ICRF J123014.0+251807

Basic data :
7C 122744.79+253415.00 -- BL Lac 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 (2020A&A,7C,...), BLL (2010ApJ,[NBK96],...), gam (1FGL,2FGL,...), Bla (2013ApJS,[DGT2001],...), Bz? (2019A&A,3HSP,...), X (2009A&A,RBS,...), * (Cl*,GSC,...), Opt (ATO,LAMOST,...), QSO (2015MNRAS), AGN (2011ApJ,CGRaBS), V* (2018AJ,NSV), MIR (WISEA,WISE), BL? (2021MNRAS), Q? (FBQS), GiC (CAIRNS), G (2021AJ), V*? (SV*), NIR (2MASS) 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 30 14.0893292232 +25 18 07.136022996 (Optical) [ 0.0275 0.0232 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 27 44.3408532938 +25 34 41.211298111 [ 0.0275 0.0232 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) : 232.7540940245758 +84.9064736641181 [ 0.0275 0.0232 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 : 0.012 0.011 [0.038 0.031 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) 37762 [~] / z(spectroscopic) 0.135 [~] / cz 40472 [~]    D 2011NewA...16..503M 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 (12) : B 15.6 [~] E ~ V 14.5 [~] E ~ R 14.78 [~] D 2008ApJS..175...97H G 15.512402 [0.031902] C 2020yCat.1350....0G J 13.185 [0.021] C 2003yCat.2246....0C H 12.431 [0.017] C 2003yCat.2246....0C K 11.692 [0.018] C 2003yCat.2246....0C u (AB) 15.445 [0.005] B 2012ApJS..203...21A g (AB) 15.039 [0.004] B 2012ApJS..203...21A r (AB) 14.708 [0.004] B 2012ApJS..203...21A i (AB) 18.517 [0.023] C 2012ApJS..203...21A z (AB) 14.229 [0.005] B 2012ApJS..203...21A	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.

7C 122744.79+253415.00	GSC 01989-02067	RX J1230.2+2518	WISE J123014.08+251807.1
ATO J187.5587+25.3019	3HSP J123014.1+251807	RX J1230.2+2517	9Y-MST J1230+2518
BWE 1227+2535	ICRF J123014.0+251807	RX J1230.2+2512	[DGT2001] J1230+2517
CAIRNS J123014.09+251807.1	IERS B1227+255	1RXS J123014.2+251805	[HMI96] 1227+2534
CGRaBS J1230+2518	IVS B1227+255	S3 1227+25	[MGL2009] BZB J1230+2518
Cl* Melotte 111 GRZ 9	JVAS B1227+255	SDSS J123014.08+251807.1	[MML2015] 5BZB J1230+2518
CLASS J123014.0934+251807.144	JVAS J1230+2518	SV* SVS 2307	[NBK96] J12302+2517
CRATES J123015+251823	LAMOST J123014.08+251807.1	TeV J1230+253	[RSP96] 9
FBQS J1230+2518	LINEAR 3766947	TGSSADR J123014.2+251806	[SRM2005] J123014.09+251807.1
1FGL J1230.4+2520	2MASS J12301408+2518072	TIC 1153022	[VV2000b] J123014.0+251806
2FGL J1230.2+2517	MITG J123013+2517	TXS 1227+255	[VV2003b] J123014.0+251806
3FGL J1230.3+2519	NSV 19409	VCS1 J1230+2518	[VV2006b] J123014.0+251806
4FGL J1230.2+2517	NVSS J123014+251807	VER J1230+253	[VV2010b] J123014.0+251806
1FHL J1230.3+2522	OHIO N 246	VIPS J12302+2518	[VV98b] J123014.0+251806
3FHL J1230.2+2517	RBS 1121	WB 1227+2535	[ZEH2003] RX J1230.2+2518 1
FIRST J123014.0+251807	RFC J1230+2518	2WHSP J123013.9+251806	Gaia DR3 3960262766661145216
GB6 B1227+2534	RGB J1230.2+2518	WISEA J123014.08+251807.1	Gaia DR1 3960262762365465728
87GB 122746.7+253502	RGB J1230+253	WISE J123014.09+251807.1	Gaia DR2 3960262766661145216

References (152 between 1850 and 2024) (Total 152) 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 : 7C 122744.79+253415.00

Link by name to the catalogue in VizieR :

Search by coordinates in Vizier (radius: 5 arcsec)

Annotations :
Annotations allow a user to add a note or report an error concerning the astronomical object and its data. It requires registration to post a note. See description .
Please, have a look at Best practices. The list of all annotations to SIMBAD objects can be found here .

Currently no annotations available

add an annotation to this object

report an error concerning the data of this object

Store this result in Votable, in Ascii, or in the CDS portal

To bookmark this query, right click on this link: simbad:@1931054 and select 'bookmark this link' or equivalent in the popup menu