NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2021-12-02 T16:42:30 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 4840


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 4840                       12h57m32.8s +27d36m37s G        6034  0.020127      14.5g    ...   142     1  111   31    29   14     0 Retrieve Retrieve 1   

Detailed information for each object


Object No. 1 - NGC 4840

INDEX for NGC 4840
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
  • 111 Photometric data point(s) and SED   
  • Spectra   
    Redshift-Independent Distances
    142 Reference(s)   
    31 Position data point(s)
    29 Redshift data point(s)   
    14 Diameter data point(s)   
    1 Note(s)   
    RC3 data    

    ESSENTIAL NOTE for NGC 4840 (Back to INDEX)
    N/A

    CROSS-IDENTIFICATIONS for NGC 4840 (Back to INDEX)
    Object Names Type Object Names Type
    NGC 4840G PGC 044324 G
    CGCG 160-042 G SSTSL2 J125732.82+273637.2 IrS
    CGCG 1255.1+2753 G UZC J125732.9+273637 G
    MCG +05-31-029 G 2CXO J125732.8+273637 XrayS
    WISEA J125732.83+273637.1 IrS CXOGSG J125732.8+273637 XrayS
    2MASX J12573284+2736368 IrS 2XMM J125732.9+273637 XrayS
    2MASS J12573283+2736370 IrS 2XMMp J125732.9+273636 XrayS
    SDSS J125732.83+273637.1 G 1XMM J125732.9+273638 XrayS
    SDSS J125732.83+273637.2 G ABELL 1656:[D80] 046 G
    SDSS J125732.83+273637.4 G ABELL 1656:[GMP83] 4829 G
    GALEXASC J125732.84+273638.1 UvS ABELL 1656:[BO85] 020 G
    GALEXMSC J125732.84+273638.1 UvS [DFO95] 178 G
    WBL 426-026 G ABELL 1656:[TCB2001] sw14-020 G
    LDCE 0926 NED032 G ABELL 1656:[FBH2004] X473 XrayS
    HDCE 0745 NED013 G ABELL 1656:[MHM2009] C3A-088 RadioS
    USGC U508 NED99 G [HHM2010] J194.38682+27.61035 UvES
    AGC 221175 G ABELL 1656:[EF2011] 2111 G
    ASK 579801.0 G [TTL2012] 352020 G
    ComaCC 214 G [DZ2015] 705-06 G
    FOCA 0758 G [HLH2015] 1237667323797504055 G
    ECO 03782 G [PJY2015] 587741602572599352 G
    MAPS-NGP O_323_1031615 G [DF2016] 1302 G
    NGP9 F323-1040116 G NGC 4840:[WLQ2016] X0001 XrayS
    NSA 103762 G ABELL 1656:[JCW2018] 0004829 G
         

    COORDINATES for NGC 4840 (Back to INDEX)

    Position Reference:2009AJ....137.4436M

    Reference    Frame     Longitude    Latitude        RA           DEC      Uncertainty Ellipse (arcsec)
                           (degrees)   (degrees)                              Semimajor Semiminor  PA(deg)
    Equatorial (B1950.0) 193.7817940  27.8803241 12h55m07.630s +27d52m49.17s  2.50E-01  2.50E-01    0
    Equatorial (J2000.0) 194.3868333  27.6103333 12h57m32.840s +27d36m37.20s  2.50E-01  2.50E-01    0
    Ecliptic   (B1950.0) 180.4757154  30.8505679                              2.50E-01  2.50E-01    0
    Ecliptic   (J2000.0) 181.1781202  30.8499673                              2.50E-01  2.50E-01    0
    Galactic              52.8463655  88.5605305                              2.50E-01  2.50E-01    0
    SuperGalactic         89.8613712   7.7528796                              2.50E-01  2.50E-01    0
    
    Additional detailed measurements with references are also available by clicking below:
    31 Position data point(s)

    REDSHIFT-INDEPENDENT DISTANCES for NGC 4840 (Back to INDEX)

    2 Distances found in NED View 2 Individual Distance Measurement(s) for NGC 4840

    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 4840 Distance Modulus
    (mag)
    Metric Distance
    (Mpc)
    Mean 35.23 111.000
    Std. Dev. 0.11 5.657
    Min. 35.15 107.000
    Max. 35.31 115.000
    Median 35.23 111.000

    CLASSIFICATIONS (TYPES, ATTRIBUTES) for NGC 4840 (Back to INDEX)
    TypeAs PublishedNED HomogenizedFlagReference Code
    HierarchyGMGroup member...1980ApJS...42..565D
    Galaxy MorphologyE1:E1?...1991RC3.9.C...0000d
    4 Detailed Classification(s)


    FOREGROUND GALACTIC EXTINCTION for NGC 4840 (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]0.0410.0340.0260.0210.0140.0400.0310.0220.0160.0120.0070.0040.0030.001
    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]0.0530.0420.0320.0260.0190.0500.0370.0270.0200.0140.0090.0060.0040.001


    Galactic Extinction based on H I Column Densities and Galaxy Counts
    (Burstein & Heiles; 1982AJ.....87.1165B) assuming Rv = 3.1:
    AB = 0.060 mag
    See Notes on Galactic Extinction for important caveats.

