NGC 4051

Query : NGC 4051

Basic data :
NGC 4051 -- 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: 		X (2012ApJS,2E,...), G (2015ApJS,CASG,...), Rad (B3,BWE,...), AGN (2021Sci,[HB91],...), * (BD,CSI,...), IR (IRAS,PSCz,...), Sy1 (2013ApJS), QSO (2016ApJ,QSO), smm (JCMTSE,JCMTSF), UV (2EUVE,EUVE), GiG ([CHM2007]), AG? (2020MNRAS), Em* (EM*), V* (AAVSO), gam (INTREF), MIR (WISE), Opt (SDSS), var (2021Sci)
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 03 09.6101337312 +44 31 52.682601288 (Optical) [ 0.0379 0.0304 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) : 		12 00 36.3985163630 +44 48 34.647477459 [ 0.0379 0.0304 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) : 		148.8831147230166 +70.0851695512800 [ 0.0379 0.0304 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 : 		0.052 -0.063 [0.049 0.043 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) 612 [150] / z(emission) 0.00204310 [0.0005] / cz 612.5060 [150]
   (Opt) C 2022ApJS..261....2K
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): 		0.0369 [0.1619] A 2018yCat.1345....0G
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: 		SABc 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): 		5.25 4.27 135 (Opt) D 2003A&A...412...45P
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 11.08 [0.02] C 2016MNRAS.460..689R
V 12.92 [~] D 2010A&A...518A..10V
R 9.94 [0.02] C 2016MNRAS.460..689R
G 14.724078 [0.007492] C 2020yCat.1350....0G
J 8.578 [0.024] C 2006AJ....131.1163S
H 8.059 [0.032] C 2006AJ....131.1163S
K 7.670 [0.035] C 2006AJ....131.1163S
u (AB) 14.587 [0.005] C 2009ApJS..182..543A
g (AB) 12.853 [0.002] C 2009ApJS..182..543A
r (AB) 10.646 [0.002] C 2009ApJS..182..543A
i (AB) 11.594 [0.002] C 2009ApJS..182..543A
z (AB) 11.320 [0.002] C 2009ApJS..182..543A
SIMBAD within arcmin
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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!). sed-help-icon
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 ) :

: 2
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

: 4 		: 75 Display criteria :

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (73) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

NGC 4051 IRAS F12006+4448 RX J1203.1+4431 [DML87] 650
B3 1200+448 JCMTSE J120309.7+443150 1RXS J120308.9+443155 [HB91] 1200+448
BD+45 1987 JCMTSF J120309.7+443150 SDSS J120309.61+443152.6 [KRL2007b] 105
BWE 1200+4448 LEDA 38068 SWIFT J1203.0+4433 [LB2005] NGC 4051 X1
6C 120036+444841 2MASX J12030968+4431525 SWIFT J1203.0+4432 [M98c] 120035.9+444848
7C 120036.00+444828.00 2MAXI J1203+445 SWIFT J1203.0+4431 [NKB95] N4051
CASG 1500 MCG+08-22-059 TC 760 [SMM2006b] J120309.59+443152.5
CSI+44-12006 MY 120032.0+444851.5 UGC 7030 [VV2000c] J120309.6+443153
2E 2578 MY 120032.0+443209.5 UZC J120309.5+443155 [VV2003c] J120309.6+443153
2E 1200.6+4448 NVSS J120309+443154 WISE J120309.61+443152.7 [VV2006c] J120309.6+443153
EM* StHA 85 PBC J1203.1+4430 WN B1200.6+4448 [VV2010c] J120309.6+443153
1ES 1200+44.8 PLX 2779 2XMM J120309.5+443152 [VV98c] J120309.6+443153
2EUVE J1203+44.5 PLX 2779.00 XSS J12032+4424 [ZEH2003] RX J1203.1+4431 1
EUVE J1203+44.5 PSCz Q12005+4448 Z 243-38 AAVSO 1158+44
GB6 B1200+4449 QDOT B1200359+444836 Z 1200.6+4448 Gaia DR3 1537908427262118912
87GB 120038.5+444901 QSO J1203+4431 [BAG2012] 180.7713+44.5210 Gaia DR2 1537908427262118912
1H 1205+440 RBS 1060 [CAB95] IRAS F12006+4448
INTREF 473 1RXP J120310.2+443156 [CHM2007] HDC 706 J120309.68+4431525
IRAS 12005+4448 RX J1203.1+4432 [CHM2007] LDC 867 J120309.68+4431525

References (2164 between 1850 and 2024) (Total 2164)
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 : 19    distance : 12    PLX : 2    PM : 2   

   

Observing logs


herschel : 10    ISO : 9    IUE : 30    XMM : 2   

   

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : NGC 4051

Link by name to the catalogue in VizieR :

NGC 4051 BD+45 1987 BWE 1200+4448 2E 2578 EUVE J1203+44.5
IRAS 12005+4448 IRAS F12006+4448 2MASX J12030968+4431525 NVSS J120309+443154 PLX 2779
1RXS J120308.9+443155 SDSS J120309.61+443152.6 UGC 7030 WISE J120309.61+443152.7 WN B1200.6+4448
[DML87] 650 Gaia DR3 1537908427262118912 Gaia DR2 1537908427262118912

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