NGC 4278

Query : NGC 4278

Basic data :
NGC 4278 -- LINER-type Active Galaxy Nucleus
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:
LIN (), Rad (2016A&A,B2,...), G (2015ApJS,CASG,...), X (1RXP,RX,...), AGN ([VV2000c],[VV2003c],...), IR (IRAS,2MASS,...), GiG ([CHM2007],[TT2002]), smm (JCMTSE,JCMTSF), GiC (CAIRNS), EmG (KISSR), gam (INTREF)
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 20 06.8253868 +29 16 50.713486 (Radio) [ 0.340 0.402 90 ] A 2016AJ....151..154G
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 17 36.1656487 +29 33 29.383837 [ 0.340 0.402 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) :
193.7823697260 +82.7727443368 [ 0.340 0.402 90 ]
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) 675 [49] / z(~) 0.00225 [0.00016] / cz 676.0 [49.0]
   D 1999PASP..111..438F
Syntax of morphological type is : mtype quality bibcode
  • mtype : Hubble morphological class (spirals, ellipticals, etc)
  • quality : flag of quality (A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the morphological type reference
Morphological type:
E C 2015ApJS..217...27A
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):
2.107 1.896 35 (NIR) C 2006AJ....131.1163S
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 (11) :
U 11.54 [0.13] D 2007ApJS..173..185G
B 11.09 [0.13] D 2007ApJS..173..185G
V 10.16 [0.13] D 2007ApJS..173..185G
J 8.085 [0.007] C 2006AJ....131.1163S
H 7.415 [0.009] C 2006AJ....131.1163S
K 7.184 [0.011] C 2006AJ....131.1163S
u (AB) 13.377 [0.003] C 2009ApJS..182..543A
g (AB) 11.515 [0.002] C 2009ApJS..182..543A
r (AB) 10.704 [0.001] C 2009ApJS..182..543A
i (AB) 10.298 [0.001] C 2009ApJS..182..543A
z (AB) 9.918 [0.002] C 2009ApJS..182..543A
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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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!).
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Some important notes on this object about identifications and objects associations.
notes:


Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

: 8
The count displayed here is the number of children objects.
The list obtained by clicking the button may be larger, as some children may be linked with different references or probability.

%This number is the number of distinct objets linked, by using this button, you will obtain all links (may be more than one) from that object to his children

: 394
: 139 Display criteria :

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (68) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

NGC 4278 JCMTSF J122006.5+291649 RX J1220.1+2916 [CHM2007] LDC 867 J122006.79+2916502
B2 1217+29 JVAS B1217+295 RX J122006.2+291643 [CRJ2004] J1220.1+2916
B2.1 1217+29 JVAS J1220+2916 1RXS J122006.2+291643 [DC78] UGC 7386
B2.2 1217+29 KISS F1220-3863 SDSS J122006.82+291650.6 [DML87] 655
BWE 1217+2933 KISSR 29 TIC 328862287 [FWB89] Galaxy 247
7C 121736.50+293332.00 LEDA 39764 TXS 1217+295 [KRN93] 150
CAIRNS J122006.82+291650.7 2MASS J12200681+2916505 UGC 7386 [LB2005] NGC 4278 X1
CASG 170 2MASX J12200679+2916502 UZC J122006.8+291651 [M98c] 121736.5+293326
FIRST J122006.8+291650 2MASX J12200682+2916498 VIPS J12201+2916 [SMM2006b] J122006.82+291650.7
GB6 B1217+2933 MCG+05-29-062 WB 1217+2933 [TT2002] Coma I 2
87GB 121735.6+293357 MITG J122007+2916 WN B1217.6+2933 [VV2000c] J122006.9+291651
ICRF J122006.8+291650 NVSS J122006+291650 2XMM J122006.8+291651 [VV2003c] J122006.9+291651
IERS B1217+295 RGB J1220.1+2916 Z 158-77 [VV2006c] J122006.9+291651
INTREF 487 RGB J1220+292 Z 1217.6+2933 [VV2010c] J122006.9+291651
IRAS F12176+2933 1RXP J122007.2+291646 [ATZ98] D106 [VV98c] J122006.9+291651
IRAS 12175+2933 RX J122006+29168 [CAB95] IRAS F12176+2933 [WTK2001] J122006.76+291649.8
JCMTSE J122006.5+291649 RX J1220.0+2916 [CHM2007] HDC 706 J122006.79+2916502 EQ 1217+295

References (903 between 1850 and 2021) (Total 903)
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 : 17    distance : 8   

   

Observing logs


ISO : 4    XMM : 1   

   


External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : NGC 4278

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Annotations :
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Please, have a look at Best practices. The list of all annotations to SIMBAD objects can be found here .

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2021.10.18-03:46:18

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