CDS

8C 1849+670

Query : 8C 1849+670

Basic data :
ICRF J184916.0+670541 -- 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: 		Sy1 (), Rad (2010AJ,ICRF,...), QSO (2008ApJS,QSO,...), gam (1AGL,2AGL,...), Bla (2009A&A,[MGL2009],...), X (2009A&A,1RXS,...), AGN (2011ApJ,CGRaBS), Bz? ([SRM2005]), * (Gaia), IR (WISE)
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) : 		18 49 16.0719656904 +67 05 41.681210424 (Optical) [ 0.0646 0.0601 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) : 		18 49 16.5300043850 +67 02 07.876392162 [ 0.0646 0.0601 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) : 		097.4913492199887 +25.0437161254442 [ 0.0646 0.0601 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 : 		0.120 -0.065 [0.121 0.117 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) 140142 [~] / z(spectroscopic) 0.66 [~] / cz 197863 [~]
   (Opt) D 2017ApJS..233....3T
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 0.0000058 28 (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 (3) :
V 20 [~] E ~
R 17.45 [~] D 2008ApJS..175...97H
G 18.894199 [0.013405] C 2020yCat.1350....0G
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 Simbad points in this preview
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sedIcon
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!). sed-help-icon
Some important notes on this object about identifications and objects associations.
notes:

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (60) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

ICRF J184916.0+670541 3FGL J1849.2+6705 RGB J1849.3+6705 WN B1849.2+6702A
1AGL J1846+6714 4FGL J1849.2+6705 RORF 1849+670 9Y-MST J1849+6705
2AGL J1849+6706 1FHL J1849.3+6705 1RXS J184916.0+670539 [MGL2009] BZQ J1849+6705
1AGLR J1848+6709 3FHL J1849.3+6705 S4 1849+67 [MML2015] 5BZQ J1849+6705
BWE 1849+6702 GB6 J1849+6705 S4 1849+670 [P82] 1849+670
6C 184914+670207 87GB 184917.6+670214 SWIFT J1848.5+6704 [SRM2005] J184916.07+670541.6
6C 184915+670219 IERS B1849+670 TXS 1849+670 [VV2000] J184916.0+670541
8C 1849+670 IVS B1849+670 WB 1849+6702 [VV2003] J184916.0+670541
CGRaBS J1849+6705 JVAS J1849+670 WISE J184916.08+670541.5 [VV2006] J184916.0+670541
CJ2 1849+670 JVAS B1849+670 WISE J184916.09+670541.6 [VV2010] J184916.0+670541
CJF B1849+670 NVSS J184915+670540 WMAP 65 [VV96] J184916.0+670541
CLASS J184916.0776+670541.674 PCCS1 030 G097.50+25.03 WMAP J1849+6705 [VV98] J184916.0+670541
0FGL J1849.4+6706 QSO B1849+670 WMAP J1849+6704 Gaia EDR3 2255678139092133760
1FGL J1849.3+6705 QSO J1849+6705 WN B1849+6702 Gaia DR1 2255678134794231552
2FGL J1849.4+6706 RGB J1849+670 WN B1849.2+6702 Gaia DR2 2255678134794231552

References (235 between 1850 and 2022) (Total 235)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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                Reference summaries :

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Collections of Measurements


velocities : 3    PM : 3   

   

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : 8C 1849+670

Link by name to the catalogue in VizieR :

BWE 1849+6702 IERS B1849+670 NVSS J184915+670540 1RXS J184916.0+670539 WISE J184916.08+670541.5
WISE J184916.09+670541.6 WMAP J1849+6705 WMAP J1849+6704 WN B1849+6702 WN B1849.2+6702
WN B1849.2+6702A Gaia EDR3 2255678139092133760 Gaia DR1 2255678134794231552 Gaia DR2 2255678134794231552

Search by coordinates in Vizier (radius: 5 arcsec)

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2022.08.14-19:00:27

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