7C 081451.89+423206.00

Basic data :
7C 081451.89+423206.00 -- 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 (2010AJ,7C,...), gam (2AGL,0FGL,...), BLL (2008AJ,[VV2000b],...), QSO (2016A&A,QSO,...), X (2007AJ,RX,...), Bla ([DGT2001],[MGL2009],...), IR (2MASS,WISEA,...), AGN (2011AJ,CGRaBS), BL? (2007AJ), Bz? ([SRM2005]), G (2021AJ), * (Gaia) 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) : 08 18 15.99961476 +42 22 45.4148987 (Radio) [ 0.0311362 0.0314 0 ] A 2020A&A...644A.159C 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) : 08 14 51.66989668 +42 32 07.7843943 [ 0.0311362 0.0314 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] : 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) : 178.22778325872 +33.40198658102 [ 0.0311362 0.0314 0 ] 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 : -0.114 0.015 [0.142 0.115 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) 120298 [36] / z(spectroscopic) 0.52984 [0.00012] / cz 158842.0 [36.0]    (Opt) C 2008ApJS..175..297A 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): 0.0727 [0.1300] A 2018yCat.1345....0G 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) (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): 0.0000090 0.0000057 -20 (Rad) D 2010AJ....139.1713C 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 18.88 [~] D 2010A&A...518A..10V V 18.18 [~] D 2010A&A...518A..10V R 17.81 [~] D 2008ApJS..175...97H G 17.719507 [0.028195] C 2020yCat.1350....0G J 15.896 [0.080] C 2003yCat.2246....0C H 14.908 [0.082] C 2003yCat.2246....0C K 14.036 [0.054] C 2003yCat.2246....0C u (AB) 19.224 [0.022] C 2020ApJS..249....3A g (AB) 18.621 [0.008] B 2020ApJS..249....3A r (AB) 18.099 [0.007] B 2020ApJS..249....3A i (AB) 17.712 [0.007] B 2020ApJS..249....3A z (AB) 17.392 [0.013] C 2020ApJS..249....3A	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 081451.89+423206.00	GB6 J0818+4222	QSO J0818+4222	WMAP J0818+4224
2AGL J0819+4237	87GB 081452.1+423212	RORF 0814+425	WN B0814.8+4232
B3 0814+425	ICRF J081815.9+422245	RX J0818.3+4222	9Y-MST J0818+4222
B3VLA 0814+425	IERS B0814+425	1RXS J081817.0+422254	[DGT2001] B0814+425
BWE 0814+4232	IVS B0814+425	S4 0814+42	[HB93] 0814+425
CGRaBS J0818+4222	JVAS J0818+423	S4 0814+425	[HMI96] 0814+4232
CJ1 0814+425	JVAS B0814+425	SDSS J081815.99+422245.4	[MGL2009] BZB J0818+4222
CJF B0814+425	JVAS J0818+4222	SDSS J081816.00+422245.4	[MML2015] 5BZB J0818+4222
CLASS J081815.9994+422245.408	1Jy 0814+425	SDSS J081815.99+422245.2	[P82] 0814+425
F2M J081816.01+422245.6	1Jy 0814+42	TIC 22704296	[SRM2005] J081815.99+422245.4
0FGL J0818.3+4222	LAMOST J081815.99+422245.2	TXS 0814+425	[VV2000b] J081816.1+422246
1FGL J0818.2+4222	MASIV J0818+4222	VIPS J08182+4222	[VV2003b] J081816.1+422246
2FGL J0818.2+4223	2MASS J08181600+4222456	VLSS J0818.2+4222	[VV2006b] J081816.1+422246
3FGL J0818.2+4223	MY 081450.6+423214.1	VRO 42.08.02	[VV2010b] J081816.1+422246
4FGL J0818.2+4222	MY 081450.6+422251.8	VSOP J0818+4222	[VV98b] J081816.1+422246
1FHL J0817.9+4224	NVSS J081816+422245	WB 0814+4232	Gaia DR3 915854741686376576
3FHL J0818.2+4222	OHIO J 425	WISEA J081816.00+422245.4	Gaia DR1 915854737390275584
FIRST J081816.0+422245	PCCS1 030 G178.26+33.40	WISE J081816.00+422245.5	Gaia DR2 915854741686376576
1FLE J0818+4202	QSO B0814+425	WISE J081816.00+422245.4
GB6 B0814+4232	QSO B0814+42	WMAP J0818+4222

References (380 between 1850 and 2023) (Total 380) 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

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

Data at NED - NASA/IPAC Extragalactic Database : 7C 081451.89+423206.00

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