NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2022-01-22 T23:23:19 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 7020


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 7020                       21h11m20.1s -64d01m31s G        3201  0.010677      12.78    ...    78     6   59    9     6   17     0 Retrieve Retrieve 1   

Detailed information for each object


Object No. 1 - NGC 7020

INDEX for NGC 7020
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
  • 59 Photometric data point(s) and SED   
  • Spectra   
    Redshift-Independent Distances
    78 Reference(s)   
    9 Position data point(s)
    6 Redshift data point(s)   
    17 Diameter data point(s)   
    6 Note(s)   
    ESO data    
    RC3 data    

    ESSENTIAL NOTE for NGC 7020 (Back to INDEX)
    N/A

    CROSS-IDENTIFICATIONS for NGC 7020 (Back to INDEX)
    Object Names Type Object Names Type
    NGC 7020G LDCE 1454 NED002 G
    NGC 7021 G HDCE 1148 NED002 G
    ESO 107- G 013 G SSRS GROUP 08 NED03 G
    ESO 210713-6413.8 G PGC1 0066530 NED002 G
    WISEA J211120.04-640130.8 IrS APMBGC 107+051-044 G
    2MASX J21112011-6401313 IrS PGC 066291 G
    2MASS J21112007-6401310 IrS LGG 443:[G93] 002 G
    GALEXASC J211120.06-640130.1 UvS [RFG96] 210718.0-641500 G
    SGC 210713-6413.8 G    
    ESO-LV 1070130 G    

    COORDINATES for NGC 7020 (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)  316.803795  -64.230067  21h07m12.91s  -64d13m48.2s  1.25E+00  1.25E+00    0
    Equatorial (J2000.0)  317.833708  -64.025333  21h11m20.09s  -64d01m31.2s  1.25E+00  1.25E+00    0
    Ecliptic   (B1950.0)  296.657826  -45.055304                              1.25E+00  1.25E+00    0
    Ecliptic   (J2000.0)  297.359902  -45.060796                              1.25E+00  1.25E+00    0
    Galactic              330.561368  -39.298057                              1.25E+00  1.25E+00    0
    SuperGalactic         220.738585    6.073533                              1.25E+00  1.25E+00    0
    
    Additional detailed measurements with references are also available by clicking below:
    9 Position data point(s)

    REDSHIFT-INDEPENDENT DISTANCES for NGC 7020 (Back to INDEX)

    2 Distances found in NED View 2 Individual Distance Measurement(s) for NGC 7020

    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.


    NGC 7020 Distance Modulus
    (mag)
    Metric Distance
    (Mpc)
    Mean 32.24 29.400
    Std. Dev. 0.91 11.879
    Min. 31.60 21.000
    Max. 32.89 37.800
    Median 32.24 29.400

    CLASSIFICATIONS (TYPES, ATTRIBUTES) for NGC 7020 (Back to INDEX)
    TypeAs PublishedNED HomogenizedFlagReference Code
    HierarchyGRGroup member, radial-velocity confirmed...1993A&AS..100...47G
    Galaxy Morphology(R)SA0^+(r)(R)SA0^+(r)...1991RC3.9.C...0000d
    Distance IndicatorTully estTully est...1988NBGC.C....0000T
    14 Detailed Classification(s)


    FOREGROUND GALACTIC EXTINCTION for NGC 7020 (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]0.1700.1430.1080.0850.0590.1670.1300.0900.0670.0500.0280.0180.0120.006
    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]0.2060.1640.1260.1010.0740.1960.1440.1040.0790.0560.0340.0220.0140.006


    Galactic Extinction based on H I Column Densities and Galaxy Counts
    (Burstein & Heiles; 1982AJ.....87.1165B) assuming Rv = 3.1:
    AB = 0.030 mag
    See Notes on Galactic Extinction for important caveats.

    BASIC DATA for NGC 7020 (Back to INDEX)
    Helio. Radial Velocity     :      3201 +/-       26 km/s      
    Redshift                   :  0.010677 +/- 0.000087        2003AJ....126.2268W
    Major Diameter (arcmin)    :   3.7
    Minor Diameter (arcmin)    :   1.8
    Magnitude and Filter       : 12.78
    Classifications            : (R)SA(r)0^+         
    
    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)      59 photometric data point(s)      17 Diameter data point(s)      

    QUANTITIES DERIVED FROM REDSHIFT for NGC 7020 (Details)(Back to INDEX)
    Calculated and Corrected Velocities
    V (Heliocentric)           :    3201 +/-     26 km/s      2003AJ....126.2268W
    V (Kinematic LSR)          :    3197 +/-     26 km/s      1986MNRAS.221.1023K
    V (Galactocentric GSR)     :    3114 +/-     26 km/s      1991RC3.9.C...0000d
    V (Local Group)            :    3084 +/-     27 km/s      1996AJ....111..794K
    V (3K CMB)                 :    3102 +/-     27 km/s      1996ApJ...473..576F
    V (Virgo Infall only)      :    3042 +/-     27 km/s      2000ApJ...529..786M
    V (Virgo + GA only)        :    3339 +/-     34 km/s      2000ApJ...529..786M
    V (Virgo + GA + Shapley)   :    3359 +/-     34 km/s      2000ApJ...529..786M
    
    Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/-   5 km/sec/Mpc)
    D (Galactocentric GSR)     :    42.7 +/-    3.0 Mpc      (m-M) = 33.15 +/- 0.15 mag
    D (Local Group)            :    42.2 +/-    3.0 Mpc      (m-M) = 33.13 +/- 0.15 mag
    D (3K CMB)                 :    42.5 +/-    3.0 Mpc      (m-M) = 33.14 +/- 0.15 mag
    D (Virgo Infall only)      :    41.7 +/-    2.9 Mpc      (m-M) = 33.10 +/- 0.15 mag
    D (Virgo + GA only)        :    45.7 +/-    3.2 Mpc      (m-M) = 33.30 +/- 0.15 mag
    D (Virgo + GA + Shapley)   :    46.0 +/-    3.2 Mpc      (m-M) = 33.31 +/- 0.15 mag
    
    Scale at Hubble Flow Distances
    Scale (Galactocentric GSR) :     207 pc/arcsec =  0.207 kpc/arcsec =  12.41 kpc/arcmin =   0.74 Mpc/degree
    Scale (Local Group)        :     205 pc/arcsec =  0.205 kpc/arcsec =  12.29 kpc/arcmin =   0.74 Mpc/degree
    Scale (3K CMB)             :     206 pc/arcsec =  0.206 kpc/arcsec =  12.36 kpc/arcmin =   0.74 Mpc/degree
    Scale (Virgo Infall only)  :     202 pc/arcsec =  0.202 kpc/arcsec =  12.12 kpc/arcmin =   0.73 Mpc/degree
    Scale (Virgo + GA only)    :     222 pc/arcsec =  0.222 kpc/arcsec =  13.31 kpc/arcmin =   0.80 Mpc/degree
    Scale(Virgo + GA + Shapley):     223 pc/arcsec =  0.223 kpc/arcsec =  13.39 kpc/arcmin =   0.80 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 = 7.470 arcmin and Selected Redshift, defined by the Velocity Range: from to km/sec where V(Heliocentric) = 3201 km/sec
    Cosmology-Corrected Quantities [Ho = 73.00 km/sec/Mpc, Ωmatter = 0.27, Ωvacuum = 0.73] [Redshift 0.010347 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation] Luminosity Distance : 42.8 Mpc (m-M) = 33.16 mag Angular-Size Distance : 42 Mpc (m-M) = 33.11 mag Co-Moving Radial Distance : 42.4 Mpc (m-M) = 33.14 mag Co-Moving Tangential Dist. : 42.4 Mpc (m-M) = 33.14 mag Co-Moving Volume : 0.000319 Gpc^3 Light Travel-Time : 0.138 Gyr Age at Redshift 0.010347 : 13.161 Gyr Age of Universe : 13.299 Gyr Scale (Cosmology Corrected): 203 pc/arcsec = 0.203 kpc/arcsec = 12.21 kpc/arcmin = 0.73 Mpc/degree Surface Brightness Dimming : Flux Density per Unit Area = 0.95966; Magnitude per Unit Area = 0.04471 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 7020 (Back to INDEX)
     N/A 

    QUICK-LOOK ANGULAR & PHYSICAL DIAMETERS for NGC 7020 (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 309.03132.88164 27.0 B-mag arcsec^-2^ 1989ESOLV.C...0000L44.0518.94
    K_s (2MASS "total") 157.2066.02170 Diameter for "total" magnitude 20032MASX.C.......:20032MASX.C.......:22.419.41
    NOTE: Physical diameters are derived using a scale of 0.1425 kpc/arcsec based on Average NED-D Metric Distance of (29.400 +/- 11.879) Mpc.
    The quantities quoted above have not necessarily been corrected for foreground extinction.

    View details for 17 Diameter data point(s) available in NED.

    EXTERNAL ARCHIVES AND SERVICES for NGC 7020 Help (Back to INDEX)
    Resources for Object NamesSite/Service
    Query SIMBAD by primary NED object name -- NGC 7020SIMBAD (CDS, Strasbourg, France)
    Revised New General Catalogue -- NGC 7020VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    Revised New General Catalogue -- NGC 7021 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    ESO/Uppsala Survey -- ESO 107- G 013 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    2MASS Extended Source Images (JHKs) -- 2MASX J21112011-6401313 NASA/IPAC Infrared Science Archive (IRSA)
    The ESO-LV catalog-- ESO-LV 1070130 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    Catalogue of Principal Galaxies -- PGC 066291 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    Retrieve mean data from LEDA -- PGC 066291 The Lyon/Meudon Extragalactic Database (LEDA)
    Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- NGC 7020GALEX Mission Data Archive at MAST
    Explore IRSA resources with RADAR (10 arcsec search radius) -- NGC 7020NASA/IPAC Infrared Science Archive (IRSA)
    Resources for position 21h11m20.1s, -64d01m31s (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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