Date and Time of the Query: 2022-01-26 T22:42:49 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 1684

1 objects found in NED.    


 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 1684                       04h52m31.1s -03d06m22s G        4448  0.014838      12.9b    ...    59     0   32   18     9    5     0 Retrieve Retrieve 1   

Detailed information for each object

Object No. 1 - NGC 1684

INDEX for NGC 1684
Essential Data (jump to sub-section of this query report):

   Essential Note    
   Basic Data   
   Quantities Derived from Redshift    
   Redshift-Independent Distances
   Quick-Look Photometry and Luminosities
   Quick-Look Angular and Physical Sizes
   Foreground Galactic Extinction    
   External Services
Detailed Data (NED queries):
  • Images
  • 32 Photometric data point(s) and SED   
  • Spectra   
    Redshift-Independent Distances
    59 Reference(s)   
    18 Position data point(s)
    9 Redshift data point(s)   
    5 Diameter data point(s)   
    RC3 data    

    ESSENTIAL NOTE for NGC 1684 (Back to INDEX)

    Object Names Type Object Names Type
    NGC 1684G LQAC 073-003 001 G
    MCG -01-13-031 G PGC 016219 G
    WISEA J045231.09-030621.6 IrS PMN J0452-0306 RadioS
    2MASX J04523116-0306220 IrS NVSS J045231-030622 RadioS
    2MASXi J0452311-030621 IrS OCARS 0450-031 RadioS
    IRAS 04500-0311 IrS 1RXS J045231.4-030557 XrayS
    IRAS F04500-0311 IrS 1WGA J0452.5-0306 XrayS
    AKARI J0452311-030622 IrS 2XMM J045231.0-030621 XrayS
    6dF J0452312-030622 G 1AXG J045231-0306 XrayS
    6dFGSv 02430 G [HRT2007] J045231-030645 RadioS
    LDCE 0351 NED012 G [DZ2015] 506-01 G
    HDCE 0325 NED010 G    

    COORDINATES for NGC 1684 (Back to INDEX)

    Position Reference:20002MASS.2.......:

    Reference    Frame     Longitude    Latitude        RA           DEC      Uncertainty Ellipse (arcsec)
                           (degrees)   (degrees)                              Semimajor Semiminor  PA(deg)
    Equatorial (B1950.0)  72.5038145  -3.1883123 04h50m00.915s -03d11m17.92s  4.50E-01  4.50E-01    0
    Equatorial (J2000.0)  73.1297917  -3.1060556 04h52m31.150s -03d06m21.80s  4.50E-01  4.50E-01    0
    Ecliptic   (B1950.0)  70.5812655 -25.4620067                              4.50E-01  4.50E-01    0
    Ecliptic   (J2000.0)  71.2805009 -25.4556692                              4.50E-01  4.50E-01    0
    Galactic             201.3585418 -27.7368123                              4.50E-01  4.50E-01    0
    SuperGalactic        315.9863799 -57.3348372                              4.50E-01  4.50E-01    0
    Additional detailed measurements with references are also available by clicking below:
    18 Position data point(s)


    3 Distances found in NED View 3 Individual Distance Measurement(s) for NGC 1684

    Summary Statistics computed by NED from 3 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 1684 Distance Modulus
    Metric Distance
    Mean 34.14 67.567
    Std. Dev. 0.23 7.322
    Min. 33.94 61.500
    Max. 34.39 75.700
    Median 34.08 65.500

    TypeAs PublishedNED HomogenizedFlagReference Code
    Galaxy MorphologycD pec?cD pec?...1991RC3.9.C...0000d
    Distance IndicatorTully-FisherTully-Fisher...2007A&A...465...71T
    3 Detailed Classification(s)

    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]0.2520.2110.1590.1260.0870.2460.1920.1330.0990.0730.0410.0260.0180.009
    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]0.3110.2470.1900.1530.1110.2950.2170.1570.1190.0850.0520.0330.0210.009

    Galactic Extinction based on H I Column Densities and Galaxy Counts
    (Burstein & Heiles; 1982AJ.....87.1165B) assuming Rv = 3.1:
    AB = 0.130 mag
    See Notes on Galactic Extinction for important caveats.

