Ton 490

Basic data :
Ton 490 -- Quasar 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,7C,...), QSO (2005ApJ,QSO,...), Bla (2009A&A,[MGL2009],...), X (2009A&A,2E,...), IR (2MASS,2MASSI,...), AGN (CGRaBS), Bz? ([SRM2005]), Q? (FBQS), G (2016MNRAS), * (Gaia), blu (Ton), UV (PG) 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 13 53.4287601600 +24 49 16.439265696 (Optical) [ 0.0497 0.0434 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) : 10 11 05.6342911083 +25 04 10.274643722 [ 0.0497 0.0434 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) : 207.6009141880246 +54.6593527360978 [ 0.0497 0.0434 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 : 0.027 0.101 [0.062 0.052 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) 224274 [588] / z(spectroscopic) 1.63430 [0.00196] / cz 489950.8 [587.6]    D 2009ApJS..182..543A 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 16.59 [~] D 2010A&A...518A..10V V 16.57 [~] D 2010A&A...518A..10V R 15.85 [~] D 2008ApJS..175...97H G 16.242624 [0.003478] C 2020yCat.1350....0G J 15.030 [0.042] C 2010AJ....139.2360S H 14.064 [0.036] C 2010AJ....139.2360S K 13.896 [0.048] C 2010AJ....139.2360S u (AB) 16.6915 [0.0194] C 2020ApJS..250....8L g (AB) 16.5452 [0.0169] C 2020ApJS..250....8L r (AB) 16.3510 [0.0182] C 2020ApJS..250....8L i (AB) 16.0822 [0.0268] C 2020ApJS..250....8L z (AB) 16.0299 [0.0130] 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.

7C 1011+2503	JVAS B1011+250	RORF 1011+250	[MML2015] 5BZQ J1013+2449
B2 1011+25	JVAS J1013+2449	RX J1013.8+2449	[S77] 152
B2.2 1011+25	LAMOST J101353.43+244916.5	RX J1013.9+2449	[SRM2005] J101353.42+244916.4
BWE 1011+2504	MASIV J1013+2449	1RXS J101353.3+244936	[VV2000] J101353.4+244916
CGRaBS J1013+2449	2MASS J10135343+2449165	S3 1011+25	[VV2003] J101353.4+244916
CLASS J101353.4262+244916.428	2MASSI J1013534+244916	SDSS J101353.43+244916.4	[VV2006] J101353.4+244916
2E 2244	MITG J101353+2449	SDSS J101353.43+244916.5	[VV2010] J101353.4+244916
2E 1011.0+2504	NRAO 1011+25	TIC 241195359	[VV96] J101353.4+244916
FBQS J1013+2449	NVSS J101353+244915	Ton 490	[VV98] J101353.4+244916
FIRST J101353.4+244916	PG 1011+25	TXS 1011+250	[WTW94] 1011+250
GB6 B1011+2504	QSO J1013+2449	VIPS J10138+2449	[ZEH2003] RX J1013.8+2449 1
87GB 101105.4+250410	QSO B1011+2504	WISEA J101353.43+244916.4	Gaia EDR3 726636590205957248
ICRF J101353.4+244916	QSO B1011+250	WISE J101353.43+244916.4	Gaia DR1 726636585910575360
IERS B1011+250	RGB J1013.9+2449	[HB93] 1011+250	Gaia DR2 726636590205957248
IVS B1011+250	RGB J1013+248	[MGL2009] BZQ J1013+2449

References (181 between 1850 and 2022) (Total 181) 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 : Ton 490

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:@1688029 and select 'bookmark this link' or equivalent in the popup menu