NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2021-12-02 T17:26:11 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 2643


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 2643                       08h41m51.7s +19d42m09s G        4533  0.015120 SPEC 15.1g    ...    25     0   43    8     6    6     0 Retrieve Retrieve 1   

Detailed information for each object


Object No. 1 - NGC 2643

INDEX for NGC 2643
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
  • 43 Photometric data point(s) and SED   
  • Spectra   
    Redshift-Independent Distances
    25 Reference(s)   
    8 Position data point(s)
    6 Redshift data point(s)   
    6 Diameter data point(s)   

    ESSENTIAL NOTE for NGC 2643 (Back to INDEX)
    N/A

    CROSS-IDENTIFICATIONS for NGC 2643 (Back to INDEX)
    Object Names Type Object Names Type
    NGC 2643G SDSS J084151.73+194209.0 G
    IC 2390 G SDSS J084151.74+194209.1 G
    CGCG 089-067 G ASK 587247.0 G
    CGCG 0838.9+1953 G ECO 05190 G
    WISEA J084151.73+194209.3 IrS NPM1G +19.0187 G
    2MASX J08415170+1942085 IrS NSA 105364 G
    2MASXi J0841517+194208 IrS PGC 024434 G
    2MASS J08415173+1942092 IrS [TTL2012] 396105 G
         

    COORDINATES for NGC 2643 (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)  129.748370   19.881842 08h38m59.609s +19d52m54.63s  5.00E-01  5.00E-01    0
    Equatorial (J2000.0)  130.465576   19.702516 08h41m51.738s +19d42m09.06s  5.00E-01  5.00E-01    0
    Ecliptic   (B1950.0)  126.976199    1.393696                              5.00E-01  5.00E-01    0
    Ecliptic   (J2000.0)  127.674760    1.398534                              5.00E-01  5.00E-01    0
    Galactic              206.021087   32.819713                              5.00E-01  5.00E-01    0
    SuperGalactic          63.913389  -45.913753                              5.00E-01  5.00E-01    0
    
    Additional detailed measurements with references are also available by clicking below:
    8 Position data point(s)

    REDSHIFT-INDEPENDENT DISTANCES for NGC 2643 (Back to INDEX)
     N/A 

    CLASSIFICATIONS (TYPES, ATTRIBUTES) for NGC 2643 (Back to INDEX)
     N/A 

    FOREGROUND GALACTIC EXTINCTION for NGC 2643 (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]0.1300.1090.0820.0650.0450.1270.0990.0690.0510.0380.0210.0130.0090.005
    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]0.1640.1300.1000.0810.0580.1550.1140.0830.0630.0450.0270.0170.0110.005


    Galactic Extinction based on H I Column Densities and Galaxy Counts
    (Burstein & Heiles; 1982AJ.....87.1165B) assuming Rv = 3.1:
    AB = 0.070 mag
    See Notes on Galactic Extinction for important caveats.

    BASIC DATA for NGC 2643 (Back to INDEX)
    Helio. Radial Velocity     :      4533 +/-        2 km/s SPEC 
    Redshift                   :  0.015120 +/- 0.000008  SPEC  2016SDSSD.C...0000:
    Major Diameter (arcmin)    :  0.77
    Minor Diameter (arcmin)    :  0.47
    Magnitude and Filter       : 15.1g
    Classifications            :                     
    
    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)      43 photometric data point(s)      6 Diameter data point(s)      

    QUANTITIES DERIVED FROM REDSHIFT for NGC 2643 (Details)(Back to INDEX)
    Calculated and Corrected Velocities
    V (Heliocentric)           :    4533 +/-      2 km/s SPEC 2016SDSSD.C...0000:
    V (Kinematic LSR)          :    4524 +/-      2 km/s SPEC 1986MNRAS.221.1023K
    V (Galactocentric GSR)     :    4444 +/-      4 km/s SPEC 1991RC3.9.C...0000d
    V (Local Group)            :    4417 +/-      7 km/s SPEC 1996AJ....111..794K
    V (3K CMB)                 :    4793 +/-     18 km/s SPEC 1996ApJ...473..576F
    V (Virgo Infall only)      :    4579 +/-     13 km/s SPEC 2000ApJ...529..786M
    V (Virgo + GA only)        :    4775 +/-     19 km/s SPEC 2000ApJ...529..786M
    V (Virgo + GA + Shapley)   :    4803 +/-     19 km/s SPEC 2000ApJ...529..786M
    
    Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/-   5 km/sec/Mpc)
    D (Galactocentric GSR)     :    60.9 +/-    4.3 Mpc      (m-M) = 33.92 +/- 0.15 mag
    D (Local Group)            :    60.5 +/-    4.2 Mpc      (m-M) = 33.91 +/- 0.15 mag
    D (3K CMB)                 :    65.7 +/-    4.6 Mpc      (m-M) = 34.09 +/- 0.15 mag
    D (Virgo Infall only)      :    62.7 +/-    4.4 Mpc      (m-M) = 33.99 +/- 0.15 mag
    D (Virgo + GA only)        :    65.4 +/-    4.6 Mpc      (m-M) = 34.08 +/- 0.15 mag
    D (Virgo + GA + Shapley)   :    65.8 +/-    4.6 Mpc      (m-M) = 34.09 +/- 0.15 mag
    
    Scale at Hubble Flow Distances
    Scale (Galactocentric GSR) :     295 pc/arcsec =  0.295 kpc/arcsec =  17.71 kpc/arcmin =   1.06 Mpc/degree
    Scale (Local Group)        :     293 pc/arcsec =  0.293 kpc/arcsec =  17.60 kpc/arcmin =   1.06 Mpc/degree
    Scale (3K CMB)             :     318 pc/arcsec =  0.318 kpc/arcsec =  19.10 kpc/arcmin =   1.15 Mpc/degree
    Scale (Virgo Infall only)  :     304 pc/arcsec =  0.304 kpc/arcsec =  18.25 kpc/arcmin =   1.09 Mpc/degree
    Scale (Virgo + GA only)    :     317 pc/arcsec =  0.317 kpc/arcsec =  19.03 kpc/arcmin =   1.14 Mpc/degree
    Scale(Virgo + GA + Shapley):     319 pc/arcsec =  0.319 kpc/arcsec =  19.14 kpc/arcmin =   1.15 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 = 5.224 arcmin and Selected Redshift, defined by the Velocity Range: from to km/sec where V(Heliocentric) = 4533 km/sec
    Cosmology-Corrected Quantities [Ho = 73.00 km/sec/Mpc, Ωmatter = 0.27, Ωvacuum = 0.73] [Redshift 0.015986 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) = 34.04 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 0.015986 : 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 = 0.93853; Magnitude per Unit Area = 0.06888 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 2643 (Back to INDEX)
     N/A 

    QUICK-LOOK ANGULAR & PHYSICAL DIAMETERS for NGC 2643 (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) 52.0132.2521 25.0 mag arcsec^-2^ 2007SDSS6.C...0000:16.5910.29
    K_s (2MASS "total") 50.5027.2735 Diameter for "total" magnitude 20032MASX.C.......:20032MASX.C.......:16.118.70
    NOTE: At z <= 0.5, physical diameters are derived using a Scale at the Hubble Flow Distance (Virgo + GA + Shapley) of 0.319 kpc/arcsec.
    The quantities quoted above have not necessarily been corrected for foreground extinction.

    View details for 6 Diameter data point(s) available in NED.

    EXTERNAL ARCHIVES AND SERVICES for NGC 2643 Help (Back to INDEX)
    Resources for Object NamesSite/Service
    Query SIMBAD by primary NED object name -- NGC 2643SIMBAD (CDS, Strasbourg, France)
    Revised New General Catalogue -- NGC 2643VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    Original Zwicky Catalog -- CGCG 089-067 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    Query UZC Spectral Archive (60 arcsec search radius)Updated Zwicky Catalog Data (Harvard/SAO)
    2MASS Extended Source Images (JHKs) -- 2MASX J08415170+1942085 NASA/IPAC Infrared Science Archive (IRSA)
    2MASS Extended Source Images (JHKs) -- 2MASXi J0841517+194208 NASA/IPAC Infrared Science Archive (IRSA)
    version
    SDSS Sky Server
    Catalogue of Principal Galaxies -- PGC 024434 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    Retrieve mean data from LEDA -- PGC 024434 The Lyon/Meudon Extragalactic Database (LEDA)
    Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- NGC 2643GALEX Mission Data Archive at MAST
    Explore IRSA resources with RADAR (10 arcsec search radius) -- NGC 2643NASA/IPAC Infrared Science Archive (IRSA)
    Resources for position 08h41m51.7s, +19d42m09s (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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