NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2022-01-26 T20:30:58 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 4940


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 4940                       13h05m00.2s -47d14m13s G        5086  0.016965      13.1     ...    33     1   57   10     6   15     0 Retrieve Retrieve 1   

Detailed information for each object


Object No. 1 - NGC 4940

INDEX for NGC 4940
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
  • 57 Photometric data point(s) and SED   
  • Spectra   
    Redshift-Independent Distances
    33 Reference(s)   
    10 Position data point(s)
    6 Redshift data point(s)   
    15 Diameter data point(s)   
    1 Note(s)   
    ESO data    
    RC3 data    

    ESSENTIAL NOTE for NGC 4940 (Back to INDEX)
    N/A

    CROSS-IDENTIFICATIONS for NGC 4940 (Back to INDEX)
    Object Names Type Object Names Type
    NGC 4940G ISOSS J13049-4714 IrS
    ESO 269- G 042 G SGC 130207-4658.1 G
    ESO 130207-4658.1 G ESO-LV 2690420 G
    WISEA J130500.23-471412.3 IrS 2MIG 1806 G
    2MASX J13050026-4714129 IrS LDCE 0934 NED005 G
    2MASS J13045997-4714124 IrS HDCE 0757 NED001 G
    2MASS J13050024-4714127 IrS PGC 045235 G
    GALEXASC J130500.25-471411.0 UvS SUMSS J130500-471404 RadioS
    IRAS 13021-4658 IrS SUMSS J130500-471405 RadioS
    IRAS F13020-4657 IrS LGG 318:[G93] 003 G
    AKARI J1304598-471415 IrS [SLK2004] 0774 IrS
         

    COORDINATES for NGC 4940 (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)  195.528333  -46.969090  13h02m06.80s  -46d58m08.7s  1.25E+00  1.25E+00    0
    Equatorial (J2000.0)  196.251042  -47.236917  13h05m00.25s  -47d14m12.9s  1.25E+00  1.25E+00    0
    Ecliptic   (B1950.0)  214.887198  -36.722908                              1.25E+00  1.25E+00    0
    Ecliptic   (J2000.0)  215.582059  -36.727156                              1.25E+00  1.25E+00    0
    Galactic              305.321723   15.571931                              1.25E+00  1.25E+00    0
    SuperGalactic         162.948301   -9.805314                              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 4940 (Back to INDEX)
     N/A 

    CLASSIFICATIONS (TYPES, ATTRIBUTES) for NGC 4940 (Back to INDEX)
    TypeAs PublishedNED HomogenizedFlagReference Code
    HierarchyGRGroup member, radial-velocity confirmed...1993A&AS..100...47G
    Galaxy MorphologySaSa...1991RC3.9.C...0000d
    3 Detailed Classification(s)


    FOREGROUND GALACTIC EXTINCTION for NGC 4940 (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]0.5660.4730.3580.2830.1970.5540.4310.2980.2220.1650.0930.0590.0390.020
    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]0.7090.5630.4330.3490.2530.6730.4950.3590.2720.1930.1180.0750.0480.020


    Galactic Extinction based on H I Column Densities and Galaxy Counts
    (Burstein & Heiles; 1982AJ.....87.1165B) assuming Rv = 3.1:
    AB = 0.660 mag
    See Notes on Galactic Extinction for important caveats.

    BASIC DATA for NGC 4940 (Back to INDEX)
    Helio. Radial Velocity     :      5086 +/-       32 km/s      
    Redshift                   :  0.016965 +/- 0.000107        2003AJ....126.2268W
    Major Diameter (arcmin)    :   1.2
    Minor Diameter (arcmin)    :   1.0
    Magnitude and Filter       : 13.1 
    Classifications            : Sa                  
    
    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:
    6 Redshift data point(s)      57 photometric data point(s)      15 Diameter data point(s)      

    QUANTITIES DERIVED FROM REDSHIFT for NGC 4940 (Details)(Back to INDEX)
    Calculated and Corrected Velocities
    V (Heliocentric)           :    5086 +/-     32 km/s      2003AJ....126.2268W
    V (Kinematic LSR)          :    5082 +/-     32 km/s      1986MNRAS.221.1023K
    V (Galactocentric GSR)     :    4910 +/-     33 km/s      1991RC3.9.C...0000d
    V (Local Group)            :    4823 +/-     36 km/s      1996AJ....111..794K
    V (3K CMB)                 :    5339 +/-     37 km/s      1996ApJ...473..576F
    V (Virgo Infall only)      :    4966 +/-     37 km/s      2000ApJ...529..786M
    V (Virgo + GA only)        :    4380 +/-     55 km/s      2000ApJ...529..786M
    V (Virgo + GA + Shapley)   :    4351 +/-     55 km/s      2000ApJ...529..786M
    Note:Object in Great Attractor (Radius = 10 deg; Velocity Range = 2600-6600 km/sec)
     Great Attractor mean velocity (4380 km/sec) assigned.  See Local Velocity Field Model details
    
    Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/-   5 km/sec/Mpc)
    D (Galactocentric GSR)     :    67.3 +/-    4.7 Mpc      (m-M) = 34.14 +/- 0.15 mag
    D (Local Group)            :    66.1 +/-    4.7 Mpc      (m-M) = 34.10 +/- 0.15 mag
    D (3K CMB)                 :    73.1 +/-    5.1 Mpc      (m-M) = 34.32 +/- 0.15 mag
    D (Virgo Infall only)      :    68.0 +/-    4.8 Mpc      (m-M) = 34.16 +/- 0.15 mag
    D (Virgo + GA only)        :    60.0 +/-    4.3 Mpc      (m-M) = 33.89 +/- 0.15 mag
    D (Virgo + GA + Shapley)   :    59.6 +/-    4.2 Mpc      (m-M) = 33.88 +/- 0.15 mag
    
    Scale at Hubble Flow Distances
    Scale (Galactocentric GSR) :     326 pc/arcsec =  0.326 kpc/arcsec =  19.57 kpc/arcmin =   1.17 Mpc/degree
    Scale (Local Group)        :     320 pc/arcsec =  0.320 kpc/arcsec =  19.22 kpc/arcmin =   1.15 Mpc/degree
    Scale (3K CMB)             :     355 pc/arcsec =  0.355 kpc/arcsec =  21.28 kpc/arcmin =   1.28 Mpc/degree
    Scale (Virgo Infall only)  :     330 pc/arcsec =  0.330 kpc/arcsec =  19.79 kpc/arcmin =   1.19 Mpc/degree
    Scale (Virgo + GA only)    :     291 pc/arcsec =  0.291 kpc/arcsec =  17.45 kpc/arcmin =   1.05 Mpc/degree
    Scale(Virgo + GA + Shapley):     289 pc/arcsec =  0.289 kpc/arcsec =  17.34 kpc/arcmin =   1.04 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 = 5.768 arcmin and Selected Redshift, defined by the Velocity Range: from to km/sec where V(Heliocentric) = 5086 km/sec
    Cosmology-Corrected Quantities [Ho = 73.00 km/sec/Mpc, Ωmatter = 0.27, Ωvacuum = 0.73] [Redshift 0.017810 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation] Luminosity Distance : 74.2 Mpc (m-M) = 34.35 mag Angular-Size Distance : 71.6 Mpc (m-M) = 34.27 mag Co-Moving Radial Distance : 72.9 Mpc (m-M) = 34.31 mag Co-Moving Tangential Dist. : 72.9 Mpc (m-M) = 34.31 mag Co-Moving Volume : 0.00162 Gpc^3 Light Travel-Time : 0.236 Gyr Age at Redshift 0.017810 : 13.063 Gyr Age of Universe : 13.299 Gyr Scale (Cosmology Corrected): 347 pc/arcsec = 0.347 kpc/arcsec = 20.83 kpc/arcmin = 1.25 Mpc/degree Surface Brightness Dimming : Flux Density per Unit Area = 0.93182; Magnitude per Unit Area = 0.07667 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 4940 (Back to INDEX)
     N/A 

    QUICK-LOOK ANGULAR & PHYSICAL DIAMETERS for NGC 4940 (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-LV "Quick Blue" IIa-O 110.9295.397 90% total B light 1989ESOLV.C...0000L32.0527.56
    K_s (2MASS "total") 76.1071.5350 Diameter for "total" magnitude 20032MASX.C.......:20032MASX.C.......:21.9920.67
    NOTE: At z <= 0.5, physical diameters are derived using a Scale at the Hubble Flow Distance (Virgo + GA + Shapley) of 0.289 kpc/arcsec.
    The quantities quoted above have not necessarily been corrected for foreground extinction.

    View details for 15 Diameter data point(s) available in NED.

    EXTERNAL ARCHIVES AND SERVICES for NGC 4940 Help (Back to INDEX)
    Resources for Object NamesSite/Service
    Query SIMBAD by primary NED object name -- NGC 4940SIMBAD (CDS, Strasbourg, France)
    Revised New General Catalogue -- NGC 4940VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    ESO/Uppsala Survey -- ESO 269- G 042 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    2MASS Extended Source Images (JHKs) -- 2MASX J13050026-4714129 NASA/IPAC Infrared Science Archive (IRSA)
    IRAS Faint Source Catalog -- IRAS F13020-4657 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    The ESO-LV catalog-- ESO-LV 2690420 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    Catalogue of Principal Galaxies -- PGC 045235 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    Retrieve mean data from LEDA -- PGC 045235 The Lyon/Meudon Extragalactic Database (LEDA)
    Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- NGC 4940GALEX Mission Data Archive at MAST
    Explore IRSA resources with RADAR (10 arcsec search radius) -- NGC 4940NASA/IPAC Infrared Science Archive (IRSA)
    Resources for position 13h05m00.2s, -47d14m13s (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)
    The NRAO Data Archive System

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