NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2022-01-17 T03:25:37 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 1784


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 1784                       05h05m27.1s -11d52m18s G        2319  0.007735      12.44    ...   144     5   56   16    17    7     0 Retrieve Retrieve 1   

Detailed information for each object


Object No. 1 - NGC 1784

INDEX for NGC 1784
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
  • 56 Photometric data point(s) and SED   
  • Spectra   
    Redshift-Independent Distances
    144 Reference(s)   
    16 Position data point(s)
    17 Redshift data point(s)   
    7 Diameter data point(s)   
    5 Note(s)   
    RC3 data    

    ESSENTIAL NOTE for NGC 1784 (Back to INDEX)
    N/A

    CROSS-IDENTIFICATIONS for NGC 1784 (Back to INDEX)
    Object Names Type Object Names Type
    NGC 1784G CGS 261 G
    MCG -02-13-042 G 6dF J0505271-115217 G
    WISEA J050527.13-115216.7 IrS LDCE 0371 NED001 G
    2MASX J05052711-1152171 IrS PGC1 0016716 NED001 G
    2MASXi J0505268-115220 IrS AGC 450011 G
    2MASS J05052712-1152165 IrS HIPASS J0505-11 RadioS
    IRAS 05030-1156 IrS PGC 016716 G
    IRAS F05031-1156 IrS NVSS J050527-115216 RadioS
    AKARI J0505280-115217 IrS    

    COORDINATES for NGC 1784 (Back to INDEX)

    Position Reference:1999GSCTy.C......0G

    Reference    Frame     Longitude    Latitude        RA           DEC      Uncertainty Ellipse (arcsec)
                           (degrees)   (degrees)                              Semimajor Semiminor  PA(deg)
    Equatorial (B1950.0)   75.779279  -11.938568 05h03m07.027s -11d56m18.84s  9.00E-01  9.00E-01    0
    Equatorial (J2000.0)   76.362917  -11.871528 05h05m27.100s -11d52m17.50s  9.00E-01  9.00E-01    0
    Ecliptic   (B1950.0)   73.033551  -34.550325                              9.00E-01  9.00E-01    0
    Ecliptic   (J2000.0)   73.732941  -34.543911                              9.00E-01  9.00E-01    0
    Galactic              211.885581  -28.840544                              9.00E-01  9.00E-01    0
    SuperGalactic         301.176181  -63.143484                              9.00E-01  9.00E-01    0
    
    Additional detailed measurements with references are also available by clicking below:
    16 Position data point(s)

    REDSHIFT-INDEPENDENT DISTANCES for NGC 1784 (Back to INDEX)

    28 Distances found in NED View 28 Individual Distance Measurement(s) for NGC 1784

    Summary Statistics computed by NED from 28 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 1784 Distance Modulus
    (mag)
    Metric Distance
    (Mpc)
    Mean 31.92 24.568
    Std. Dev. 0.41 4.520
    Min. 31.05 16.200
    Max. 32.64 33.700
    Median 31.98 24.900

    CLASSIFICATIONS (TYPES, ATTRIBUTES) for NGC 1784 (Back to INDEX)
    TypeAs PublishedNED HomogenizedFlagReference Code
    KinematicsHI line widthHI line width...2005ApJS..160..149S
    Luminosity Class5.0LC III...1991RC3.9.C...0000d
    Galaxy MorphologySB(r)cSB(r)c...1991RC3.9.C...0000d
    Distance IndicatorTully-FisherTully-Fisher...1997ApJS..109..333W
    46 Detailed Classification(s)


    FOREGROUND GALACTIC EXTINCTION for NGC 1784 (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]0.5840.4890.3690.2920.2030.5710.4450.3080.2290.1700.0960.0600.0410.021
    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]0.7210.5720.4400.3550.2570.6840.5030.3650.2770.1960.1200.0760.0490.020


    Galactic Extinction based on H I Column Densities and Galaxy Counts
    (Burstein & Heiles; 1982AJ.....87.1165B) assuming Rv = 3.1:
    AB = 0.400 mag
    See Notes on Galactic Extinction for important caveats.

    BASIC DATA for NGC 1784 (Back to INDEX)
    Helio. Radial Velocity     :      2319 +/-        3 km/s      
    Redshift                   :  0.007735 +/- 0.000010        2004AJ....128...16K
    Major Diameter (arcmin)    :   4.0
    Minor Diameter (arcmin)    :   2.5
    Magnitude and Filter       : 12.44
    Classifications            : SB(r)c              
    
    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:
    17 Redshift data point(s)      56 photometric data point(s)      7 Diameter data point(s)      

    QUANTITIES DERIVED FROM REDSHIFT for NGC 1784 (Details)(Back to INDEX)
    Calculated and Corrected Velocities
    V (Heliocentric)           :    2319 +/-      3 km/s      2004AJ....128...16K
    V (Kinematic LSR)          :    2300 +/-      3 km/s      1986MNRAS.221.1023K
    V (Galactocentric GSR)     :    2202 +/-      6 km/s      1991RC3.9.C...0000d
    V (Local Group)            :    2196 +/-      8 km/s      1996AJ....111..794K
    V (3K CMB)                 :    2318 +/-      3 km/s      1996ApJ...473..576F
    V (Virgo Infall only)      :    2184 +/-      8 km/s      2000ApJ...529..786M
    V (Virgo + GA only)        :    2284 +/-     11 km/s      2000ApJ...529..786M
    V (Virgo + GA + Shapley)   :    2291 +/-     11 km/s      2000ApJ...529..786M
    
    Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/-   5 km/sec/Mpc)
    D (Galactocentric GSR)     :    30.2 +/-    2.1 Mpc      (m-M) = 32.40 +/- 0.15 mag
    D (Local Group)            :    30.1 +/-    2.1 Mpc      (m-M) = 32.39 +/- 0.15 mag
    D (3K CMB)                 :    31.8 +/-    2.2 Mpc      (m-M) = 32.51 +/- 0.15 mag
    D (Virgo Infall only)      :    29.9 +/-    2.1 Mpc      (m-M) = 32.38 +/- 0.15 mag
    D (Virgo + GA only)        :    31.3 +/-    2.2 Mpc      (m-M) = 32.48 +/- 0.15 mag
    D (Virgo + GA + Shapley)   :    31.4 +/-    2.2 Mpc      (m-M) = 32.48 +/- 0.15 mag
    
    Scale at Hubble Flow Distances
    Scale (Galactocentric GSR) :     146 pc/arcsec =  0.146 kpc/arcsec =   8.77 kpc/arcmin =   0.53 Mpc/degree
    Scale (Local Group)        :     146 pc/arcsec =  0.146 kpc/arcsec =   8.75 kpc/arcmin =   0.53 Mpc/degree
    Scale (3K CMB)             :     154 pc/arcsec =  0.154 kpc/arcsec =   9.24 kpc/arcmin =   0.55 Mpc/degree
    Scale (Virgo Infall only)  :     145 pc/arcsec =  0.145 kpc/arcsec =   8.70 kpc/arcmin =   0.52 Mpc/degree
    Scale (Virgo + GA only)    :     152 pc/arcsec =  0.152 kpc/arcsec =   9.10 kpc/arcmin =   0.55 Mpc/degree
    Scale(Virgo + GA + Shapley):     152 pc/arcsec =  0.152 kpc/arcsec =   9.13 kpc/arcmin =   0.55 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 = 10.952 arcmin and Selected Redshift, defined by the Velocity Range: from to km/sec where V(Heliocentric) = 2319 km/sec
    Cosmology-Corrected Quantities [Ho = 73.00 km/sec/Mpc, Ωmatter = 0.27, Ωvacuum = 0.73] [Redshift 0.007731 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation] Luminosity Distance : 31.9 Mpc (m-M) = 32.52 mag Angular-Size Distance : 31.5 Mpc (m-M) = 32.49 mag Co-Moving Radial Distance : 31.7 Mpc (m-M) = 32.51 mag Co-Moving Tangential Dist. : 31.7 Mpc (m-M) = 32.51 mag Co-Moving Volume : 0.000133 Gpc^3 Light Travel-Time : 0.103 Gyr Age at Redshift 0.007731 : 13.196 Gyr Age of Universe : 13.299 Gyr Scale (Cosmology Corrected): 153 pc/arcsec = 0.153 kpc/arcsec = 9.15 kpc/arcmin = 0.55 Mpc/degree Surface Brightness Dimming : Flux Density per Unit Area = 0.96966; Magnitude per Unit Area = 0.03345 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 1784 (Back to INDEX)
     N/A 

    QUICK-LOOK ANGULAR & PHYSICAL DIAMETERS for NGC 1784 (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 270.00180.90... Moderate surface brightness 1968MCG4..C...0000V32.1621.55
    K_s (2MASS "total") 206.2098.9890 Diameter for "total" magnitude 20032MASX.C.......:20032MASX.C.......:24.5611.79
    NOTE: Physical diameters are derived using a scale of 0.1191 kpc/arcsec based on Average NED-D Metric Distance of (24.568 +/- 4.520) Mpc.
    The quantities quoted above have not necessarily been corrected for foreground extinction.

    View details for 7 Diameter data point(s) available in NED.

    EXTERNAL ARCHIVES AND SERVICES for NGC 1784 Help (Back to INDEX)
    Resources for Object NamesSite/Service
    Query SIMBAD by primary NED object name -- NGC 1784SIMBAD (CDS, Strasbourg, France)
    Revised New General Catalogue -- NGC 1784VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    Morphological Catalog of Galaxies -- MCG -02-13-042 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    2MASS Extended Source Images (JHKs) -- 2MASX J05052711-1152171 NASA/IPAC Infrared Science Archive (IRSA)
    2MASS Extended Source Images (JHKs) -- 2MASXi J0505268-115220 NASA/IPAC Infrared Science Archive (IRSA)
    IRAS Faint Source Catalog -- IRAS F05031-1156 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    Query 6dF Galaxy Redshift Survey -- 6dF J0505271-115217 6dF Galaxy Redshift Survey
    Catalogue of Principal Galaxies -- PGC 016716 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    Retrieve mean data from LEDA -- PGC 016716 The Lyon/Meudon Extragalactic Database (LEDA)
    NRAO/VLA Sky Survey (NVSS)
    Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- NGC 1784GALEX Mission Data Archive at MAST
    Explore IRSA resources with RADAR (10 arcsec search radius) -- NGC 1784NASA/IPAC Infrared Science Archive (IRSA)
    Resources for position 05h05m27.1s, -11d52m18s (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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