2MASSI J1000218+223318

Basic data :
4C 22.25 -- Seyfert 2 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: Sy2 (), Rad (7C,B2,...), QSO (2015MNRAS,QSO,...), Bla (2009A&A,[IN88],...), G (2018MNRAS,LEDA), X (2009A&A,RX), Opt (LAMOST,SDSS), Bz? (2015Ap&SS), * (Gaia), NIR (2MASS), IR (2MASSI) 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) : 10 00 21.8025145008 +22 33 18.641137932 (Optical) [ 0.1834 0.1423 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) : 09 57 33.9927087356 +22 47 44.200197103 [ 0.1834 0.1423 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) : 209.9887921639979 +51.1025495957142 [ 0.1834 0.1423 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 : -0.139 0.203 [0.218 0.161 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) 100817 [6] / z(spectroscopic) 0.41893 [0.00002] / cz 125592.1 [6.0]    (Opt) C 2015ApJS..219...12A 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): 0.2498 [0.2028] A 2020yCat.1350....0G 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 18.30 [~] D 2010A&A...518A..10V V 18 [~] D 2010A&A...518A..10V R 17 [~] E 2009A&A...495..691M G 18.583160 [0.013813] C 2020yCat.1350....0G J 16.662 [0.121] C 2010AJ....139.2360S H 15.806 [0.145] C 2010AJ....139.2360S K 15.523 [0.170] C 2010AJ....139.2360S u (AB) 19.241 [0.024] C 2015ApJS..219...12A g (AB) 18.788 [0.009] C 2015ApJS..219...12A r (AB) 18.436 [0.008] C 2015ApJS..219...12A i (AB) 18.013 [0.009] C 2015ApJS..219...12A z (AB) 17.632 [0.017] C 2015ApJS..219...12A	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: Black hole binary candidate (cf. 2013MNRAS.433.1492D) See also Specfind radio flux densities.

7C 095733.9+224735	2MASS J10002180+2233183	RGZ J100021.7+223318	[MGL2009] BZU J1000+2233
B2.4 0957+22	2MASSI J1000218+223318	RX J1000.3+2233	[MML2015] 5BZU J1000+2233
BWE 0957+2247	MITG J100021+2232	S3 0957+22	[VV2000] J100021.8+223319
4C 22.25	NRAO 0957+22	SDSS J100021.80+223318.6	[VV2003] J100021.8+223319
7C 0957+2247	NVSS J100021+223318	TGSSADR J100021.9+223318	[VV2006] J100021.8+223319
Cul 0957+227	OHIO K 296	TIC 26973549	[VV2010] J100021.8+223319
FIRST J100021.8+223319	PKS 0957+227	TXS 0957+227	[VV96] J100021.8+223319
GB6 B0957+2247	PKS J1000+2233	VLSSr J100021.7+223320	[VV98] J100021.8+223319
87GB 095735.1+224731	PKS 0957+22	VRO 22.09.03	Gaia DR2 629877604161293696
GLEAM J100021+223310	QSO B0957+227	WB 0957+2247	Gaia DR3 629877604161293696
IERS B0957+227	QSO J1000+2233	[BHB98] J100021.8+223319
LAMOST J100021.80+223318.6	RGB J1000+225A	[HB93] 0957+227
LEDA 2819736	RGB J1000+225B	[IN88] 0957+227

References (85 between 1850 and 2024) (Total 85) 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 : 4C 22.25

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