3C 273

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Basic data :
3C 273 -- BL Lac - type object Origin of the objects types : (Ref) Object type as listed in the reference "Ref" (acronym) Object type linked to the acronym according to the original reference () Anterior to 2007, before we can link the objet type to a reference, or given by the CDS team in some particular cases Other object types: Rad (3C,4C,...), X (Ref,2A,...), QSO (Ref,QSO,...), gam (1AGL,1CG,...), * (GSC,HIC,...), Bla (Ref,[DGT2001],...), IR (AKARI,IRAS,...), UV (Balloon,2EUVE,...), G (LEDA,2MASX,...), AGN (Ref,CGRaBS), V* (AAVSO), Sy1 (Ref), BLL (Ref) Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" : ra dec : right ascension and declination (unit and frame defined according to your Output Options) Grey values are increasing the original precision due to the computation of frame transformations (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam) [error ellipse] : coordinates error major axis, minor axis (in mas at epoch defined in your output options), position angle (in degrees North to East of the specified coordinate frame) quality : flag of quality E >= 10" D : 1-10" (and some old data) C : 0.1-1" B : 0.01-0.1" + 2MASS, Tyc A : VLBI, Hipparcos bibcode : bibcode of the coordinates reference ICRS coord. (ep=J2000) : 12 29 06.69512 +02 03 08.6628 (Optical) [ 56.38 38.43 90 ] A 2007A&A...474..653V Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" : ra dec : right ascension and declination (unit and frame defined according to your Output Options) Grey values are increasing the original precision due to the computation of frame transformations (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam) [error ellipse] : coordinates error major axis, minor axis (in mas at epoch defined in your output options), position angle (in degrees North to East of the specified coordinate frame) quality : flag of quality E >= 10" D : 1-10" (and some old data) C : 0.1-1" B : 0.01-0.1" + 2MASS, Tyc A : VLBI, Hipparcos bibcode : bibcode of the coordinates reference FK5 coord. (ep=J2000 eq=2000) : 12 29 06.695 +02 03 08.66 [ 56.38 38.43 90 ] Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" : ra dec : right ascension and declination (unit and frame defined according to your Output Options) Grey values are increasing the original precision due to the computation of frame transformations (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam) [error ellipse] : coordinates error major axis, minor axis (in mas at epoch defined in your output options), position angle (in degrees North to East of the specified coordinate frame) quality : flag of quality E >= 10" D : 1-10" (and some old data) C : 0.1-1" B : 0.01-0.1" + 2MASS, Tyc A : VLBI, Hipparcos bibcode : bibcode of the coordinates reference FK4 coord. (ep=B1950 eq=1950) : 12 26 33.28 +02 19 43.1 [ 322.30 225.17 0 ] Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" : ra dec : right ascension and declination (unit and frame defined according to your Output Options) Grey values are increasing the original precision due to the computation of frame transformations (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam) [error ellipse] : coordinates error major axis, minor axis (in mas at epoch defined in your output options), position angle (in degrees North to East of the specified coordinate frame) quality : flag of quality E >= 10" D : 1-10" (and some old data) C : 0.1-1" B : 0.01-0.1" + 2MASS, Tyc A : VLBI, Hipparcos bibcode : bibcode of the coordinates reference Gal coord. (ep=J2000) : 289.9508 +64.3600 [ 56.38 38.43 90 ] Syntax of proper motions is : "pm-ra pm-dec [error ellipse] quality bibcode" pm-ra : mu-ra*cos(dec) (expressed in the ICRS system in mas/yr) pm-dec : mu-dec (expressed in the ICRS system in mas/yr) [error ellipse] : error major axis and minor axis (in mas), orientation angle (in deg) quality : flag of quality (A=best quality -> E=worst quality, ~ =unknown quality) bibcode : bibcode of the proper motion reference Proper motions mas/yr : -8.90 7.83 [6.40 4.36 0] A 2007A&A...474..653V Syntax of radial velocity (or/and redshift) is : "value [error] (wavelength) quality bibcode" value : radial velocity or/and redshift (Heliocentric frame) according to your Output Options (redshift may be not displayed if the data value is <0 and the database inside value is a radial velocity) [error] : error of the corresponding value displayed before (wavelength) : wavelength range of the measurement : Rad, mm, IR, Opt, UV, Xray, Gam or  '∼'(unknown) quality : flag of quality ( A=best quality -> E=worst quality, ~ =unknown quality) bibcode : bibcode of the value's origin Radial velocity / Redshift / cz : V(km/s) 43751 [20] / z(~) 0.158339 [0.000067] / cz 47468.84 [20.09]    C 1992ApJS...83...29S Syntax of parallax is : 'value quality [error] bibcode' value : parallax value quality : flag of quality (A=best quality -> E=worst quality, ~ =unknown quality) [error] : mean error bibcode : bibcode of the parallax reference Parallaxes (mas): -1.48 [5.90] A 2007A&A...474..653V Syntax of angular size is : "maj-axis min-axis angle (wtype) quality bibcode" maj-axis : major axis size (arc minutes) min-axis : minor axis size (arc minutes) angle : orientation angle (in degrees) (incl) : inclination (in units of 15° from 0 to 7) (wtype) : wavelength class for the origin of the angular size (Rad, mm, IR, Opt, UV, Xray, Gam) quality : flag of quality of the angular size values ( A=best quality -> E=worst quality, ~ =unknown quality) bibcode : bibcode of the angular size reference Angular size (arcmin): 0.170 0.170 2 (IR) C 2006AJ....131.1163S Syntax of fluxes (or magnitudes) is : "filter-name (System) flux-value [error] quality MultVarFlags bibcode" filter-name : U, B, V, R, I, G, J, H, K, u, g, r, i, z (System) : may be AB (default is Vega) flux-value : value of flux or magnitude [error] : error value quality : flag of quality of the flux value ( A=best quality -> E=worst quality, ~ =unknown quality) MultVarFlags : Mult is zero or one char (J) for joined photometry ; Var can be zero or two chars (V[0-4]) bibcode : bibcode of the flux reference Fluxes (11) : B 13.05 [~] D 2010A&A...518A..10V V 12.85 [~] D 2010A&A...518A..10V R 14.11 [~] D 2008ApJS..175...97H J 11.692 [0.023] C 2006AJ....131.1163S H 10.953 [0.023] C 2006AJ....131.1163S K 9.937 [0.02] C 2006AJ....131.1163S u (AB) 13.859 [0.005] C 2009yCat.2294....0A g (AB) 12.990 [0.002] C 2009yCat.2294....0A r (AB) 12.871 [0.002] C 2009yCat.2294....0A i (AB) 12.630 [0.002] C 2009yCat.2294....0A z (AB) 13.242 [0.006] C 2009yCat.2294....0A	SIMBAD with radius arcmin Interactive AladinLite view 2MASS DSS SDSSXMMIRACIRISGALEX VizieR photometry viewer    within radius arcsec The VizieR photometry tool allows for easy visualization of photometry points extracted around the Simbad position from photometry-enabled catalogues in VizieR. The search radius has to be specified by the user. It is currently limited to a maximum of 30 arcsec. It depends mostly on the precision or quality of the coordinates (SIMBAD and VizieR catalogs), the resolution of the images from which the sources were extracted, source extent, and source crowding. Suggestions are: crowded field: 0.5 to 1.5 arcsec, 3 arcsec otherwise; uncertain coordinates (SIMBAD quality E or coordinates without reference): 5 to 30 arsec (risky!).

