3C 275.1

Basic data :
ICRF J124357.6+162253 -- Seyfert 1 Galaxy 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 (2014ApJS,ICRF,...), QSO (2010A&A,LBQS,...), X (2E,RX,...), MIR (WISEA,WISE), Sy1 (2022ApJS), G (LEDA), * (Gaia), NIR (2MASS), IR (2MASSI), Opt (SDSS) 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] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue), position angle (in degrees North celestial pole to East) 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 43 57.6491122968 +16 22 53.395049244 (Optical) [ 0.1179 0.0672 90 ] A 2020yCat.1350....0G 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] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue), position angle (in degrees North celestial pole to East) 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 41 27.5611073020 +16 39 18.177799611 [ 0.1179 0.0672 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] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue), position angle (in degrees North celestial pole to East) 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) : 293.3930643830737 +79.1145149118605 [ 0.1179 0.0672 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 : 0.094 -0.115 [0.154 0.155 90] A 2020yCat.1350....0G 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) 124411 [12] / z(spectroscopic) 0.55523 [0.00004] / cz 166453.8 [12.0]    (Opt) C 2012ApJS..203...21A 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 19.23 [~] D 2010A&A...518A..10V V 19.00 [~] D 2010A&A...518A..10V G 17.917152 [0.009465] C 2020yCat.1350....0G J 16.780 [0.127] C 2010AJ....139.2360S H 16.061 [0.168] C 2010AJ....139.2360S K 15.258 [0.124] C 2010AJ....139.2360S u (AB) 18.5316 [0.0190] C 2020ApJS..250....8L g (AB) 18.1465 [0.0311] C 2020ApJS..250....8L r (AB) 18.3090 [0.0155] C 2020ApJS..250....8L i (AB) 18.1481 [0.0233] C 2020ApJS..250....8L z (AB) 18.1691 [0.0243] C 2020ApJS..250....8L	SIMBAD within arcmin ', {sourceSize:12, color:'#30a090'})); aladin.on('objectClicked', function(object) { var objName=object.data.MAIN_ID; aladin.showPopup(object.ra,object.dec,'',''+ objName+''); });" title="Show Simbad objects"> Overlay points in this preview 2MASS DSS SDSSXMMIRACIRISGALEX All (CDSPortal) Send to within 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!).
Some important notes on this object about identifications and objects associations. notes: See also Specfind radio flux densities.

ICRF J124357.6+162253	2MASS J12435768+1622533	RGB J1243+163D	[HBS81] 3C 275.1 1
BWE 1241+1638	2MASSI J1243576+162253	RGB J1243+163E	[S77] 212
3C 275.1	MITG J124359+1622	RX J1243.9+1623	[TSA98] J124357.35+162301.09
4C 16.34	MRC 1241+166	1RXS J124357.7+162253	[VV2000] J124357.7+162253
3CR 275.1	NRAO 406	S3 1241+16	[VV2003] J124357.7+162253
Cul 1241+166	NRAO 1241+16	SDSS J124357.65+162253.3	[VV2006] J124357.7+162253
DA 330	NVSS J124357+162252	TIC 87642734	[VV2010] J124357.7+162252
2E 2836	OHIO N 169	TXS 1241+166	[VV96] J124357.7+162253
2E 1241.4+1639	PKS J1243+1622	UT 1241+166	[VV98] J124357.7+162253
FIRST J124357.6+162248	PKS 1241+16	VRO 16.12.02	[WTW94] 1241+166
GB6 B1241+1638	PKS 1241+166	WB 1241+1638	EQ 1241+16
87GB 124127.9+163835	QSO B1241+166	WISEA J124357.65+162253.4	Gaia DR3 3934402111441614208
IERS B1241+166	QSO B1241+1639	WISE J124357.65+162253.4	Gaia DR1 3934402111441614208
IVS B1241+166	RGB J1243+163A	[A96] NGC 4651 14	Gaia DR2 3934402111441614208
LBQS 1241+1639	RGB J1243+163B	[GW2008] CoNFIG 144
LEDA 2819359	RGB J1243+163C	[HB93] 1241+166

References (312 between 1850 and 2024) (Total 312) Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system). Follow new references on this object

Collections of Measurements

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : 3C 275.1

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