(Last classification version : 25-Mar-2010)

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

                                                                                                                      2010-05-14于京



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