NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2021-12-02 T17:55:30 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 7638


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 7638                       23h22m33.1s +11d19m44s GPair    7972  0.026592       ...     ...    20     0    6    5     2    2     1 Retrieve Retrieve 1   

Detailed information for each object


Object No. 1 - NGC 7638

INDEX for NGC 7638
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
  • 6 Photometric data point(s) and SED   
  • Spectra   
    Redshift-Independent Distances
    20 Reference(s)   
    5 Position data point(s)
    2 Redshift data point(s)   
    2 Diameter data point(s)   
    1 Association(s)   

    ESSENTIAL NOTE for NGC 7638 (Back to INDEX)
    N/A

    CROSS-IDENTIFICATIONS for NGC 7638 (Back to INDEX)
    Object Names Type Object Names Type
    NGC 7638GPair KAZ 556 G
    IC 1483 GPair IRAS 23200+1103 IrS
    KUG 2320+110A GPair IRAS F23200+1103 IrS
    CGCG 431-046 G PGC 071242 G
    CGCG 2320.0+1104 G [GG2000] 232001.80+110319.8 G
    MCG +02-59-030 GPair    

    COORDINATES for NGC 7638 (Back to INDEX)

    Position Reference:1999AJ....118.2561G

    Reference    Frame     Longitude    Latitude        RA           DEC      Uncertainty Ellipse (arcsec)
                           (degrees)   (degrees)                              Semimajor Semiminor  PA(deg)
    Equatorial (B1950.0)  350.006583   11.054389 23h20m01.580s +11d03m15.80s  5.00E-01  5.00E-01    0
    Equatorial (J2000.0)  350.638016   11.328813 23h22m33.124s +11d19m43.73s  5.00E-01  5.00E-01    0
    Ecliptic   (B1950.0)  355.270671   14.103558                              5.00E-01  5.00E-01    0
    Ecliptic   (J2000.0)  355.967591   14.103584                              5.00E-01  5.00E-01    0
    Galactic               90.726236  -45.911145                              5.00E-01  5.00E-01    0
    SuperGalactic         301.827262   25.071848                              5.00E-01  5.00E-01    0
    
    Additional detailed measurements with references are also available by clicking below:
    5 Position data point(s)

    REDSHIFT-INDEPENDENT DISTANCES for NGC 7638 (Back to INDEX)
     N/A 

    CLASSIFICATIONS (TYPES, ATTRIBUTES) for NGC 7638 (Back to INDEX)
    TypeAs PublishedNED HomogenizedFlagReference Code
    KinematicsHI line widthHI line width...2005ApJS..160..149S
    2 Detailed Classification(s)


    FOREGROUND GALACTIC EXTINCTION for NGC 7638 (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]0.2610.2180.1650.1310.0910.2550.1990.1380.1020.0760.0430.0270.0180.009
    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]0.3410.2710.2080.1680.1220.3240.2380.1730.1310.0930.0570.0360.0230.010


    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 7638 (Back to INDEX)
    Helio. Radial Velocity     :      7972 +/-       15 km/s      
    Redshift                   :  0.026592 +/- 0.000050       2000AJ....119...32G
    Morphology                 :                     
    Magnitude and Filter       : 15.5 
    Size (arcmin)              :  0.6 
    Population Count           :  0.6 
    
    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:
    2 Redshift data point(s)      6 photometric data point(s)      2 Diameter data point(s)      

    QUANTITIES DERIVED FROM REDSHIFT for NGC 7638 (Details)(Back to INDEX)
    Calculated and Corrected Velocities
    V (Heliocentric)           :    7972 +/-     15 km/s      2000AJ....119...32G
    V (Kinematic LSR)          :    7977 +/-     15 km/s      1986MNRAS.221.1023K
    V (Galactocentric GSR)     :    8128 +/-     16 km/s      1991RC3.9.C...0000d
    V (Local Group)            :    8207 +/-     21 km/s      1996AJ....111..794K
    V (3K CMB)                 :    7603 +/-     30 km/s      1996ApJ...473..576F
    V (Virgo Infall only)      :    8054 +/-     23 km/s      2000ApJ...529..786M
    V (Virgo + GA only)        :    7901 +/-     26 km/s      2000ApJ...529..786M
    V (Virgo + GA + Shapley)   :    7884 +/-     26 km/s      2000ApJ...529..786M
    
    Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/-   5 km/sec/Mpc)
    D (Galactocentric GSR)     :   111.3 +/-    7.8 Mpc      (m-M) = 35.23 +/- 0.15 mag
    D (Local Group)            :   112.4 +/-    7.9 Mpc      (m-M) = 35.25 +/- 0.15 mag
    D (3K CMB)                 :   104.1 +/-    7.3 Mpc      (m-M) = 35.09 +/- 0.15 mag
    D (Virgo Infall only)      :   110.3 +/-    7.7 Mpc      (m-M) = 35.21 +/- 0.15 mag
    D (Virgo + GA only)        :   108.2 +/-    7.6 Mpc      (m-M) = 35.17 +/- 0.15 mag
    D (Virgo + GA + Shapley)   :   108.0 +/-    7.6 Mpc      (m-M) = 35.17 +/- 0.15 mag
    
    Scale at Hubble Flow Distances
    Scale (Galactocentric GSR) :     540 pc/arcsec =  0.540 kpc/arcsec =  32.39 kpc/arcmin =   1.94 Mpc/degree
    Scale (Local Group)        :     545 pc/arcsec =  0.545 kpc/arcsec =  32.70 kpc/arcmin =   1.96 Mpc/degree
    Scale (3K CMB)             :     505 pc/arcsec =  0.505 kpc/arcsec =  30.29 kpc/arcmin =   1.82 Mpc/degree
    Scale (Virgo Infall only)  :     535 pc/arcsec =  0.535 kpc/arcsec =  32.09 kpc/arcmin =   1.93 Mpc/degree
    Scale (Virgo + GA only)    :     525 pc/arcsec =  0.525 kpc/arcsec =  31.48 kpc/arcmin =   1.89 Mpc/degree
    Scale(Virgo + GA + Shapley):     524 pc/arcsec =  0.524 kpc/arcsec =  31.42 kpc/arcmin =   1.88 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 = 3.183 arcmin and Selected Redshift, defined by the Velocity Range: from to km/sec where V(Heliocentric) = 7972 km/sec
    Cosmology-Corrected Quantities [Ho = 73.00 km/sec/Mpc, Ωmatter = 0.27, Ωvacuum = 0.73] [Redshift 0.025359 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation] Luminosity Distance : 106 Mpc (m-M) = 35.13 mag Angular-Size Distance : 101 Mpc (m-M) = 35.02 mag Co-Moving Radial Distance : 104 Mpc (m-M) = 35.08 mag Co-Moving Tangential Dist. : 104 Mpc (m-M) = 35.08 mag Co-Moving Volume : 0.00466 Gpc^3 Light Travel-Time : 0.334 Gyr Age at Redshift 0.025359 : 12.965 Gyr Age of Universe : 13.299 Gyr Scale (Cosmology Corrected): 490 pc/arcsec = 0.490 kpc/arcsec = 29.39 kpc/arcmin = 1.76 Mpc/degree Surface Brightness Dimming : Flux Density per Unit Area = 0.90468; Magnitude per Unit Area = 0.1088 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 7638 (Back to INDEX)
     N/A 

    QUICK-LOOK ANGULAR & PHYSICAL DIAMETERS for NGC 7638 (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]
    POSS1 103a-O 36.0036.00... Moderate surface brightness 1963MCG3..C...0000V18.8518.85
    NOTE: At z <= 0.5, physical diameters are derived using a Scale at the Hubble Flow Distance (Virgo + GA + Shapley) of 0.524 kpc/arcsec.
    The quantities quoted above have not necessarily been corrected for foreground extinction.

    View details for 2 Diameter data point(s) available in NED.

    EXTERNAL ARCHIVES AND SERVICES for NGC 7638 Help (Back to INDEX)
    Resources for Object NamesSite/Service
    Query SIMBAD by primary NED object name -- NGC 7638SIMBAD (CDS, Strasbourg, France)
    Revised New General Catalogue -- NGC 7638VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    Original Zwicky Catalog -- CGCG 431-046 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 +02-59-030 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    IRAS Faint Source Catalog -- IRAS F23200+1103 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    Catalogue of Principal Galaxies -- PGC 071242 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    Retrieve mean data from LEDA -- PGC 071242 The Lyon/Meudon Extragalactic Database (LEDA)
    Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- NGC 7638GALEX Mission Data Archive at MAST
    Explore IRSA resources with RADAR (10 arcsec search radius) -- NGC 7638NASA/IPAC Infrared Science Archive (IRSA)
    Resources for position 23h22m33.1s, +11d19m44s (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)
     Size:    Contours (PS)  JPEG  FITS File 
    NRAO/VLA Sky Survey (NVSS)
    The NRAO Data Archive System

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