3C 273	HE 1226+0219	PMN J1229+0203	[BDW2002] q1226+0219
2A 1225+022	H 1226+023	PSCz Q12265+0219	[CGL99] 11
3A 1226+023	HIC 60936	QSO B1226+0219	[CMG2008] 188.75+3.14
1AGL J1228+0142	HIP 60936	QSO J1229+0203	[DGT2001] B1226+023
AKARI-FIS-V1 J1229071+020309	ICRF J122906.6+020308	QSO B1226+023	[DGW65] 56
Balloon 110607001	IERS B1226+023	RBS 1114	[DML87] 295
3C 273B	IGR J12291+0203	RGB J1229.1+0203	[GGR94] 1226+023
3C 273.0	INTREF 500	RORF 1226+023	[GR92] 1226+023
4C 02.32	IRAS F12265+0219	RX J122906+02031	[GW2008] CoNFIG 137
1CG 291+65	IRAS 12265+0219	RX J1229.1+0203	[HB93] 1226+023
2CG 289+64	JVAS B1226+023	1RXS J122906.5+020311	[IN88] 1226+023
CGRaBS J1229+0203	JVAS J1229+0203	SDSS J122906.69+020308.5	[KRL2007b] 118
3CR 273	1Jy 1226+023	SDSS J122906.69+020308.6	[MGL2009] BZQ J1229+0203
CTA 53	1Jy 1226+02	SIM 1226+02.0	[MGL2015] 5BZQ J1229+0203
DA 324	LEDA 41121	SWIFT J1229.1+0202	[POS96] 8
2E 2729	2MASX J12290674+0203083	SWIFT J1229.1+0203	[PUC81] 3C 273 B
2E 1226.5+0219	MRC 1226+023	2U 1224+02	[S77] 207
2EG J1229+0206	MSH 12+0-08	3U 1224+02	[VV2000] J122906.7+020308
3EG J1229+0210	NEWPS5 J1229+0203	4U 1226+02	[VV2003] J122906.7+020308
EGR J1229+0203	NRAO 400	USNO 731	[VV2006] J122906.7+020308
1ES 1226+02.3	NVSS J122906+020305	VSOP J1229+0202	[VV2010] J122906.7+020308
2EUVE J1229+02.0	OHIO N 044	VSOP J1229+0203	[VV96] J122906.7+020308
EUVE J1229+02.0	PBC J1229.1+0202	WB 1226+0219	[VV98] J122906.7+020308
0FGL J1229.1+0202	PG 1226+02	WISE J122906.69+020308.6	[VYP98] 1226+023
1FGL J1229.1+0203	PG 1226+023	WISE J122906.70+020308.6	[WTW94] 1226+023
2FGL J1229.1+0202	PKS 1226+023	WMAP J1229+0202	[WZX98] 12265+0219
3FGL J1229.1+0202	PKS J1229+0203	2XMM J122906.6+020308	[ZEH2003] RX J1229.1+0203 1
GRA B1226+02	PKS 1226+02	2XMMi J122906.6+020308	AAVSO 1224+02
GSC 00282-00202	PLCKERC -857 G289.96+64.35	XSS J12288+0200
1H 1226+022	PLX 2877.01	[BAG2012] 187.2817+02.04932

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References (4984 between 1850 and 2017) Simbad bibliographic survey began in 1950 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system). Follow new references on this object

number of references only bibcodes reference summary number of references by 1st author number of references by year number of references by journal from: to:

Measurements (12 types) :

External archives :

Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Data at NED - NASA/IPAC Extragalactic Database : 3C 273

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