    BASIC DATA for NGC 1684 (Back to INDEX)
    Helio. Radial Velocity     :      4448 +/-       13 km/s      
    Redshift                   :  0.014838 +/- 0.000044        2015ApJS..218...10V
    Major Diameter (arcmin)    :   2.5
    Minor Diameter (arcmin)    :   1.7
    Magnitude and Filter       : 12.9b
    Classifications            : E+ pec:             
    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:
    9 Redshift data point(s)      32 photometric data point(s)      5 Diameter data point(s)      

    Calculated and Corrected Velocities
    V (Heliocentric)           :    4448 +/-     13 km/s      2015ApJS..218...10V
    V (Kinematic LSR)          :    4431 +/-     13 km/s      1986MNRAS.221.1023K
    V (Galactocentric GSR)     :    4363 +/-     14 km/s      1991RC3.9.C...0000d
    V (Local Group)            :    4371 +/-     14 km/s      1996AJ....111..794K
    V (3K CMB)                 :    4419 +/-     13 km/s      1996ApJ...473..576F
    V (Virgo Infall only)      :    4326 +/-     14 km/s      2000ApJ...529..786M
    V (Virgo + GA only)        :    4367 +/-     15 km/s      2000ApJ...529..786M
    V (Virgo + GA + Shapley)   :    4373 +/-     15 km/s      2000ApJ...529..786M
    Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/-   5 km/sec/Mpc)
    D (Galactocentric GSR)     :    59.8 +/-    4.2 Mpc      (m-M) = 33.88 +/- 0.15 mag
    D (Local Group)            :    59.9 +/-    4.2 Mpc      (m-M) = 33.89 +/- 0.15 mag
    D (3K CMB)                 :    60.5 +/-    4.2 Mpc      (m-M) = 33.91 +/- 0.15 mag
    D (Virgo Infall only)      :    59.3 +/-    4.2 Mpc      (m-M) = 33.86 +/- 0.15 mag
    D (Virgo + GA only)        :    59.8 +/-    4.2 Mpc      (m-M) = 33.88 +/- 0.15 mag
    D (Virgo + GA + Shapley)   :    59.9 +/-    4.2 Mpc      (m-M) = 33.89 +/- 0.15 mag
    Scale at Hubble Flow Distances
    Scale (Galactocentric GSR) :     290 pc/arcsec =  0.290 kpc/arcsec =  17.39 kpc/arcmin =   1.04 Mpc/degree
    Scale (Local Group)        :     290 pc/arcsec =  0.290 kpc/arcsec =  17.42 kpc/arcmin =   1.04 Mpc/degree
    Scale (3K CMB)             :     294 pc/arcsec =  0.294 kpc/arcsec =  17.61 kpc/arcmin =   1.06 Mpc/degree
    Scale (Virgo Infall only)  :     287 pc/arcsec =  0.287 kpc/arcsec =  17.24 kpc/arcmin =   1.03 Mpc/degree
    Scale (Virgo + GA only)    :     290 pc/arcsec =  0.290 kpc/arcsec =  17.40 kpc/arcmin =   1.04 Mpc/degree
    Scale(Virgo + GA + Shapley):     290 pc/arcsec =  0.290 kpc/arcsec =  17.42 kpc/arcmin =   1.05 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 = 5.739 arcmin and Selected Redshift, defined by the Velocity Range: from to km/sec where V(Heliocentric) = 4448 km/sec
    Cosmology-Corrected Quantities [Ho = 73.00 km/sec/Mpc, Ωmatter = 0.27, Ωvacuum = 0.73] [Redshift 0.014742 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation] Luminosity Distance : 61.2 Mpc (m-M) = 33.94 mag Angular-Size Distance : 59.5 Mpc (m-M) = 33.87 mag Co-Moving Radial Distance : 60.4 Mpc (m-M) = 33.90 mag Co-Moving Tangential Dist. : 60.4 Mpc (m-M) = 33.90 mag Co-Moving Volume : 0.000921 Gpc^3 Light Travel-Time : 0.195 Gyr Age at Redshift 0.014742 : 13.103 Gyr Age of Universe : 13.299 Gyr Scale (Cosmology Corrected): 288 pc/arcsec = 0.288 kpc/arcsec = 17.30 kpc/arcmin = 1.04 Mpc/degree Surface Brightness Dimming : Flux Density per Unit Area = 0.94314; Magnitude per Unit Area = 0.06356 mag
    To change Cosmological Input Parameters for Derived Quantities: Enter Your Preferred Values and click on "Submit Changed Hubble Parameters for this object" button
    Correct Redshift To the Reference Frame defined by: as Input for Calculation of the Distances and Cosmology-Corrected Quantities


