Date and Time of the Query: 2019-08-22 T12:52:13 PDT
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You have selected the following parameters to search on:

Parameters for Distances and Cosmology: Ho= 73.0; Ωmatter = 0.27; Ωvacuum = 0.73;
Derived Quantities use a Redshift corrected to a Reference Frame defined by the 3K CMB

NED results for object MRK 0421

1 objects found in NED.    


 Row          Object Name                 EquJ2000.0       Object  Velocity/Redshift    Mag./  Separ.               Number of                                 Row 
 No.     (* => Essential Note)       RA               DEC  Type     km/s       z   Qual Filter arcmin Refs Notes Phot Posn Vel/z Diam Assoc Images   Spectra  No. 
1    MRK 0421                       11h04m27.3s +38d12m32s G        9000  0.030021      12.8V    ...  1235    17  298   72    52   10     0 Retrieve Retrieve 1   

Detailed information for each object

Object No. 1 - MRK 0421

INDEX for MRK 0421
Essential Data (jump to sub-section of this query report):

   Essential Note    
   Basic Data   
   Quantities Derived from Redshift    
   Redshift-Independent Distances
   Quick-Look Photometry and Luminosities
   Quick-Look Angular and Physical Sizes
   Foreground Galactic Extinction    
   External Services
Detailed Data (NED queries):

298 Photometric data point(s) and SED   
Redshift-Independent Distances
1235 Reference(s)   
72 Position data point(s)
52 Redshift data point(s)   
10 Diameter data point(s)   
17 Note(s)   
UGC data    
RC3 data    
HB89 data    


Object Names Type Object Names Type
MRK 0421UvES RGB J1104+382 RadioS
UGC 06132 G VIPS 0402 RadioS
KUG 1101+384A GPair VIPS J11044+3812 RadioS
CGCG 184-050 G WB J1104+3812 RadioS
CGCG 1101.7+3828 G WIBRaLS J1104+3812 G
FBQS J110427.3+381231 QSO 2RE J1104+382 XrayS
PG 1101+385 WD* RX J1104.4+3812 XrayS
[HB89] 1101+384 QSO 1RXS J110427.1+381231 XrayS
B2 1101+38 RadioSMAXI J1104+382 XrayS
B3 1101+384 RadioS2PBC J1104.4+3813 XrayS
WISE J110427.30+381231.7 IrS PBC J1104.4+3813 XrayS
WISE J110427.32+381231.9 IrS SAXWFC J1104.4+3812.0 XrayS
2MASX J11042732+3812320 IrS XMMSL1 J110427.4+381228 XrayS
2MASS J11042730+3812318 IrS XMMSL1 J110427.8+381230 XrayS
SDSS J110427.31+381231.7 * H 1105+38 XrayS
CG 1364 G 1H 1104+382 XrayS
LDCE 0773 NED004 G 1ES 1101+384 XrayS
HDCE 0625 NED004 G 2E 1101.6+3828 XrayS
LQAC 166+038 004 G 2A 1102+384 XrayS
CGRaBS J1104+3812 QSO 3A 1102+385 XrayS
NFGS 074 G XRS 11020+384 XrayS
NSA 138679 G XSS J11045+3808 XrayS
PGC 033452 G 3FGL J1104.4+3812 GammaS
RBS 0939 QSO SWIFT J1104.4+3812 XrayS
SHBL J110427.3+381231 QSO SWIFT J1104.5+3812 XrayS
SSTSL2 J110427.32+381231.7 IrS 2FGL J1104.4+3812 GammaS
UZC J110427.3+381232 G 1FGL J1104.4+3812 GammaS
BZB J1104+3812 QSO 0FGL J1104.5+3811 GammaS
1WHSP J110427.3+381231 QSO 1AGL J1104+3754 GammaS
MG2 J110425+3813 RadioSEGR J1104+3813 GammaS
87GB 110140.1+382841 RadioS2EG J1104+3812 GammaS
87GB[BWE91] 1101+3828 RadioS3EG J1104+3809 GammaS
[WB92] 1101+3828 RadioSGEV J1104+3809 GammaS
FIRST J110427.3+381231 RadioSTeV J1104+382 GammaS
NVSS J110427+381231 RadioSMRK 0421:[U78] 1 G
NVSS J110427+381232 RadioSRX J1104.4+3812:[BEV98] 013 G
VLSS J1104.4+3812 RadioS[VCV2001] J110427.2+381232 QSO
6C B110140.8+382847 RadioS[FS2003] 0578 XrayS
7C 1101+3828 RadioSRX J1104.4+3812:[ZEH2003] 01 VisS
EUVE J1104+38.1 UvES [HRT2007] J110428+381228 RadioS
EUVE J1104+38.2 UvES [JBB2007] J110427.31+381231.7 RadioS
EGO 1101+384 VisS [LLK2008] 1101+384 RadioS
S4 1101+38 RadioS[MGL2009] 1218 QSO
OM +303 RadioS[WMR2009] 076 G
CRATES J1104+3812 RadioS[LBC2010] J1104+3812 RadioS
CRATES J110427.31+381231.8 RadioS[TES2010] 026 XrayS
TXS 1101+384 RadioS[LTS2012] J11044+3812 G
GB2 1101+384 RadioS[MSU2014] J110427+381232 QSO
GB6 J1104+3812 RadioS[DZ2015] 755-01 G
ICRF J110427.3+381231 RadioS    
IERS B1101+384 RadioS    
JVAS J1104+3812 RadioS    
MASIV J1104+3812 RadioS    
PLFV 1101+3828 RadioS    
PS 268 NED02 RadioS    
PS 268c QSO    
RE J1104+381 XrayS    

