NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2018-11-17 T16:16:55 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 7424


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 7424                       22h57m18.4s -41d04m14s G         939  0.003132      10.96    ...   201     6   56   10    13   19     0 Retrieve Retrieve 1   

Detailed information for each object


Object No. 1 - NGC 7424

INDEX for NGC 7424
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
  • 56 Photometric data point(s) and SED   
  • Spectra   
    Redshift-Independent Distances
    201 Reference(s)   
    10 Position data point(s)
    13 Redshift data point(s)   
    19 Diameter data point(s)   
    6 Note(s)   
    ESO data    
    RC3 data    

    ESSENTIAL NOTE for NGC 7424 (Back to INDEX)
    Extended HIPASS source                                                          
    

    CROSS-IDENTIFICATIONS for NGC 7424 (Back to INDEX)
    Object Names Type Object Names Type
    NGC 7424G ESO-LV 3460190 G
    ESO 346- G 019 G 6dF J2257183-410414 G
    ESO 225428-4120.2 G 6dF J2257184-410414 G
    MCG -07-47-008 G LDCE 1547 NED008 G
    2MASX J22571836-4104140 IrS HDCE 1226 NED001 G
    2MASS J22571841-4104145 IrS SSRS GROUP 40 NED13 G
    IRAS 22544-4120 IrS APMBGC 346+036+065 G
    IRAS F22544-4120 IrS HIPASS J2257-41 RadioS
    CGS 592 G PGC 070096 G
    SGC 225428-4120.2 G NGC 7424:[SKB2006] 06 XrayS
         

    COORDINATES for NGC 7424 (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)  343.618502  -41.338235  22h54m28.44s  -41d20m17.6s  1.25E+00  1.25E+00    0
    Equatorial (J2000.0)  344.326542  -41.070583  22h57m18.37s  -41d04m14.1s  1.25E+00  1.25E+00    0
    Ecliptic   (B1950.0)  327.603952  -31.447427                              1.25E+00  1.25E+00    0
    Ecliptic   (J2000.0)  328.306134  -31.450370                              1.25E+00  1.25E+00    0
    Galactic              354.798841  -62.753460                              1.25E+00  1.25E+00    0
    SuperGalactic         248.314823   10.293684                              1.25E+00  1.25E+00    0
    
    Additional detailed measurements with references are also available by clicking below:
    10 Position data point(s)

    REDSHIFT-INDEPENDENT DISTANCES for NGC 7424 (Back to INDEX)

    5 Distances found in NED View 5 Individual Distance Measurement(s) for NGC 7424

    Summary Statistics computed by NED from 5 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 7424 Distance Modulus
    (mag)
    Metric Distance
    (Mpc)
    Mean 29.81 9.312
    Std. Dev. 0.44 1.787
    Min. 29.12 6.670
    Max. 30.30 11.500
    Median 29.97 9.860

    CLASSIFICATIONS (TYPES, ATTRIBUTES) for NGC 7424 (Back to INDEX)
    TypeAs PublishedNED HomogenizedFlagReference Code
    HierarchyG?Possible group member...1978AJ.....83..904S
    KinematicsHI line widthHI line width...1989MNRAS.236..171D
    Luminosity Class6.0LC III-IV...1991RC3.9.C...0000d
    Galaxy MorphologySAB(rs)cdSAB(rs)cd...1991RC3.9.C...0000d
    Distance IndicatorTully-FisherTully-Fisher...1988NBGC.C....0000T
    36 Detailed Classification(s)


    FOREGROUND GALACTIC EXTINCTION for NGC 7424 (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]0.0460.0390.0290.0230.0160.0450.0350.0240.0180.0130.0080.0050.0030.002
    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]0.0580.0460.0350.0290.0210.0550.0400.0290.0220.0160.0100.0060.0040.002

    See Notes on Galactic Extinction for important caveats.

    BASIC DATA for NGC 7424 (Back to INDEX)
    Helio. Radial Velocity     :       939 +/-        2 km/s      
    Redshift                   :  0.003132 +/- 0.000007        2004AJ....128...16K
    Major Diameter (arcmin)    :   9.5
    Minor Diameter (arcmin)    :   8.1
    Magnitude and Filter       : 10.96
    Classifications            : SAB(rs)cd           
    
    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:
    13 Redshift data point(s)      56 photometric data point(s)      19 Diameter data point(s)      

    QUANTITIES DERIVED FROM REDSHIFT for NGC 7424 (Details)(Back to INDEX)
    Calculated and Corrected Velocities
    V (Heliocentric)           :     939 +/-      2 km/s      2004AJ....128...16K
    V (Kinematic LSR)          :     936 +/-      2 km/s      1986MNRAS.221.1023K
    V (Galactocentric GSR)     :     927 +/-      2 km/s      1991RC3.9.C...0000d
    V (Local Group)            :     938 +/-      2 km/s      1996AJ....111..794K
    V (3K CMB)                 :     692 +/-     17 km/s      1996ApJ...473..576F
    V (Virgo Infall only)      :     875 +/-      5 km/s      2000ApJ...529..786M
    V (Virgo + GA only)        :     953 +/-      7 km/s      2000ApJ...529..786M
    V (Virgo + GA + Shapley)   :     959 +/-      7 km/s      2000ApJ...529..786M
    
    Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/-   5 km/sec/Mpc)
    D (Galactocentric GSR)     :    12.7 +/-    0.9 Mpc      (m-M) = 30.52 +/- 0.15 mag
    D (Local Group)            :    12.8 +/-    0.9 Mpc      (m-M) = 30.54 +/- 0.15 mag
    D (3K CMB)                 :     9.5 +/-    0.7 Mpc      (m-M) = 29.88 +/- 0.16 mag
    D (Virgo Infall only)      :    12.0 +/-    0.8 Mpc      (m-M) = 30.39 +/- 0.15 mag
    D (Virgo + GA only)        :    13.1 +/-    0.9 Mpc      (m-M) = 30.58 +/- 0.15 mag
    D (Virgo + GA + Shapley)   :    13.1 +/-    0.9 Mpc      (m-M) = 30.59 +/- 0.15 mag
    
    Scale at Hubble Flow Distances
    Scale (Galactocentric GSR) :      62 pc/arcsec =  0.062 kpc/arcsec =   3.69 kpc/arcmin =   0.22 Mpc/degree
    Scale (Local Group)        :      62 pc/arcsec =  0.062 kpc/arcsec =   3.74 kpc/arcmin =   0.22 Mpc/degree
    Scale (3K CMB)             :      46 pc/arcsec =  0.046 kpc/arcsec =   2.76 kpc/arcmin =   0.17 Mpc/degree
    Scale (Virgo Infall only)  :      58 pc/arcsec =  0.058 kpc/arcsec =   3.49 kpc/arcmin =   0.21 Mpc/degree
    Scale (Virgo + GA only)    :      63 pc/arcsec =  0.063 kpc/arcsec =   3.80 kpc/arcmin =   0.23 Mpc/degree
    Scale(Virgo + GA + Shapley):      64 pc/arcsec =  0.064 kpc/arcsec =   3.82 kpc/arcmin =   0.23 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 = 26.174 arcmin and Selected Redshift, defined by the Velocity Range: from to km/sec where V(Heliocentric) = 939 km/sec
    Cosmology-Corrected Quantities [Ho = 73.00 km/sec/Mpc, Ωmatter = 0.27, Ωvacuum = 0.73] [Redshift 0.002307 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation] Luminosity Distance : 9.49 Mpc (m-M) = 29.89 mag Angular-Size Distance : 9.45 Mpc (m-M) = 29.88 mag Co-Moving Radial Distance : 9.47 Mpc (m-M) = 29.88 mag Co-Moving Tangential Dist. : 9.47 Mpc (m-M) = 29.88 mag Co-Moving Volume : 3.56e-06 Gpc^3 Light Travel-Time : 0.031 Gyr Age at Redshift 0.002307 : 13.268 Gyr Age of Universe : 13.299 Gyr Scale (Cosmology Corrected): 46 pc/arcsec = 0.046 kpc/arcsec = 2.75 kpc/arcmin = 0.16 Mpc/degree Surface Brightness Dimming : Flux Density per Unit Area = 0.99083; Magnitude per Unit Area = 0.01001 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 7424 (Back to INDEX)
     N/A 

    QUICK-LOOK ANGULAR & PHYSICAL DIAMETERS for NGC 7424 (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]
    ESO-Uppsala "Quick Blue" IIa-O960.00960.00... About 25.5 B-mag arcsec^-2^ 1982ESOU..C...0000L43.3443.34
    K_s (LGA/2MASS "total") 230.20149.63125 Diameter for "total" magnitude 2003AJ....125..525J2003AJ....125..525J10.396.76
    NOTE: Physical diameters are derived using a scale of 0.0451 kpc/arcsec based on Average NED-D Metric Distance of (9.312 +/- 1.787) Mpc.
    The quantities quoted above have not necessarily been corrected for foreground extinction.

    View details for 19 Diameter data point(s) available in NED.

    EXTERNAL ARCHIVES AND SERVICES for NGC 7424 Help (Back to INDEX)
    Resources for Object NamesSite/Service
    Query SIMBAD by primary NED object name -- NGC 7424SIMBAD (CDS, Strasbourg, France)
    Revised New General Catalogue -- NGC 7424VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    ESO/Uppsala Survey -- ESO 346- G 019 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    Morphological Catalog of Galaxies -- MCG -07-47-008 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    2MASS Extended Source Images (JHKs) -- 2MASX J22571836-4104140 NASA/IPAC Infrared Science Archive (IRSA)
    IRAS Point Source Catalog -- IRAS 22544-4120 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    IRAS Faint Source Catalog -- IRAS F22544-4120 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    The ESO-LV catalog-- ESO-LV 3460190 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    Query 6dF Galaxy Redshift Survey -- 6dF J2257183-410414 6dF Galaxy Redshift Survey
    Query 6dF Galaxy Redshift Survey -- 6dF J2257184-410414 6dF Galaxy Redshift Survey
    Catalogue of Principal Galaxies -- PGC 070096 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    Retrieve mean data from LEDA -- PGC 070096 The Lyon/Meudon Extragalactic Database (LEDA)
    Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- NGC 7424GALEX Mission Data Archive at MAST
    Explore IRSA resources with RADAR (10 arcsec search radius) -- NGC 7424NASA/IPAC Infrared Science Archive (IRSA)
    Resources for position 22h57m18.4s, -41d04m14s (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)
    Explore resources with DataScope (15 arcmin 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)
    The NRAO Data Archive System

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