NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2018-11-13 T16:30:14 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 4931*


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 4931                       13h03m00.9s +28d01m57s G        5443  0.018156      13.9g    ...   108     1   63   18    12   11     1 Retrieve Retrieve 1   

Detailed information for each object


Object No. 1 - NGC 4931

INDEX for NGC 4931
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
   
63 Photometric data point(s) and SED   
Spectra   
Redshift-Independent Distances
108 Reference(s)   
18 Position data point(s)
12 Redshift data point(s)   
11 Diameter data point(s)   
1 Note(s)   
1 Association(s)   
UGC data    
RC3 data    

ESSENTIAL NOTE for NGC 4931 (Back to INDEX)
UZC has V = 5849 +- 70 km/sec.                                                  

CROSS-IDENTIFICATIONS for NGC 4931 (Back to INDEX)
Object Names Type Object Names Type
NGC 4931G ASK 580655.0 G
UGC 08154 G EON J195.754+28.032 G
CGCG 160-118 G FOCA 0196 G
CGCG 1300.6+2817 G MAPS-NGP O_323_0931014 G
MCG +05-31-114 G NGP9 F323-0934749 G
2MASX J13030089+2801573 IrS NSA 104257 G
2MASXi J1303009+280157 IrS PGC 045055 G
2MASS J13030088+2801571 IrS SSTSL2 J130300.87+280157.2 IrS
SDSS J130300.87+280156.9 G UZC J130300.9+280157 G
SDSS J130300.88+280157.0 G ABELL 1656:[D80] 164 G
GALEXASC J130300.92+280157.0 UvS ABELL 1656:[GMP83] 1176 G
GALEXMSC J130300.94+280155.5 UvS [KK90] 218 G
WBL 426-140 G [DFO95] 316 G
LDCE 0926 NED070 G [MHR2010] J195.7536+28.0325 VisS
HDCE 0753 NED003 G ABELL 1656:[EF2011] 4007 G
USGC U508 NED06 G [TTL2012] 353922 G
AGC 118154 G    

COORDINATES for NGC 4931 (Back to INDEX)

Position Reference:2007SDSS6.C...0000:

Reference    Frame     Longitude    Latitude        RA           DEC      Uncertainty Ellipse (arcsec)
                       (degrees)   (degrees)                              Semimajor Semiminor  PA(deg)
Equatorial (B1950.0)  195.152688   28.300779 13h00m36.645s +28d18m02.80s  5.00E-01  5.00E-01    0
Equatorial (J2000.0)  195.753648   28.032485 13h03m00.875s +28d01m56.95s  5.00E-01  5.00E-01    0
Ecliptic   (B1950.0)  181.517288   31.771210                              5.00E-01  5.00E-01    0
Ecliptic   (J2000.0)  182.219830   31.770495                              5.00E-01  5.00E-01    0
Galactic               53.014172   87.280144                              5.00E-01  5.00E-01    0
SuperGalactic          89.729248    9.026590                              5.00E-01  5.00E-01    0
Additional detailed measurements with references are also available by clicking below:
18 Position data point(s)

REDSHIFT-INDEPENDENT DISTANCES for NGC 4931 (Back to INDEX)
 N/A 

CLASSIFICATIONS (TYPES, ATTRIBUTES) for NGC 4931 (Back to INDEX)
TypeAs PublishedNED HomogenizedFlagReference Code
HierarchyGMGroup member...1980ApJS...42..565D
Galaxy MorphologyS0 edge-onS0 edge-on...1991RC3.9.C...0000d
5 Detailed Classification(s)


FOREGROUND GALACTIC EXTINCTION for NGC 4931 (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]0.0540.0430.0330.0270.0190.0510.0380.0270.0210.0150.0090.0060.0040.002


Galactic Extinction based on H I Column Densities and Galaxy Counts
(Burstein & Heiles; 1982AJ.....87.1165B) assuming Rv = 3.1:
AB = 0.070 mag
See Notes on Galactic Extinction for important caveats.

BASIC DATA for NGC 4931 (Back to INDEX)
Helio. Radial Velocity     :      5443 +/-        7 km/s      
Redshift                   :  0.018156 +/- 0.000022        2000MNRAS.313..469S
Major Diameter (arcmin)    :   1.7
Minor Diameter (arcmin)    :   0.7
Magnitude and Filter       : 13.9g
Classifications            : SA0                 

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:
12 Redshift data point(s)      63 photometric data point(s)      11 Diameter data point(s)      

