NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2021-12-03 T01:18:10 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 7684


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 7684                       23h30m32.0s +00d04m52s G        5160  0.017213 SPEC 13.7g    ...    63     1   94   25    19   14     0 Retrieve Retrieve 1   

Detailed information for each object


Object No. 1 - NGC 7684

INDEX for NGC 7684
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
  • 94 Photometric data point(s) and SED   
  • Spectra   
    Redshift-Independent Distances
    63 Reference(s)   
    25 Position data point(s)
    19 Redshift data point(s)   
    14 Diameter data point(s)   
    1 Note(s)   
    UGC data    
    RC3 data    

    ESSENTIAL NOTE for NGC 7684 (Back to INDEX)
    N/A

    CROSS-IDENTIFICATIONS for NGC 7684 (Back to INDEX)
    Object Names Type Object Names Type
    NGC 7684G GALEXASC J233032.01+000452.4 UvS
    UGC 12637 G GALEXMSC J233032.04+000453.0 UvS
    CGCG 380-065 G ASK 025987.0 G
    CGCG 2327.9-0012 G NSA 005479 G
    MCG +00-59-050 G PGC 071625 G
    WISEA J233032.03+000451.7 IrS RESOLVE rf0469 G
    2MASX J23303202+0004520 IrS UZC J233032.0+000450 G
    2MASXi J2330320+000451 IrS CXOGSG J233032.2+000448 XrayS
    SDSS J233032.03+000451.7 G CALIFA 919 G
    SDSS J233032.03+000451.8 G [HIK2015] 3228 G
    SDSS J233032.04+000451.8 G NGC 7684:[WLQ2016] X0002 XrayS
         

    COORDINATES for NGC 7684 (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)  351.992749   -0.194831 23h27m58.260s -00d11m41.39s  5.00E-01  5.00E-01    0
    Equatorial (J2000.0)  352.633484    0.081068 23h30m32.036s +00d04m51.84s  5.00E-01  5.00E-01    0
    Ecliptic   (B1950.0)  352.569309    2.998179                              5.00E-01  5.00E-01    0
    Ecliptic   (J2000.0)  353.267538    2.997908                              5.00E-01  5.00E-01    0
    Galactic               84.075294  -56.559846                              5.00E-01  5.00E-01    0
    SuperGalactic         290.562473   20.319632                              5.00E-01  5.00E-01    0
    
    Additional detailed measurements with references are also available by clicking below:
    25 Position data point(s)

    REDSHIFT-INDEPENDENT DISTANCES for NGC 7684 (Back to INDEX)
     N/A 

    CLASSIFICATIONS (TYPES, ATTRIBUTES) for NGC 7684 (Back to INDEX)
    TypeAs PublishedNED HomogenizedFlagReference Code
    KinematicsHI line widthHI line width...2005ApJS..160..149S
    Galaxy MorphologyS0^+S0^+...1991RC3.9.C...0000d
    5 Detailed Classification(s)


    FOREGROUND GALACTIC EXTINCTION for NGC 7684 (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]0.2010.1680.1270.1000.0700.1960.1530.1060.0790.0580.0330.0210.0140.007
    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]0.2480.1970.1520.1220.0890.2360.1730.1260.0950.0680.0410.0260.0170.007


    Galactic Extinction based on H I Column Densities and Galaxy Counts
    (Burstein & Heiles; 1982AJ.....87.1165B) assuming Rv = 3.1:
    AB = 0.140 mag
    See Notes on Galactic Extinction for important caveats.

    BASIC DATA for NGC 7684 (Back to INDEX)
    Helio. Radial Velocity     :      5160 +/-        2 km/s SPEC 
    Redshift                   :  0.017213 +/- 0.000007  SPEC  2016SDSSD.C...0000:
    Major Diameter (arcmin)    :  1.51
    Minor Diameter (arcmin)    :  0.51
    Magnitude and Filter       : 13.7g
    Classifications            : S0+                 
    
    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:
    19 Redshift data point(s)      94 photometric data point(s)      14 Diameter data point(s)      

    QUANTITIES DERIVED FROM REDSHIFT for NGC 7684 (Details)(Back to INDEX)
    Calculated and Corrected Velocities
    V (Heliocentric)           :    5160 +/-      2 km/s SPEC 2016SDSSD.C...0000:
    V (Kinematic LSR)          :    5163 +/-      2 km/s SPEC 1986MNRAS.221.1023K
    V (Galactocentric GSR)     :    5282 +/-      5 km/s SPEC 1991RC3.9.C...0000d
    V (Local Group)            :    5350 +/-     12 km/s SPEC 1996AJ....111..794K
    V (3K CMB)                 :    4793 +/-     26 km/s SPEC 1996ApJ...473..576F
    V (Virgo Infall only)      :    5192 +/-     16 km/s SPEC 2000ApJ...529..786M
    V (Virgo + GA only)        :    5125 +/-     17 km/s SPEC 2000ApJ...529..786M
    V (Virgo + GA + Shapley)   :    5119 +/-     17 km/s SPEC 2000ApJ...529..786M
    
    Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/-   5 km/sec/Mpc)
    D (Galactocentric GSR)     :    72.4 +/-    5.1 Mpc      (m-M) = 34.30 +/- 0.15 mag
    D (Local Group)            :    73.3 +/-    5.1 Mpc      (m-M) = 34.33 +/- 0.15 mag
    D (3K CMB)                 :    65.7 +/-    4.6 Mpc      (m-M) = 34.09 +/- 0.15 mag
    D (Virgo Infall only)      :    71.1 +/-    5.0 Mpc      (m-M) = 34.26 +/- 0.15 mag
    D (Virgo + GA only)        :    70.2 +/-    4.9 Mpc      (m-M) = 34.23 +/- 0.15 mag
    D (Virgo + GA + Shapley)   :    70.1 +/-    4.9 Mpc      (m-M) = 34.23 +/- 0.15 mag
    
    Scale at Hubble Flow Distances
    Scale (Galactocentric GSR) :     351 pc/arcsec =  0.351 kpc/arcsec =  21.05 kpc/arcmin =   1.26 Mpc/degree
    Scale (Local Group)        :     355 pc/arcsec =  0.355 kpc/arcsec =  21.32 kpc/arcmin =   1.28 Mpc/degree
    Scale (3K CMB)             :     318 pc/arcsec =  0.318 kpc/arcsec =  19.10 kpc/arcmin =   1.15 Mpc/degree
    Scale (Virgo Infall only)  :     345 pc/arcsec =  0.345 kpc/arcsec =  20.69 kpc/arcmin =   1.24 Mpc/degree
    Scale (Virgo + GA only)    :     340 pc/arcsec =  0.340 kpc/arcsec =  20.42 kpc/arcmin =   1.23 Mpc/degree
    Scale(Virgo + GA + Shapley):     340 pc/arcsec =  0.340 kpc/arcsec =  20.40 kpc/arcmin =   1.22 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 = 4.903 arcmin and Selected Redshift, defined by the Velocity Range: from to km/sec where V(Heliocentric) = 5160 km/sec
    Cosmology-Corrected Quantities [Ho = 73.00 km/sec/Mpc, Ωmatter = 0.27, Ωvacuum = 0.73] [Redshift 0.015988 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation] Luminosity Distance : 66.5 Mpc (m-M) = 34.11 mag Angular-Size Distance : 64.4 Mpc (m-M) = 34.05 mag Co-Moving Radial Distance : 65.4 Mpc (m-M) = 34.08 mag Co-Moving Tangential Dist. : 65.4 Mpc (m-M) = 34.08 mag Co-Moving Volume : 0.00117 Gpc^3 Light Travel-Time : 0.212 Gyr Age at Redshift 0.015988 : 13.087 Gyr Age of Universe : 13.299 Gyr Scale (Cosmology Corrected): 312 pc/arcsec = 0.312 kpc/arcsec = 18.74 kpc/arcmin = 1.12 Mpc/degree Surface Brightness Dimming : Flux Density per Unit Area = 0.93852; Magnitude per Unit Area = 0.06889 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 7684 (Back to INDEX)
     N/A 

    QUICK-LOOK ANGULAR & PHYSICAL DIAMETERS for NGC 7684 (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) 96.1536.5421 25.0 mag arcsec^-2^ 2007SDSS6.C...0000:32.6912.42
    K_s (2MASS "total") 97.0040.7420 Diameter for "total" magnitude 20032MASX.C.......:20032MASX.C.......:32.9713.85
    NOTE: At z <= 0.5, physical diameters are derived using a Scale at the Hubble Flow Distance (Virgo + GA + Shapley) of 0.340 kpc/arcsec.
    The quantities quoted above have not necessarily been corrected for foreground extinction.

    View details for 14 Diameter data point(s) available in NED.

    EXTERNAL ARCHIVES AND SERVICES for NGC 7684 Help (Back to INDEX)
    Resources for Object NamesSite/Service
    Query SIMBAD by primary NED object name -- NGC 7684SIMBAD (CDS, Strasbourg, France)
    Revised New General Catalogue -- NGC 7684VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    Uppsala General Catalog -- UGC 12637 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    Original Zwicky Catalog -- CGCG 380-065 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 +00-59-050 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    2MASS Extended Source Images (JHKs) -- 2MASX J23303202+0004520 NASA/IPAC Infrared Science Archive (IRSA)
    2MASS Extended Source Images (JHKs) -- 2MASXi J2330320+000451 NASA/IPAC Infrared Science Archive (IRSA)
    version
    SDSS Sky Server
    Catalogue of Principal Galaxies -- PGC 071625 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    Retrieve mean data from LEDA -- PGC 071625 The Lyon/Meudon Extragalactic Database (LEDA)
    Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- NGC 7684GALEX Mission Data Archive at MAST
    Explore IRSA resources with RADAR (10 arcsec search radius) -- NGC 7684NASA/IPAC Infrared Science Archive (IRSA)
    Resources for position 23h30m32.0s, +00d04m52s (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)
        Size:     GIF     FITS File  
    Faint Images of the Radio Sky at Twenty-Centimeters
    The NRAO Data Archive System

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