NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2021-12-02 T17:03:06 PST
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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 NGC 4742


1 objects found in NED.    

SOURCE LIST

 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    NGC 4742                       12h51m48.0s -10d27m17s G        1270  0.004236      12.83    ...   222     5   83   24    12    7     0 Retrieve Retrieve 1   

Detailed information for each object


Object No. 1 - NGC 4742

INDEX for NGC 4742
Essential Data (jump to sub-section of this query report):

   Essential Note    
   Cross-IDs    
   Coordinates    
   Basic Data   
   Quantities Derived from Redshift    
   Redshift-Independent Distances
   Quick-Look Photometry and Luminosities
   Quick-Look Angular and Physical Sizes
   Classifications
   Foreground Galactic Extinction    
   External Services
Detailed Data (NED queries):
  • Images
  • 83 Photometric data point(s) and SED   
  • Spectra   
    Redshift-Independent Distances
    222 Reference(s)   
    24 Position data point(s)
    12 Redshift data point(s)   
    7 Diameter data point(s)   
    5 Note(s)   
    RC3 data    

    ESSENTIAL NOTE for NGC 4742 (Back to INDEX)
    N/A

    CROSS-IDENTIFICATIONS for NGC 4742 (Back to INDEX)
    Object Names Type Object Names Type
    NGC 4742G PGC1 0042407 NED002 G
    UGCA 303 G GSC 5538 00168 G
    MCG -02-33-032 G PGC 043594 G
    WISEA J125148.03-102717.2 IrS 2CXO J125148.0-102717 XrayS
    2MASX J12514803-1027172 IrS CXOU J125148.0-102717 XrayS
    2MASS J12514803-1027171 IrS CXOGSG J125148.0-102717 XrayS
    GALEXASC J125148.10-102716.4 UvS LGG 307:[G93] 008 G
    CGS 423 G [GCM2012] 56 XrayS
    LDCE 0904 NED264 G [DF2016] 1252 G
    HDCE 0740 NED008 G NGC 4742:[WLQ2016] X0001 XrayS
    USGC S190 NED17 G    

    COORDINATES for NGC 4742 (Back to INDEX)

    Position Reference:20032MASX.C.......:

    Reference    Frame     Longitude    Latitude        RA           DEC      Uncertainty Ellipse (arcsec)
                           (degrees)   (degrees)                              Semimajor Semiminor  PA(deg)
    Equatorial (B1950.0)  192.298400  -10.183041  12h49m11.61s  -10d10m58.9s  1.25E+00  1.25E+00    0
    Equatorial (J2000.0)  192.950167  -10.454722  12h51m48.04s  -10d27m17.0s  1.25E+00  1.25E+00    0
    Ecliptic   (B1950.0)  195.277870   -4.518551                              1.25E+00  1.25E+00    0
    Ecliptic   (J2000.0)  195.975952   -4.520830                              1.25E+00  1.25E+00    0
    Galactic              303.078106   52.416930                              1.25E+00  1.25E+00    0
    SuperGalactic         126.312516   -3.578309                              1.25E+00  1.25E+00    0
    
    Additional detailed measurements with references are also available by clicking below:
    24 Position data point(s)

    REDSHIFT-INDEPENDENT DISTANCES for NGC 4742 (Back to INDEX)

    9 Distances found in NED View 9 Individual Distance Measurement(s) for NGC 4742

    Summary Statistics computed by NED from 9 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.


