NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2018-11-14 T22:52:37 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    ...   133     5   42    9    13    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
   
42 Photometric data point(s) and SED   
Spectra   
Redshift-Independent Distances
133 Reference(s)   
9 Position data point(s)
13 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
2MASX J05052711-1152171 IrS LDCE 0371 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:
9 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:
13 Redshift data point(s)      42 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)

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).

Spectral
Region
Band Apparent Mag or Flux Refcode Absolute Mag or νLν [W] νLν [L(Bolometric)]
X-Ray0.2-4 keV (EINSTEIN) <2.62E-13 ergs sec^-1^ cm^-2^ 1992ApJS...80..531F < 1.89E+33 [W] < 4.92E+06
VisualV (V_T^0) 11.04 mag 1991RC3.9.C...0000d-20.88 [mag] 1.43E+10
Near-InfraredH 8.853 +/- 0.019 mag 20032MASX.C.......:-23.07 +/- 0.17 [mag] 1.01E+10 +/- 7.23E+08
Mid-Infrared25 microns (IRAS) 2.495E-01 +/- 15 % Jy 1990IRASF.C...0000M 2.16E+35 +/- 2.77E+34 [W] 5.61E+08 +/- 7.19E+07
Far-Infrared100 microns (IRAS) 8.864E+00 +/- 8 % Jy 1990IRASF.C...0000M 1.92E+36 +/- 2.04E+35 [W] 4.99E+09 +/- 5.29E+08
Radio1.4GHz 35.1 +/- 4.1 milliJy 1998AJ....115.1693C 3.55E+30 +/- 4.82E+29 [W] 9.23E+03 +/- 1.25E+03
NOTE: The above quantities are derived using an estimated Distance Modulus of (31.92 +/- 0.41) mag corresponding to
a Metric Distance of (24.568 +/- 4.520) Mpc using the 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 42 Photometric data point(s) available in NED.

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 Point Source Catalog -- IRAS 05030-1156 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
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)
Explore resources with DataScope (15 arcmin 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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