NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-08-22 T11:38:54 PDT
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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 7424


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 7424                       22h57m18.4s -41d04m14s G         939  0.003132      10.96    ...   208     6   56   10    13   19     0 Retrieve Retrieve 1   

Detailed information for each object


Object No. 1 - NGC 7424

INDEX for NGC 7424
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
208 Reference(s)   
10 Position data point(s)
13 Redshift data point(s)   
19 Diameter data point(s)   
6 Note(s)   
ESO data    
RC3 data    

ESSENTIAL NOTE for NGC 7424 (Back to INDEX)
Extended HIPASS source                                                          

CROSS-IDENTIFICATIONS for NGC 7424 (Back to INDEX)
Object Names Type Object Names Type
NGC 7424G ESO-LV 3460190 G
ESO 346- G 019 G 6dF J2257183-410414 G
ESO 225428-4120.2 G 6dF J2257184-410414 G
MCG -07-47-008 G LDCE 1547 NED008 G
2MASX J22571836-4104140 IrS HDCE 1226 NED001 G
2MASS J22571841-4104145 IrS SSRS GROUP 40 NED13 G
IRAS 22544-4120 IrS APMBGC 346+036+065 G
IRAS F22544-4120 IrS HIPASS J2257-41 RadioS
CGS 592 G PGC 070096 G
SGC 225428-4120.2 G NGC 7424:[SKB2006] 06 XrayS
     

COORDINATES for NGC 7424 (Back to INDEX)

Position Reference:20032MASX.C.......:

Reference    Frame     Longitude    Latitude        RA           DEC      Uncertainty Ellipse (arcsec)
                       (degrees)   (degrees)                              Semimajor Semiminor  PA(deg)
Equatorial (B1950.0)  343.618502  -41.338235  22h54m28.44s  -41d20m17.6s  1.25E+00  1.25E+00    0
Equatorial (J2000.0)  344.326542  -41.070583  22h57m18.37s  -41d04m14.1s  1.25E+00  1.25E+00    0
Ecliptic   (B1950.0)  327.603952  -31.447427                              1.25E+00  1.25E+00    0
Ecliptic   (J2000.0)  328.306134  -31.450370                              1.25E+00  1.25E+00    0
Galactic              354.798841  -62.753460                              1.25E+00  1.25E+00    0
SuperGalactic         248.314823   10.293684                              1.25E+00  1.25E+00    0
Additional detailed measurements with references are also available by clicking below:
10 Position data point(s)

REDSHIFT-INDEPENDENT DISTANCES for NGC 7424 (Back to INDEX)

5 Distances found in NED View 5 Individual Distance Measurement(s) for NGC 7424

Summary Statistics computed by NED from 5 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 7424 Distance Modulus
(mag)
Metric Distance
(Mpc)
Mean 29.81 9.312
Std. Dev. 0.44 1.787
Min. 29.12 6.670
Max. 30.30 11.500
Median 29.97 9.860

CLASSIFICATIONS (TYPES, ATTRIBUTES) for NGC 7424 (Back to INDEX)
TypeAs PublishedNED HomogenizedFlagReference Code
HierarchyG?Possible group member...1978AJ.....83..904S
KinematicsHI line widthHI line width...1989MNRAS.236..171D
Luminosity Class6.0LC III-IV...1991RC3.9.C...0000d
Galaxy MorphologySAB(rs)cdSAB(rs)cd...1991RC3.9.C...0000d
Distance IndicatorTully-FisherTully-Fisher...1988NBGC.C....0000T
36 Detailed Classification(s)


FOREGROUND GALACTIC EXTINCTION for NGC 7424 (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]0.0460.0390.0290.0230.0160.0450.0350.0240.0180.0130.0080.0050.0030.002
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]0.0580.0460.0350.0290.0210.0550.0400.0290.0220.0160.0100.0060.0040.002

See Notes on Galactic Extinction for important caveats.