    BASIC DATA for NGC 4840 (Back to INDEX)
    Helio. Radial Velocity     :      6034 +/-        2 km/s      
    Redshift                   :  0.020127 +/- 0.000007        2016ApJ...819...63R
    Major Diameter (arcmin)    :  0.76
    Minor Diameter (arcmin)    :  0.69
    Magnitude and Filter       : 14.5g
    Classifications            : SAB0                
    
    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:
    29 Redshift data point(s)      111 photometric data point(s)      14 Diameter data point(s)      

    QUANTITIES DERIVED FROM REDSHIFT for NGC 4840 (Details)(Back to INDEX)
    Calculated and Corrected Velocities
    V (Heliocentric)           :    6034 +/-      2 km/s      2016ApJ...819...63R
    V (Kinematic LSR)          :    6042 +/-      2 km/s      1986MNRAS.221.1023K
    V (Galactocentric GSR)     :    6046 +/-      2 km/s      1991RC3.9.C...0000d
    V (Local Group)            :    6018 +/-      2 km/s      1996AJ....111..794K
    V (3K CMB)                 :    6305 +/-     19 km/s      1996ApJ...473..576F
    V (Virgo Infall only)      :    6247 +/-     16 km/s      2000ApJ...529..786M
    V (Virgo + GA only)        :    6578 +/-     28 km/s      2000ApJ...529..786M
    V (Virgo + GA + Shapley)   :    6618 +/-     28 km/s      2000ApJ...529..786M
    
    Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/-   5 km/sec/Mpc)
    D (Galactocentric GSR)     :    82.8 +/-    5.8 Mpc      (m-M) = 34.59 +/- 0.15 mag
    D (Local Group)            :    82.4 +/-    5.8 Mpc      (m-M) = 34.58 +/- 0.15 mag
    D (3K CMB)                 :    86.4 +/-    6.1 Mpc      (m-M) = 34.68 +/- 0.15 mag
    D (Virgo Infall only)      :    85.6 +/-    6.0 Mpc      (m-M) = 34.66 +/- 0.15 mag
    D (Virgo + GA only)        :    90.1 +/-    6.3 Mpc      (m-M) = 34.77 +/- 0.15 mag
    D (Virgo + GA + Shapley)   :    90.7 +/-    6.3 Mpc      (m-M) = 34.79 +/- 0.15 mag
    
    Scale at Hubble Flow Distances
    Scale (Galactocentric GSR) :     402 pc/arcsec =  0.402 kpc/arcsec =  24.09 kpc/arcmin =   1.45 Mpc/degree
    Scale (Local Group)        :     400 pc/arcsec =  0.400 kpc/arcsec =  23.98 kpc/arcmin =   1.44 Mpc/degree
    Scale (3K CMB)             :     419 pc/arcsec =  0.419 kpc/arcsec =  25.13 kpc/arcmin =   1.51 Mpc/degree
    Scale (Virgo Infall only)  :     415 pc/arcsec =  0.415 kpc/arcsec =  24.89 kpc/arcmin =   1.49 Mpc/degree
    Scale (Virgo + GA only)    :     437 pc/arcsec =  0.437 kpc/arcsec =  26.21 kpc/arcmin =   1.57 Mpc/degree
    Scale(Virgo + GA + Shapley):     440 pc/arcsec =  0.440 kpc/arcsec =  26.37 kpc/arcmin =   1.58 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 = 3.792 arcmin and Selected Redshift, defined by the Velocity Range: from to km/sec where V(Heliocentric) = 6034 km/sec
    Cosmology-Corrected Quantities [Ho = 73.00 km/sec/Mpc, Ωmatter = 0.27, Ωvacuum = 0.73] [Redshift 0.021032 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation] Luminosity Distance : 87.8 Mpc (m-M) = 34.72 mag Angular-Size Distance : 84.2 Mpc (m-M) = 34.63 mag Co-Moving Radial Distance : 86 Mpc (m-M) = 34.67 mag Co-Moving Tangential Dist. : 86 Mpc (m-M) = 34.67 mag Co-Moving Volume : 0.00266 Gpc^3 Light Travel-Time : 0.278 Gyr Age at Redshift 0.021032 : 13.021 Gyr Age of Universe : 13.299 Gyr Scale (Cosmology Corrected): 408 pc/arcsec = 0.408 kpc/arcsec = 24.50 kpc/arcmin = 1.47 Mpc/degree Surface Brightness Dimming : Flux Density per Unit Area = 0.92011; Magnitude per Unit Area = 0.0904 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 4840 (Back to INDEX)
     N/A 

    QUICK-LOOK ANGULAR & PHYSICAL DIAMETERS for NGC 4840 (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) 55.7349.60119 25.0 mag arcsec^-2^ 2007SDSS6.C...0000:29.9926.69
    K_s (2MASS "total") 60.8049.86125 Diameter for "total" magnitude 20032MASX.C.......:20032MASX.C.......:32.7226.83
    NOTE: Physical diameters are derived using a scale of 0.5381 kpc/arcsec based on Average NED-D Metric Distance of (111.000 +/- 5.657) Mpc.
    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 4840 Help (Back to INDEX)
    Resources for Object NamesSite/Service
    Query SIMBAD by primary NED object name -- NGC 4840SIMBAD (CDS, Strasbourg, France)
    Revised New General Catalogue -- NGC 4840VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    Original Zwicky Catalog -- CGCG 160-042 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 +05-31-029 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    2MASS Extended Source Images (JHKs) -- 2MASX J12573284+2736368 NASA/IPAC Infrared Science Archive (IRSA)
    version
    SDSS Sky Server
    Catalogue of Principal Galaxies -- PGC 044324 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    Retrieve mean data from LEDA -- PGC 044324 The Lyon/Meudon Extragalactic Database (LEDA)
    Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- NGC 4840GALEX Mission Data Archive at MAST
    Explore IRSA resources with RADAR (10 arcsec search radius) -- NGC 4840NASA/IPAC Infrared Science Archive (IRSA)
    Resources for position 12h57m32.8s, +27d36m37s (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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