NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-04-19 T20:04:27 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 UGC 06863


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 3947                       11h53m20.3s +20d45m06s G        6197  0.020671      13.88    ...   128     2   71   20    17   12     0 Retrieve Retrieve 1   

Detailed information for each object


Object No. 1 - NGC 3947

INDEX for NGC 3947
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
  • 71 Photometric data point(s) and SED   
  • Spectra   
    Redshift-Independent Distances
    128 Reference(s)   
    20 Position data point(s)
    17 Redshift data point(s)   
    12 Diameter data point(s)   
    2 Note(s)   
    UGC data    
    RC3 data    

    ESSENTIAL NOTE for NGC 3947 (Back to INDEX)
    N/A

    CROSS-IDENTIFICATIONS for NGC 3947 (Back to INDEX)
    Object Names Type Object Names Type
    NGC 3947G LDCE 0836 NED057 G
    UGC 06863 G HDCE 0678 NED008 G
    CGCG 127-095 G USGC U427 NED04 G
    CGCG 1150.8+2102 G ASK 633179.0 G
    MCG +04-28-088 G ECO 03152 G
    2MASX J11532031+2045055 IrS NSA 114068 G
    2MASXi J1153203+204505 IrS PGC 037264 G
    2MASS J11532030+2045061 IrS UZC J115320.3+204506 G
    SDSS J115320.32+204506.1 G NVSS J115320+204505 RadioS
    GALEXASC J115320.32+204505.7 UvS [M98j] 144 NED15 G
    IRAS 11507+2101 IrS [TTL2012] 156005 G
    IRAS F11507+2101 IrS SDSS J115320.31+204506.1 G
    WBL 363-004 G    

    COORDINATES for NGC 3947 (Back to INDEX)

    Position Reference:2007SDSS6.C...0000:

    Reference    Frame     Longitude    Latitude        RA           DEC      Uncertainty Ellipse (arcsec)
                           (degrees)   (degrees)                              Semimajor Semiminor  PA(deg)
    Equatorial (B1950.0)  177.690344   21.029916 11h50m45.682s +21d01m47.70s  5.00E-01  5.00E-01    0
    Equatorial (J2000.0)  178.334670   20.751718 11h53m20.321s +20d45m06.18s  5.00E-01  5.00E-01    0
    Ecliptic   (B1950.0)  169.236614   18.316176                              5.00E-01  5.00E-01    0
    Ecliptic   (J2000.0)  169.937264   18.316834                              5.00E-01  5.00E-01    0
    Galactic              235.492313   75.287886                              5.00E-01  5.00E-01    0
    SuperGalactic          92.077790   -8.245494                              5.00E-01  5.00E-01    0
    
    Additional detailed measurements with references are also available by clicking below:
    20 Position data point(s)

    REDSHIFT-INDEPENDENT DISTANCES for NGC 3947 (Back to INDEX)

    5 Distances found in NED View 5 Individual Distance Measurement(s) for NGC 3947

    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 3947 Distance Modulus
    (mag)
    Metric Distance
    (Mpc)
    Mean 34.70 87.280
    Std. Dev. 0.21 8.846
    Min. 34.57 82.000
    Max. 35.07 103.000
    Median 34.62 84.000

    CLASSIFICATIONS (TYPES, ATTRIBUTES) for NGC 3947 (Back to INDEX)
    TypeAs PublishedNED HomogenizedFlagReference Code
    HierarchyRGin a radial-velocity based grouping...1998Afz....41..308M
    KinematicsHI line widthHI line width...1987ApJS...63..515L
    Luminosity Class3.0LC II...1991RC3.9.C...0000d
    Galaxy Morphology(R)SB(rs)b(R)SB(rs)b...1991RC3.9.C...0000d
    Distance IndicatorTully-FisherTully-Fisher...2009ApJS..182..474S
    17 Detailed Classification(s)


    FOREGROUND GALACTIC EXTINCTION for NGC 3947 (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]0.1770.1480.1120.0880.0610.1730.1350.0930.0690.0510.0290.0180.0120.006
    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]0.2220.1760.1350.1090.0790.2110.1550.1120.0850.0600.0370.0240.0150.006


    Galactic Extinction based on H I Column Densities and Galaxy Counts
    (Burstein & Heiles; 1982AJ.....87.1165B) assuming Rv = 3.1:
    AB = 0.210 mag
    See Notes on Galactic Extinction for important caveats.