    The brightest flux in each of the following spectral regions, when available:
    Gamma-Ray (ν > 2E19 Hz); X-Ray (2E19 Hz > ν > 2E16 Hz); Ultraviolet (2E16 Hz > ν > 9E14 Hz); Visual (9E14 Hz > ν > 3E14 Hz);
    Near-Infrared (3E14 Hz > ν > 6E13 Hz); Mid-Infrared (6E13 Hz > ν > 7.5E12 Hz); Far-Infrared (7.5E12 Hz > ν > 1E12 Hz);
    Sub-Millimeter (1E12 Hz > ν > 3E11 Hz); Millimeter (3E11 Hz > ν > 3E10 Hz); Radio (3E10 Hz > ν).

    Band Apparent Mag or Flux Refcode Absolute Mag or νLν [W] νLν [L(Bolometric)]
    Millimeter 0.00E+00 +/- -NaN [W] 0.00E+00 +/- -NaN
    NOTE: The above quantities are derived using an estimated Distance Modulus of (=\P=\O=\@=Z=WI  +/- ) mag corresponding to
    a Metric Distance of (= =w=e?=$6=0d=7t=:C=6xS=1 =*V9=% f=! =y =%<Average NED-D value.
    The quantities quoted above have not necessarily been corrected for foreground extinction, and no K-Corrections have been applied.

    View details and SED for 32 Photometric data point(s) available in NED.


    The largest diameters in the Visual and Near-Infrared spectral regions, when available:

    Passband Apparent Major Axis
    (2a) [arcsec]
    Apparent Minor Axis
    (2b) [arcsec]
    Reference Level RefcodePhysical Major Axis
    (2a) [kpc]
    Physical Minor Axis
    (2b) [kpc]
    RC3 D_25; R_25 (blue) 147.30100.16... 25.0 B-mag arcsec^-2^ 1991RC3.9.C...0000d48.2532.81
    K_s (2MASS "total") 147.30114.8990 Diameter for "total" magnitude 20032MASX.C.......:20032MASX.C.......:48.2537.64
    NOTE: Physical diameters are derived using a scale of 0.3276 kpc/arcsec based on Average NED-D Metric Distance of (67.567 +/- 7.322) Mpc.
    The quantities quoted above have not necessarily been corrected for foreground extinction.

    View details for 5 Diameter data point(s) available in NED.

    Resources for Object NamesSite/Service
    Query SIMBAD by primary NED object name -- NGC 1684SIMBAD (CDS, Strasbourg, France)
    Revised New General Catalogue -- NGC 1684VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    Morphological Catalog of Galaxies -- MCG -01-13-031 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    2MASS Extended Source Images (JHKs) -- 2MASX J04523116-0306220 NASA/IPAC Infrared Science Archive (IRSA)
    2MASS Extended Source Images (JHKs) -- 2MASXi J0452311-030621 NASA/IPAC Infrared Science Archive (IRSA)
    IRAS Faint Source Catalog -- IRAS F04500-0311 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    Query 6dF Galaxy Redshift Survey -- 6dF J0452312-030622 6dF Galaxy Redshift Survey
    Query 6dF Galaxy Redshift Survey -- 6dFGSv 02430 6dF Galaxy Redshift Survey
    Catalogue of Principal Galaxies -- PGC 016219 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    Retrieve mean data from LEDA -- PGC 016219 The Lyon/Meudon Extragalactic Database (LEDA)
    Parkes-MIT-NRAO 4.85GHz Surveys -- PMN J0452-0306 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    NRAO/VLA Sky Survey (NVSS)
    Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- NGC 1684GALEX Mission Data Archive at MAST
    Explore IRSA resources with RADAR (10 arcsec search radius) -- NGC 1684NASA/IPAC Infrared Science Archive (IRSA)
    Resources for position 04h52m31.1s, -03d06m22s (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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