COORDINATES for MRK 0421 (Back to INDEX)

Position Reference:2004AJ....127.3587F

Reference    Frame     Longitude    Latitude        RA           DEC      Uncertainty Ellipse (arcsec)
                       (degrees)   (degrees)                              Semimajor Semiminor  PA(deg)
Equatorial (B1950.0) 165.4190404  38.4786302 11h01m40.5697s +38d28m43.069s  8.10E-04  6.30E-04   90
Equatorial (J2000.0) 166.1138079  38.2088331 11h04m27.3139s +38d12m31.799s  8.10E-04  6.30E-04   90
Ecliptic   (B1950.0) 150.5153130  29.5008419                              8.10E-04  6.30E-04   64
Ecliptic   (J2000.0) 151.2171515  29.5035631                              8.10E-04  6.30E-04   64
Galactic             179.8317798  65.0315319                              8.10E-04  6.30E-04  162
SuperGalactic         71.5313799 -10.5706082                              8.10E-04  6.30E-04   30
Additional detailed measurements with references are also available by clicking below:
72 Position data point(s)


2 Distances found in NED View 2 Individual Distance Measurement(s) for MRK 0421

Summary Statistics computed by NED from 2 Distance(s) in the literature:
NOTE: These summary statistics are provided for "quick-look" reference only;
they are based exclusively on original values, as published.
No homogenization or corrections have been applied.

MRK 0421 Distance Modulus
Metric Distance
Mean 34.27 85.150
Std. Dev. 2.00 67.670
Min. 32.86 37.300
Max. 35.69 133.000
Median 34.27 85.150

TypeAs PublishedNED HomogenizedFlagReference Code
HierarchyFLField galaxy...1976ApJS...32..409T
Galaxy MorphologyS?S?...1991RC3.9.C...0000d
Radio Morphologyradio jetradio jet...1992A&AS...95..249L
Activity TypeFlat-Spectrum Radio Source,Flat-Spectrum Radio Source...2007ApJS..171...61H
Distance IndicatorGeV TeV ratioGeV TeV ratio...2010MNRAS.405L..76P
12 Detailed Classification(s)

Galactic Extinction from the Schlafly & Finkbeiner 2011, Appendix; 2011ApJ...737..103S (SF11) recalibration 
of the Schlegel, Finkbeiner & Davis 1998, Appendix B; 1998ApJ...500..525S (SFD98) infrared-based dust map.
The map is based on dust emission from COBE/DIRBE and IRAS/ISSA;
the recalibration assumes a Fitzpatrick (1999PASP..111...63F) reddening law with Rv = 3.1 and different source spectrum than SFD98.