BASIC DATA for NGC 7424 (Back to INDEX)
Helio. Radial Velocity     :       939 +/-        2 km/s      
Redshift                   :  0.003132 +/- 0.000007        2004AJ....128...16K
Major Diameter (arcmin)    :   9.5
Minor Diameter (arcmin)    :   8.1
Magnitude and Filter       : 10.96
Classifications            : SAB(rs)cd           

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)      56 photometric data point(s)      19 Diameter data point(s)      

QUANTITIES DERIVED FROM REDSHIFT for NGC 7424 (Details)(Back to INDEX)
Calculated and Corrected Velocities
V (Heliocentric)           :     939 +/-      2 km/s      2004AJ....128...16K
V (Kinematic LSR)          :     936 +/-      2 km/s      1986MNRAS.221.1023K
V (Galactocentric GSR)     :     927 +/-      2 km/s      1991RC3.9.C...0000d
V (Local Group)            :     938 +/-      2 km/s      1996AJ....111..794K
V (3K CMB)                 :     692 +/-     17 km/s      1996ApJ...473..576F
V (Virgo Infall only)      :     875 +/-      5 km/s      2000ApJ...529..786M
V (Virgo + GA only)        :     953 +/-      7 km/s      2000ApJ...529..786M
V (Virgo + GA + Shapley)   :     959 +/-      7 km/s      2000ApJ...529..786M

Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/-   5 km/sec/Mpc)
D (Galactocentric GSR)     :    12.7 +/-    0.9 Mpc      (m-M) = 30.52 +/- 0.15 mag
D (Local Group)            :    12.8 +/-    0.9 Mpc      (m-M) = 30.54 +/- 0.15 mag
D (3K CMB)                 :     9.5 +/-    0.7 Mpc      (m-M) = 29.88 +/- 0.16 mag
D (Virgo Infall only)      :    12.0 +/-    0.8 Mpc      (m-M) = 30.39 +/- 0.15 mag
D (Virgo + GA only)        :    13.1 +/-    0.9 Mpc      (m-M) = 30.58 +/- 0.15 mag
D (Virgo + GA + Shapley)   :    13.1 +/-    0.9 Mpc      (m-M) = 30.59 +/- 0.15 mag

Scale at Hubble Flow Distances
Scale (Galactocentric GSR) :      62 pc/arcsec =  0.062 kpc/arcsec =   3.69 kpc/arcmin =   0.22 Mpc/degree
Scale (Local Group)        :      62 pc/arcsec =  0.062 kpc/arcsec =   3.74 kpc/arcmin =   0.22 Mpc/degree
Scale (3K CMB)             :      46 pc/arcsec =  0.046 kpc/arcsec =   2.76 kpc/arcmin =   0.17 Mpc/degree
Scale (Virgo Infall only)  :      58 pc/arcsec =  0.058 kpc/arcsec =   3.49 kpc/arcmin =   0.21 Mpc/degree
Scale (Virgo + GA only)    :      63 pc/arcsec =  0.063 kpc/arcsec =   3.80 kpc/arcmin =   0.23 Mpc/degree
Scale(Virgo + GA + Shapley):      64 pc/arcsec =  0.064 kpc/arcsec =   3.82 kpc/arcmin =   0.23 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 = 26.174 arcmin and Selected Redshift, defined by the Velocity Range: from to km/sec where V(Heliocentric) = 939 km/sec
Cosmology-Corrected Quantities [Ho = 73.00 km/sec/Mpc, Ωmatter = 0.27, Ωvacuum = 0.73] [Redshift 0.002307 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation] Luminosity Distance : 9.49 Mpc (m-M) = 29.89 mag Angular-Size Distance : 9.45 Mpc (m-M) = 29.88 mag Co-Moving Radial Distance : 9.47 Mpc (m-M) = 29.88 mag Co-Moving Tangential Dist. : 9.47 Mpc (m-M) = 29.88 mag Co-Moving Volume : 3.56e-06 Gpc^3 Light Travel-Time : 0.031 Gyr Age at Redshift 0.002307 : 13.268 Gyr Age of Universe : 13.299 Gyr Scale (Cosmology Corrected): 46 pc/arcsec = 0.046 kpc/arcsec = 2.75 kpc/arcmin = 0.16 Mpc/degree Surface Brightness Dimming : Flux Density per Unit Area = 0.99083; Magnitude per Unit Area = 0.01001 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 7424 (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)]
Ultraviolet2315 A (GALEX) AB 12.01 +/- 0.01 mag 2006ApJS..164...38I-17.80 +/- 0.43 [mag] 2.00E+09 +/- 3.44E+08
VisualR (Cousins) (R_T) 10.02 +/- 0.09 mag 1989ESOLV.C...0000L-19.79 +/- 0.44 [mag] 3.81E+09 +/- 7.33E+08
Near-InfraredJ_tot (2MASS LGA) 9.659 +/- 0.028 mag 2003AJ....125..525J-20.15 +/- 0.43 [mag] 1.41E+09 +/- 2.45E+08
Mid-Infrared12 microns (IRAS) <1.946E-01 Jy 1990IRASF.C...0000M < 5.06E+34 [W] < 1.32E+08
Far-Infrared100 microns (IRAS) 7.833E+00 +/- 6 % Jy 1990IRASF.C...0000M 2.44E+35 +/- 4.43E+34 [W] 6.34E+08 +/- 1.15E+08
NOTE: The above quantities are derived using an estimated Distance Modulus of (29.81 +/- 0.44) mag corresponding to
a Metric Distance of (9.312 +/- 1.787) 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 56 Photometric data point(s) available in NED.