    BASIC DATA for NGC 3947 (Back to INDEX)
    Helio. Radial Velocity     :      6197 +/-        5 km/s      
    Redshift                   :  0.020671 +/- 0.000017        1991RC3.9.C...0000d
    Major Diameter (arcmin)    :   1.4
    Minor Diameter (arcmin)    :   1.2
    Magnitude and Filter       : 13.88
    Classifications            : (R)SB(rs)b     HII  
    
    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:
    17 Redshift data point(s)      71 photometric data point(s)      12 Diameter data point(s)      

    QUANTITIES DERIVED FROM REDSHIFT for NGC 3947 (Details)(Back to INDEX)
    Calculated and Corrected Velocities
    V (Heliocentric)           :    6197 +/-      5 km/s      1991RC3.9.C...0000d
    V (Kinematic LSR)          :    6200 +/-      5 km/s      1986MNRAS.221.1023K
    V (Galactocentric GSR)     :    6154 +/-      5 km/s      1991RC3.9.C...0000d
    V (Local Group)            :    6112 +/-      7 km/s      1996AJ....111..794K
    V (3K CMB)                 :    6520 +/-     23 km/s      1996ApJ...473..576F
    V (Virgo Infall only)      :    6345 +/-     18 km/s      2000ApJ...529..786M
    V (Virgo + GA only)        :    6706 +/-     31 km/s      2000ApJ...529..786M
    V (Virgo + GA + Shapley)   :    6747 +/-     31 km/s      2000ApJ...529..786M
    
    Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/-   5 km/sec/Mpc)
    D (Galactocentric GSR)     :    84.3 +/-    5.9 Mpc      (m-M) = 34.63 +/- 0.15 mag
    D (Local Group)            :    83.7 +/-    5.9 Mpc      (m-M) = 34.61 +/- 0.15 mag
    D (3K CMB)                 :    89.3 +/-    6.3 Mpc      (m-M) = 34.75 +/- 0.15 mag
    D (Virgo Infall only)      :    86.9 +/-    6.1 Mpc      (m-M) = 34.70 +/- 0.15 mag
    D (Virgo + GA only)        :    91.9 +/-    6.4 Mpc      (m-M) = 34.82 +/- 0.15 mag
    D (Virgo + GA + Shapley)   :    92.4 +/-    6.5 Mpc      (m-M) = 34.83 +/- 0.15 mag
    
    Scale at Hubble Flow Distances
    Scale (Galactocentric GSR) :     409 pc/arcsec =  0.409 kpc/arcsec =  24.52 kpc/arcmin =   1.47 Mpc/degree
    Scale (Local Group)        :     406 pc/arcsec =  0.406 kpc/arcsec =  24.36 kpc/arcmin =   1.46 Mpc/degree
    Scale (3K CMB)             :     433 pc/arcsec =  0.433 kpc/arcsec =  25.98 kpc/arcmin =   1.56 Mpc/degree
    Scale (Virgo Infall only)  :     421 pc/arcsec =  0.421 kpc/arcsec =  25.28 kpc/arcmin =   1.52 Mpc/degree
    Scale (Virgo + GA only)    :     445 pc/arcsec =  0.445 kpc/arcsec =  26.72 kpc/arcmin =   1.60 Mpc/degree
    Scale(Virgo + GA + Shapley):     448 pc/arcsec =  0.448 kpc/arcsec =  26.88 kpc/arcmin =   1.61 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 = 3.720 arcmin and Selected Redshift, defined by the Velocity Range: from to km/sec where V(Heliocentric) = 6197 km/sec
    Cosmology-Corrected Quantities [Ho = 73.00 km/sec/Mpc, Ωmatter = 0.27, Ωvacuum = 0.73] [Redshift 0.021748 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation] Luminosity Distance : 90.9 Mpc (m-M) = 34.79 mag Angular-Size Distance : 87 Mpc (m-M) = 34.70 mag Co-Moving Radial Distance : 88.9 Mpc (m-M) = 34.74 mag Co-Moving Tangential Dist. : 88.9 Mpc (m-M) = 34.74 mag Co-Moving Volume : 0.00294 Gpc^3 Light Travel-Time : 0.287 Gyr Age at Redshift 0.021748 : 13.012 Gyr Age of Universe : 13.299 Gyr Scale (Cosmology Corrected): 422 pc/arcsec = 0.422 kpc/arcsec = 25.31 kpc/arcmin = 1.52 Mpc/degree Surface Brightness Dimming : Flux Density per Unit Area = 0.91754; Magnitude per Unit Area = 0.09344 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 3947 (Back to INDEX)

    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).

