGB* | AB* | Asymptotic Giant Branch Star (He-burning) | |
14.06.12.03 | · · · C* | C* | Carbon Star | |
14.06.12.06 | · · · S* | S* | S Star | |
14.06.13.00 | · · RSG* | sg* | Red supergiant star | |
14.06.15.00 | · · post-AGB* | pA* | Post-AGB Star (proto-PN) | |
14.06.16.00 | · · WD* | WD* | White Dwarf | |
14.06.16.01 | · · · pulsWD* | ZZ* | Pulsating White Dwarf | |
14.06.17.00 | · · low-mass* | LM* | Low-mass star (M<1solMass) | |
14.06.18.00 | · · brownD* | BD* | Brown Dwarf (M<0.08solMass) | |
14.06.23.00 | · · OH/IR | OH* | Star with envelope of OH/IR type | |
14.06.24.00 | · · CH | CH* | Star with envelope of CH type | |
14.06.25.00 | · · pMS* | pr* | Pre-main sequence Star | |
14.06.25.03 | · · · TTau* | TT* | T Tau-type Star | |
14.06.30.00 | · · WR* | WR* | Wolf-Rayet Star | |
14.07.00.00 | · PM* | PM* | High proper-motion Star | |
14.08.00.00 | · HV* | HV* | High-velocity Star | |
14.09.00.00 | · V* | V* | Variable Star | |
14.09.01.00 | · · Irregular_V* | Ir* | Variable Star of irregular type | |
14.09.01.01 | · · · Orion_V* | Or* | Variable Star of Orion Type | |
14.09.01.02 | · · · Rapid_Irreg_V* | RI* | Variable Star with rapid variations | |
14.09.03.00 | · · Eruptive* | Er* | Eruptive variable Star | |
14.09.03.01 | · · · Flare* | Fl* | Flare Star | |
14.09.03.02 | · · · FUOr | FU* | Variable Star of FU Ori type | |
14.09.03.04 | · · · Erupt*RCrB | RC* | Variable Star of R CrB type | |
14.09.04.00 | · · RotV* | Ro* | Rotationally variable Star | |
14.09.04.01 | · · · RotV*alf2CVn | a2* | Variable Star of alpha2 CVn type | |
14.09.04.02 | · · · RotV*Ell | El* | Ellipsoidal variable Star | |
14.09.04.03 | · · · Pulsar | Psr | Pulsar | |
14.09.04.04 | · · · BYDra | BY* | Variable of BY Dra type | |
14.09.04.05 | · · · RSCVn | RS* | Variable of RS CVn type | |
14.09.05.00 | · · PulsV* | Pu* | Pulsating variable Star | |
14.09.05.02 | · · · RRLyr | RR* | Variable Star of RR Lyr type | |
14.09.05.03 | · · · Cepheid | Ce* | Cepheid variable Star | |
14.09.05.05 | · · · PulsV*delSct | dS* | Variable Star of delta Sct type | |
14.09.05.06 | · · · PulsV*RVTau | RV* | Variable Star of RV Tau type | |
14.09.05.07 | · · · PulsV*WVir | WV* | Variable Star of W Vir type | |
14.09.05.08 | · · · PulsV*bCep | bC* | Variable Star of beta Cep type | |
14.09.05.09 | · · · deltaCep | cC* | Classical Cepheid (delta Cep type) | |
14.09.05.10 | · · · gammaDor | gD* | Variable Star of gamma Dor type | |
14.09.06.00 | · · LPV* | LP* | Long-period variable star | |
14.09.06.01 | · · · Mira | Mi* | Variable Star of Mira Cet type | |
14.09.06.04 | · · · semi-regV* | sr* | Semi-regular pulsating Star | |
14.09.08.00 | · · SN | SN* | SuperNova | |
14.09.09.00 | · · Symbiotic* | Sy* | Symbiotic Star | |
14.14.00.00 | · Sub-stellar | su* | Sub-stellar object | |
14.14.02.00 | · · Planet? | Pl? | Extra-solar Planet Candidate | |
15.00.00.00 | Galaxy | G | Galaxy | |
15.01.00.00 | · PartofG | PoG | Part of a Galaxy | |
15.02.00.00 | · GinCl | GiC | Galaxy in Cluster of Galaxies | |
15.02.02.00 | · · BClG | BiC | Brightest galaxy in a Cluster (BCG) | |
15.03.00.00 | · GinGroup | GiG | Galaxy in Group of Galaxies | |
15.04.00.00 | · GinPair | GiP | Galaxy in Pair of Galaxies | |
15.05.00.00 | · High_z_G | HzG | Galaxy with high redshift | |
15.06.00.00 | · AbsLineSystem | ALS | Absorption Line system | |
15.06.01.00 | · · Ly-alpha_ALS | LyA | Ly alpha Absorption Line system | |
15.06.02.00 | · · DLy-alpha_ALS | DLA | Damped Ly-alpha Absorption Line system | |
15.06.03.00 | · · metal_ALS | mAL | metallic Absorption Line system | |
15.06.05.00 | · · Ly-limit_ALS | LLS | Lyman limit system | |
15.06.08.00 | · · Broad_ALS | BAL | Broad Absorption Line system | |
15.07.00.00 | · RadioG | rG | Radio Galaxy | |
15.08.00.00 | · HII_G | H2G | HII Galaxy | |
15.09.00.00 | · LSB_G | LSB | Low Surface Brightness Galaxy | |
15.10.00.00 | · AGN_Candidate | AG? | Possible Active Galaxy Nucleus | |
15.10.07.00 | · · QSO_Candidate | Q? | Possible Quasar | |
15.10.11.00 | · · Blazar_Candidate | Bz? | Possible Blazar | |
15.10.17.00 | · · BLLac_Candidate | BL? | Possible BL Lac | |
15.11.00.00 | · EmG | EmG | Emission-line galaxy | |
15.12.00.00 | · StarburstG | SBG | Starburst Galaxy | |
15.13.00.00 | · BlueCompG | bCG | Blue compact Galaxy | |
15.14.00.00 | · LensedImage | LeI | Gravitationally Lensed Image | |
15.14.01.00 | · · LensedG | LeG | Gravitationally Lensed Image of a Galaxy | |
15.14.07.00 | · · LensedQ | LeQ | Gravitationally Lensed Image of a Quasar | |
15.15.00.00 | · AGN | AGN | Active Galaxy Nucleus | |
15.15.01.00 | · · LINER | LIN | LINER-type Active Galaxy Nucleus | |
15.15.02.00 | · · Seyfert | SyG | Seyfert Galaxy | |
15.15.02.01 | · · · Seyfert_1 | Sy1 | Seyfert 1 Galaxy | |
15.15.02.02 | · · · Seyfert_2 | Sy2 | Seyfert 2 Galaxy | |
15.15.03.00 | · · Blazar | Bla | Blazar | |
15.15.03.01 | · · · BLLac | BLL | BL Lac - type object | |
15.15.03.02 | · · · OVV | OVV | Optically Violently Variable object | |
15.15.04.00 | · · QSO | QSO | Quasar |
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