L a n d o l tS D S SU K I R T
Filter [µm]U (0.35)B (0.43)V (0.54)R (0.64)I (0.80)u (0.36)g (0.47)r (0.62)i (0.75)z (0.89)J (1.25)H (1.66)K (2.19)L' (3.78)
Aλ [mag]0.0660.0550.0420.0330.0230.0650.0500.0350.0260.0190.0110.0070.0050.002
Show/Hide Aλ magnitudes in all 88 photometric bands based on SF11
For completeness, we include the original SFD98 values:
L a n d o l tS D S SU K I R T
Filter [µm]U (0.34)B (0.44)V (0.54)R (0.65)I (0.81)u (0.35)g (0.49)r (0.63)i (0.78)z (0.93)J (1.27)H (1.67)K (2.22)L' (3.81)
Aλ [mag]0.0830.0660.0510.0410.0300.0790.0580.0420.0320.0230.0140.0090.0060.002

Galactic Extinction based on H I Column Densities and Galaxy Counts
(Burstein & Heiles; 1982AJ.....87.1165B) assuming Rv = 3.1:
AB = 0.000 mag
See Notes on Galactic Extinction for important caveats.

BASIC DATA for MRK 0421 (Back to INDEX)
Helio. Radial Velocity     :      9000 +/-       24 km/s      
Redshift                   :  0.030021 +/- 0.000080        1991RC3.9.C...0000d
Major Diameter (arcmin)    :   0.8
Minor Diameter (arcmin)    :   0.6
Magnitude and Filter       : 12.8V
Classifications            : S?; blazar     BLLAC

NOTE: This information is indicative only. With the exception of the
      redshift they are unreferenced and highly inhomogeneous as to
      their origin. The Radial Velocity (when available) is computed
      from the listed redshift. The remaining values are designed to
      orient the user with a quick-look, overall assessment of the
      general properties of the object in question. They are not
      averages nor are they standardized in any way.
Additional detailed measurements with references are also available by clicking below:
52 Redshift data point(s)      298 photometric data point(s)      10 Diameter data point(s)      

Calculated and Corrected Velocities
V (Heliocentric)           :    9000 +/-     24 km/s      1991RC3.9.C...0000d
V (Kinematic LSR)          :    9003 +/-     24 km/s      1986MNRAS.221.1023K
V (Galactocentric GSR)     :    9003 +/-     24 km/s      1991RC3.9.C...0000d
V (Local Group)            :    8987 +/-     24 km/s      1996AJ....111..794K
V (3K CMB)                 :    9261 +/-     30 km/s      1996ApJ...473..576F
V (Virgo Infall only)      :    9180 +/-     28 km/s      2000ApJ...529..786M
V (Virgo + GA only)        :    9350 +/-     30 km/s      2000ApJ...529..786M
V (Virgo + GA + Shapley)   :    9402 +/-     30 km/s      2000ApJ...529..786M

Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/-   5 km/sec/Mpc)
D (Galactocentric GSR)     :   123.3 +/-    8.6 Mpc      (m-M) = 35.46 +/- 0.15 mag
D (Local Group)            :   123.1 +/-    8.6 Mpc      (m-M) = 35.45 +/- 0.15 mag
D (3K CMB)                 :   126.9 +/-    8.9 Mpc      (m-M) = 35.52 +/- 0.15 mag
D (Virgo Infall only)      :   125.8 +/-    8.8 Mpc      (m-M) = 35.50 +/- 0.15 mag
D (Virgo + GA only)        :   128.1 +/-    9.0 Mpc      (m-M) = 35.54 +/- 0.15 mag
D (Virgo + GA + Shapley)   :   128.8 +/-    9.0 Mpc      (m-M) = 35.55 +/- 0.15 mag

Scale at Hubble Flow Distances
Scale (Galactocentric GSR) :     598 pc/arcsec =  0.598 kpc/arcsec =  35.87 kpc/arcmin =   2.15 Mpc/degree
Scale (Local Group)        :     597 pc/arcsec =  0.597 kpc/arcsec =  35.81 kpc/arcmin =   2.15 Mpc/degree
Scale (3K CMB)             :     615 pc/arcsec =  0.615 kpc/arcsec =  36.90 kpc/arcmin =   2.21 Mpc/degree
Scale (Virgo Infall only)  :     610 pc/arcsec =  0.610 kpc/arcsec =  36.58 kpc/arcmin =   2.19 Mpc/degree
Scale (Virgo + GA only)    :     621 pc/arcsec =  0.621 kpc/arcsec =  37.26 kpc/arcmin =   2.24 Mpc/degree
Scale(Virgo + GA + Shapley):     624 pc/arcsec =  0.624 kpc/arcsec =  37.46 kpc/arcmin =   2.25 Mpc/degree