    NGC 4742 Distance Modulus
    (mag)
    Metric Distance
    (Mpc)
    Mean 30.53 13.563
    Std. Dev. 0.82 4.975
    Min. 29.12 6.670
    Max. 31.83 23.200
    Median 30.95 15.500

    CLASSIFICATIONS (TYPES, ATTRIBUTES) for NGC 4742 (Back to INDEX)
    TypeAs PublishedNED HomogenizedFlagReference Code
    HierarchyGRGroup member, radial-velocity confirmed...1992A&AS...93..211F
    Galaxy MorphologyE4:E4?...1991RC3.9.C...0000d
    Distance IndicatorTully estTully est...1988NBGC.C....0000T
    20 Detailed Classification(s)


    FOREGROUND GALACTIC EXTINCTION for NGC 4742 (Back to INDEX)
    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]0.1770.1480.1120.0890.0620.1730.1350.0930.0690.0520.0290.0180.0120.006
    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]0.2210.1750.1350.1090.0790.2090.1540.1120.0850.0600.0370.0230.0150.006


    Galactic Extinction based on H I Column Densities and Galaxy Counts
    (Burstein & Heiles; 1982AJ.....87.1165B) assuming Rv = 3.1:
    AB = 0.090 mag
    See Notes on Galactic Extinction for important caveats.

    BASIC DATA for NGC 4742 (Back to INDEX)
    Helio. Radial Velocity     :      1270 +/-       15 km/s      
    Redshift                   :  0.004236 +/- 0.000050        1998AJ....116....1D
    Major Diameter (arcmin)    :   2.6
    Minor Diameter (arcmin)    :   1.5
    Magnitude and Filter       : 12.83
    Classifications            : E4:                 
    
    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:
    12 Redshift data point(s)      83 photometric data point(s)      7 Diameter data point(s)      

    QUANTITIES DERIVED FROM REDSHIFT for NGC 4742 (Details)(Back to INDEX)
    Calculated and Corrected Velocities
    V (Heliocentric)           :    1270 +/-     15 km/s      1998AJ....116....1D
    V (Kinematic LSR)          :    1272 +/-     15 km/s      1986MNRAS.221.1023K
    V (Galactocentric GSR)     :    1160 +/-     16 km/s      1991RC3.9.C...0000d
    V (Local Group)            :    1086 +/-     19 km/s      1996AJ....111..794K
    V (3K CMB)                 :    1606 +/-     28 km/s      1996ApJ...473..576F
    V (Virgo Infall only)      :    1481 +/-     33 km/s      2000ApJ...529..786M
    V (Virgo + GA only)        :    1462 +/-     33 km/s      2000ApJ...529..786M
    V (Virgo + GA + Shapley)   :    1455 +/-     33 km/s      2000ApJ...529..786M
    
    Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/-   5 km/sec/Mpc)
    D (Galactocentric GSR)     :    15.9 +/-    1.1 Mpc      (m-M) = 31.01 +/- 0.15 mag
    D (Local Group)            :    14.9 +/-    1.1 Mpc      (m-M) = 30.86 +/- 0.15 mag
    D (3K CMB)                 :    22.0 +/-    1.6 Mpc      (m-M) = 31.71 +/- 0.15 mag
    D (Virgo Infall only)      :    20.3 +/-    1.5 Mpc      (m-M) = 31.54 +/- 0.15 mag
    D (Virgo + GA only)        :    20.0 +/-    1.4 Mpc      (m-M) = 31.51 +/- 0.15 mag
    D (Virgo + GA + Shapley)   :    19.9 +/-    1.4 Mpc      (m-M) = 31.50 +/- 0.15 mag
    