    Spectral
    Region
    Band Apparent Mag or Flux Refcode Absolute Mag or νLν [W] νLν [L(Bolometric)]
    UltravioletNUV (GALEX) AB 16.1317 +/- 0.0218950 mag 2012GASC..C...0000S-18.57 +/- 0.23 [mag] 3.91E+09 +/- 3.64E+08
    VisualI (Cousins) (I_T) 11.76 +/- 0.05 mag 1992ApJS...81...35H-22.94 +/- 0.23 [mag] 4.54E+10 +/- 4.64E+09
    Near-InfraredH^0^_T(25)_ 10.32 +/- 0.15 mag 1996ApL&C..35....1G-24.38 +/- 0.27 [mag] 3.56E+10 +/- 6.19E+09
    Mid-Infrared25 microns (IRAS) 1.637E-01 +/- 31 % Jy 1990IRASF.C...0000M 1.79E+36 +/- 3.83E+35 [W] 4.67E+09 +/- 9.96E+08
    Far-Infrared100 microns (IRAS) 2.271E+00 +/- 9 % Jy 1990IRASF.C...0000M 6.21E+36 +/- 7.92E+35 [W] 1.61E+10 +/- 2.06E+09
    Radio2380 MHz 10. +/- 5. milliJy 1978ApJS...36...53D 2.17E+31 +/- 1.10E+31 [W] 5.64E+04 +/- 2.87E+04
    NOTE: The above quantities are derived using an estimated Distance Modulus of (34.70 +/- 0.21) mag corresponding to
    a Metric Distance of (87.280 +/- 8.846) 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 71 Photometric data point(s) available in NED.

    QUICK-LOOK ANGULAR & PHYSICAL DIAMETERS for NGC 3947 (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]
    r (SDSS Isophotal) 102.7766.80109 25.0 mag arcsec^-2^ 2007SDSS6.C...0000:43.4928.27
    K_s (2MASS "total") 110.9051.0195 Diameter for "total" magnitude 20032MASX.C.......:20032MASX.C.......:46.9321.59
    NOTE: Physical diameters are derived using a scale of 0.4231 kpc/arcsec based on Average NED-D Metric Distance of (87.280 +/- 8.846) Mpc.
    The quantities quoted above have not necessarily been corrected for foreground extinction.

    View details for 12 Diameter data point(s) available in NED.

    EXTERNAL ARCHIVES AND SERVICES for NGC 3947 Help (Back to INDEX)
    Resources for Object NamesSite/Service
    Query SIMBAD by primary NED object name -- NGC 3947SIMBAD (CDS, Strasbourg, France)
    Revised New General Catalogue -- NGC 3947VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    Uppsala General Catalog -- UGC 06863 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    Original Zwicky Catalog -- CGCG 127-095 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    Query UZC Spectral Archive (60 arcsec search radius)Updated Zwicky Catalog Data (Harvard/SAO)
    Morphological Catalog of Galaxies -- MCG +04-28-088 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    2MASS Extended Source Images (JHKs) -- 2MASX J11532031+2045055 NASA/IPAC Infrared Science Archive (IRSA)
    2MASS Extended Source Images (JHKs) -- 2MASXi J1153203+204505 NASA/IPAC Infrared Science Archive (IRSA)
    version
    SDSS Sky Server
    IRAS Point Source Catalog -- IRAS 11507+2101 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    IRAS Faint Source Catalog -- IRAS F11507+2101 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    Catalogue of Principal Galaxies -- PGC 037264 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    Retrieve mean data from LEDA -- PGC 037264 The Lyon/Meudon Extragalactic Database (LEDA)
    NRAO/VLA Sky Survey (NVSS)
    Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- NGC 3947GALEX Mission Data Archive at MAST
    Explore IRSA resources with RADAR (10 arcsec search radius) -- NGC 3947NASA/IPAC Infrared Science Archive (IRSA)
    Resources for position 11h53m20.3s, +20d45m06s (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)
    version
    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)
    The NRAO Data Archive System

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