To Search for Nearby Objects (Physical Companions): Enter Your Preferred Values and click on "Submit Environment Search" button
Search for Objects within +/-arcmin where 100 kpc = 2.669 arcmin and Selected Redshift, defined by the Velocity Range: from to km/sec where V(Heliocentric) = 9000 km/sec
Cosmology-Corrected Quantities [Ho = 73.00 km/sec/Mpc, Ωmatter = 0.27, Ωvacuum = 0.73] [Redshift 0.030893 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation] Luminosity Distance : 130 Mpc (m-M) = 35.57 mag Angular-Size Distance : 122 Mpc (m-M) = 35.44 mag Co-Moving Radial Distance : 126 Mpc (m-M) = 35.50 mag Co-Moving Tangential Dist. : 126 Mpc (m-M) = 35.50 mag Co-Moving Volume : 0.00839 Gpc^3 Light Travel-Time : 0.405 Gyr Age at Redshift 0.030893 : 12.894 Gyr Age of Universe : 13.299 Gyr Scale (Cosmology Corrected): 593 pc/arcsec = 0.593 kpc/arcsec = 35.57 kpc/arcmin = 2.13 Mpc/degree Surface Brightness Dimming : Flux Density per Unit Area = 0.88541; Magnitude per Unit Area = 0.1321 mag
To change Cosmological Input Parameters for Derived Quantities: Enter Your Preferred Values and click on "Submit Changed Hubble Parameters for this object" button
Correct Redshift To the Reference Frame defined by: as Input for Calculation of the Distances and Cosmology-Corrected Quantities


The brightest flux in each of the following spectral regions, when available:
Gamma-Ray (ν > 2E19 Hz); X-Ray (2E19 Hz > ν > 2E16 Hz); Ultraviolet (2E16 Hz > ν > 9E14 Hz); Visual (9E14 Hz > ν > 3E14 Hz);
Near-Infrared (3E14 Hz > ν > 6E13 Hz); Mid-Infrared (6E13 Hz > ν > 7.5E12 Hz); Far-Infrared (7.5E12 Hz > ν > 1E12 Hz);
Sub-Millimeter (1E12 Hz > ν > 3E11 Hz); Millimeter (3E11 Hz > ν > 3E10 Hz); Radio (3E10 Hz > ν).

Band Apparent Mag or Flux Refcode Absolute Mag or νLν [W] νLν [L(Bolometric)]
Gamma-Ray0.1-100 GeV (Fermi) 3.8E-10 erg/cm^2^/s 2014A&A...562A..64W 3.30E+37 [W] 8.57E+10
X-Ray2-10 keV (Swift) 2.56E-9 erg/cm^2^/s 2009ApJ...691L..13D 2.23E+38 [W] 5.79E+11
Ultraviolet1031 A (FUSE) 9.6E-14 erg/cm^2^/s/A 2009ApJS..182..378W 8.61E+36 [W] 2.24E+10
VisualR 8.31 mag 2008ApJS..175...97H-25.96 [mag] 1.54E+12
Near-InfraredH (MKO) 9.98 +/- 0.04 mag 1983MNRAS.202..397I-24.29 +/- 2.81 [mag] 4.10E+10 +/- 4.61E+10
Mid-InfraredN 108 +/- 24 milliJy 1983PASP...95..724S 2.78E+36 +/- 3.19E+36 [W] 7.24E+09 +/- 8.29E+09
Far-Infrared11 cm (NRAO) 730 +/- 115 milliJy 1980AJ.....85.1462K 1.71E+36 +/- 1.94E+36 [W] 4.45E+09 +/- 5.05E+09
Sub-Millimeter375 GHz 0.21 +/- 0.05 Jy 1994MNRAS.267..167G 6.83E+34 +/- 7.85E+34 [W] 1.78E+08 +/- 2.04E+08
Millimeter300 GHz (Hale) 0.6 +/- 0.6 Jy 1983ApJ...268...68L 1.56E+35 +/- 2.35E+35 [W] 4.06E+08 +/- 6.11E+08
Radio74 MHz (VLA) 1.91 +/- 0.30 Jy 2007AJ....134.1245C 1.22E+32 +/- 1.39E+32 [W] 3.18E+05 +/- 3.61E+05
NOTE: The above quantities are derived using an estimated Distance Modulus of (34.27 +/- 2.00) mag corresponding to
a Metric Distance of (85.150 +/- 67.670) Mpc using the Average NED-D value.
The quantities quoted above have not necessarily been corrected for foreground extinction, and no K-Corrections have been applied.