    Scale at Hubble Flow Distances
    Scale (Galactocentric GSR) :      77 pc/arcsec =  0.077 kpc/arcsec =   4.62 kpc/arcmin =   0.28 Mpc/degree
    Scale (Local Group)        :      72 pc/arcsec =  0.072 kpc/arcsec =   4.33 kpc/arcmin =   0.26 Mpc/degree
    Scale (3K CMB)             :     107 pc/arcsec =  0.107 kpc/arcsec =   6.40 kpc/arcmin =   0.38 Mpc/degree
    Scale (Virgo Infall only)  :      98 pc/arcsec =  0.098 kpc/arcsec =   5.90 kpc/arcmin =   0.35 Mpc/degree
    Scale (Virgo + GA only)    :      97 pc/arcsec =  0.097 kpc/arcsec =   5.82 kpc/arcmin =   0.35 Mpc/degree
    Scale(Virgo + GA + Shapley):      97 pc/arcsec =  0.097 kpc/arcsec =   5.80 kpc/arcmin =   0.35 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 = 17.248 arcmin and Selected Redshift, defined by the Velocity Range: from to km/sec where V(Heliocentric) = 1270 km/sec
    Cosmology-Corrected Quantities [Ho = 73.00 km/sec/Mpc, Ωmatter = 0.27, Ωvacuum = 0.73] [Redshift 0.005359 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation] Luminosity Distance : 22.1 Mpc (m-M) = 31.72 mag Angular-Size Distance : 21.9 Mpc (m-M) = 31.70 mag Co-Moving Radial Distance : 22 Mpc (m-M) = 31.71 mag Co-Moving Tangential Dist. : 22 Mpc (m-M) = 31.71 mag Co-Moving Volume : 4.45e-05 Gpc^3 Light Travel-Time : 0.072 Gyr Age at Redshift 0.005359 : 13.227 Gyr Age of Universe : 13.299 Gyr Scale (Cosmology Corrected): 106 pc/arcsec = 0.106 kpc/arcsec = 6.36 kpc/arcmin = 0.38 Mpc/degree Surface Brightness Dimming : Flux Density per Unit Area = 0.97885; Magnitude per Unit Area = 0.02321 mag
    To change Cosmological Input Parameters for Derived Quantities: Enter Your Preferred Values and click on "Submit Changed Hubble Parameters for this object" button
    HoΩmatterΩvacuum     
    Correct Redshift To the Reference Frame defined by: as Input for Calculation of the Distances and Cosmology-Corrected Quantities

    QUICK-LOOK PHOTOMETRY and LUMINOSITIES for NGC 4742 (Back to INDEX)
     N/A 

    QUICK-LOOK ANGULAR & PHYSICAL DIAMETERS for NGC 4742 (Back to INDEX)

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

    Passband Apparent Major Axis
    (2a) [arcsec]
    Apparent Minor Axis
    (2b) [arcsec]
    PA
    [degrees]
    (J2000.0)
    Reference Level RefcodePhysical Major Axis
    (2a) [kpc]
    Physical Minor Axis
    (2b) [kpc]
    RC3 D_25; R_25 (blue) 157.8088.3774 25.0 B-mag arcsec^-2^ 1991RC3.9.C...0000d10.385.81
    K_s (2MASS "total") 141.2096.0280 Diameter for "total" magnitude 20032MASX.C.......:20032MASX.C.......:9.286.31
    NOTE: Physical diameters are derived using a scale of 0.0658 kpc/arcsec based on Average NED-D Metric Distance of (13.563 +/- 4.975) Mpc.
    The quantities quoted above have not necessarily been corrected for foreground extinction.

    View details for 7 Diameter data point(s) available in NED.

    EXTERNAL ARCHIVES AND SERVICES for NGC 4742 Help (Back to INDEX)
    Resources for Object NamesSite/Service
    Query SIMBAD by primary NED object name -- NGC 4742SIMBAD (CDS, Strasbourg, France)
    Revised New General Catalogue -- NGC 4742VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    Morphological Catalog of Galaxies -- MCG -02-33-032 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    2MASS Extended Source Images (JHKs) -- 2MASX J12514803-1027172 NASA/IPAC Infrared Science Archive (IRSA)
    Catalogue of Principal Galaxies -- PGC 043594 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    Retrieve mean data from LEDA -- PGC 043594 The Lyon/Meudon Extragalactic Database (LEDA)
    Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- NGC 4742GALEX Mission Data Archive at MAST
    Explore IRSA resources with RADAR (10 arcsec search radius) -- NGC 4742NASA/IPAC Infrared Science Archive (IRSA)
    Resources for position 12h51m48.0s, -10d27m17s (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)
    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)
    The NRAO Data Archive System

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