QUICK-LOOK ANGULAR & PHYSICAL DIAMETERS for NGC 7424 (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]
ESO-Uppsala "Quick Blue" IIa-O960.00960.00... About 25.5 B-mag arcsec^-2^ 1982ESOU..C...0000L43.3443.34
K_s (LGA/2MASS "total") 230.20149.63125 Diameter for "total" magnitude 2003AJ....125..525J2003AJ....125..525J10.396.76
NOTE: Physical diameters are derived using a scale of 0.0451 kpc/arcsec based on Average NED-D Metric Distance of (9.312 +/- 1.787) Mpc.
The quantities quoted above have not necessarily been corrected for foreground extinction.

View details for 19 Diameter data point(s) available in NED.

EXTERNAL ARCHIVES AND SERVICES for NGC 7424 Help (Back to INDEX)
Resources for Object NamesSite/Service
Query SIMBAD by primary NED object name -- NGC 7424SIMBAD (CDS, Strasbourg, France)
Revised New General Catalogue -- NGC 7424VizieR Catalog Query (U.S. mirror, CfA/Harvard)
ESO/Uppsala Survey -- ESO 346- G 019 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Morphological Catalog of Galaxies -- MCG -07-47-008 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
2MASS Extended Source Images (JHKs) -- 2MASX J22571836-4104140 NASA/IPAC Infrared Science Archive (IRSA)
IRAS Point Source Catalog -- IRAS 22544-4120 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
IRAS Faint Source Catalog -- IRAS F22544-4120 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
The ESO-LV catalog-- ESO-LV 3460190 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Query 6dF Galaxy Redshift Survey -- 6dF J2257183-410414 6dF Galaxy Redshift Survey
Query 6dF Galaxy Redshift Survey -- 6dF J2257184-410414 6dF Galaxy Redshift Survey
Catalogue of Principal Galaxies -- PGC 070096 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Retrieve mean data from LEDA -- PGC 070096 The Lyon/Meudon Extragalactic Database (LEDA)
Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- NGC 7424GALEX Mission Data Archive at MAST
Explore IRSA resources with RADAR (10 arcsec search radius) -- NGC 7424NASA/IPAC Infrared Science Archive (IRSA)
Resources for position 22h57m18.4s, -41d04m14s (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)
The NRAO Data Archive System

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