View details and SED for 298 Photometric data point(s) available in NED.


The largest diameters in the Visual and Near-Infrared spectral regions, when available:

Passband Apparent Major Axis
(2a) [arcsec]
Apparent Minor Axis
(2b) [arcsec]
Reference Level RefcodePhysical Major Axis
(2a) [kpc]
Physical Minor Axis
(2b) [kpc]
r (SDSS Isophotal) 58.7552.88118 25.0 mag arcsec^-2^ 2007SDSS6.C...0000:24.2521.83
K_s (2MASS "total") 68.9057.8885 Diameter for "total" magnitude 20032MASX.C.......:20032MASX.C.......:28.4423.89
NOTE: Physical diameters are derived using a scale of 0.4128 kpc/arcsec based on Average NED-D Metric Distance of (85.150 +/- 67.670) Mpc.
The quantities quoted above have not necessarily been corrected for foreground extinction.

View details for 10 Diameter data point(s) available in NED.

Resources for Object NamesSite/Service
Query SIMBAD by primary NED object name -- MRK 0421SIMBAD (CDS, Strasbourg, France)
FBS Catalogue of Markarian Galaxies -- MRK 0421VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Uppsala General Catalog -- UGC 06132 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Original Zwicky Catalog -- CGCG 184-050 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Query UZC Spectral Archive (60 arcsec search radius)Updated Zwicky Catalog Data (Harvard/SAO)
The Second Bologna Survey -- B2 1101+38 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
The Third Bologna Survey -- B3 1101+384 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
2MASS Extended Source Images (JHKs) -- 2MASX J11042732+3812320 NASA/IPAC Infrared Science Archive (IRSA)
SDSS Sky Server
Catalogue of Principal Galaxies -- PGC 033452 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Retrieve mean data from LEDA -- PGC 033452 The Lyon/Meudon Extragalactic Database (LEDA)
Original FIRST Source Catalog -- FIRST J110427.3+381231 Faint Images of the Radio Sky at Twenty-Centimeters
FIRST Survey, Version 1999Jul -- FIRST J110427.3+381231 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
NRAO/VLA Sky Survey (NVSS)
NRAO/VLA Sky Survey (NVSS)
Texas Survey of radio sources at 365MHz -- TXS 1101+384 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
GB6 catalog of radio sources -- GB6 J1104+3812 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- MRK 0421GALEX Mission Data Archive at MAST
Explore IRSA resources with RADAR (10 arcsec search radius) -- MRK 0421NASA/IPAC Infrared Science Archive (IRSA)
Resources for position 11h04m27.3s, +38d12m32s (J2000)Site/Service
Query Optical and UV Mission Archives (Default search radius)Multimission Archive at STScI (MAST)
Query High Energy Mission Archives (Default search radius)HEASARC (NASA/GSFC)
SDSS Sky Server
Query IRSA for WISE images (10 arcmin search radius)NASA/IPAC Infrared Science Archive (IRSA)
Band(s): Size:
NASA/IPAC Infrared Science Archive (IRSA)
Band(s): Size:
NASA/IPAC Infrared Science Archive (IRSA)
NASA/IPAC Infrared Science Archive (IRSA)
 Size:    Contours (PS)  JPEG  FITS File 
NRAO/VLA Sky Survey (NVSS)
    Size:     GIF     FITS File  
Faint Images of the Radio Sky at Twenty-Centimeters
The NRAO Data Archive System

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