QUANTITIES DERIVED FROM REDSHIFT for NGC 4931 (Details)(Back to INDEX)
Calculated and Corrected Velocities
V (Heliocentric)           :    5443 +/-      7 km/s      2000MNRAS.313..469S
V (Kinematic LSR)          :    5452 +/-      7 km/s      1986MNRAS.221.1023K
V (Galactocentric GSR)     :    5459 +/-      7 km/s      1991RC3.9.C...0000d
V (Local Group)            :    5432 +/-      7 km/s      1996AJ....111..794K
V (3K CMB)                 :    5710 +/-     20 km/s      1996ApJ...473..576F
V (Virgo Infall only)      :    5666 +/-     18 km/s      2000ApJ...529..786M
V (Virgo + GA only)        :    5996 +/-     29 km/s      2000ApJ...529..786M
V (Virgo + GA + Shapley)   :    6032 +/-     29 km/s      2000ApJ...529..786M

Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/-   5 km/sec/Mpc)
D (Galactocentric GSR)     :    74.8 +/-    5.2 Mpc      (m-M) = 34.37 +/- 0.15 mag
D (Local Group)            :    74.4 +/-    5.2 Mpc      (m-M) = 34.36 +/- 0.15 mag
D (3K CMB)                 :    78.2 +/-    5.5 Mpc      (m-M) = 34.47 +/- 0.15 mag
D (Virgo Infall only)      :    77.6 +/-    5.4 Mpc      (m-M) = 34.45 +/- 0.15 mag
D (Virgo + GA only)        :    82.1 +/-    5.8 Mpc      (m-M) = 34.57 +/- 0.15 mag
D (Virgo + GA + Shapley)   :    82.6 +/-    5.8 Mpc      (m-M) = 34.59 +/- 0.15 mag

Scale at Hubble Flow Distances
Scale (Galactocentric GSR) :     363 pc/arcsec =  0.363 kpc/arcsec =  21.75 kpc/arcmin =   1.31 Mpc/degree
Scale (Local Group)        :     361 pc/arcsec =  0.361 kpc/arcsec =  21.65 kpc/arcmin =   1.30 Mpc/degree
Scale (3K CMB)             :     379 pc/arcsec =  0.379 kpc/arcsec =  22.75 kpc/arcmin =   1.37 Mpc/degree
Scale (Virgo Infall only)  :     376 pc/arcsec =  0.376 kpc/arcsec =  22.58 kpc/arcmin =   1.35 Mpc/degree
Scale (Virgo + GA only)    :     398 pc/arcsec =  0.398 kpc/arcsec =  23.89 kpc/arcmin =   1.43 Mpc/degree
Scale(Virgo + GA + Shapley):     401 pc/arcsec =  0.401 kpc/arcsec =  24.03 kpc/arcmin =   1.44 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 = 4.161 arcmin and Selected Redshift, defined by the Velocity Range: from to km/sec where V(Heliocentric) = 5443 km/sec
Cosmology-Corrected Quantities [Ho = 73.00 km/sec/Mpc, Ωmatter = 0.27, Ωvacuum = 0.73] [Redshift 0.019045 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation] Luminosity Distance : 79.4 Mpc (m-M) = 34.50 mag Angular-Size Distance : 76.5 Mpc (m-M) = 34.42 mag Co-Moving Radial Distance : 77.9 Mpc (m-M) = 34.46 mag Co-Moving Tangential Dist. : 77.9 Mpc (m-M) = 34.46 mag Co-Moving Volume : 0.00198 Gpc^3 Light Travel-Time : 0.252 Gyr Age at Redshift 0.019045 : 13.047 Gyr Age of Universe : 13.299 Gyr Scale (Cosmology Corrected): 371 pc/arcsec = 0.371 kpc/arcsec = 22.24 kpc/arcmin = 1.33 Mpc/degree Surface Brightness Dimming : Flux Density per Unit Area = 0.92731; Magnitude per Unit Area = 0.08193 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 4931 (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)]
UltravioletNUV (GALEX) AB 18.6562 +/- 0.0242115 mag 2012GMSC..C...0000S-15.84 +/- 0.50 [mag] 3.16E+08 +/- 6.37E+07
Visualz (SDSS Model) AB 12.446 +/- 0.002 asinh mag 2007SDSS6.C...0000:-22.05 +/- 0.50 [mag] 2.39E+10 +/- 4.78E+09
Near-InfraredH_T(25)_ 9.87 +/- 0.15 mag 1996ApL&C..35....1G-24.63 +/- 0.52 [mag] 4.47E+10 +/- 1.11E+10
Mid-Infrared24 microns (MIPS) 2.11 milliJy 2010MNRAS.404.1745M 2.02E+34 [W] 5.26E+07
Radio2380 MHz -3. +/- 3. milliJy 1978ApJS...36...53D -5.38E+30 +/- -5.49E+30 [W] -1.40E+04 +/- -1.43E+04
NOTE: The above quantities are derived using a Distance Modulus of 34.50 mag corresponding to
a Luminosity Distance of 79.4 Mpc [assuming 10%uncertainty] using the Cosmology-Corrected Quantities.
The quantities quoted above have not necessarily been corrected for foreground extinction, and no K-Corrections have been applied.

View details and SED for 63 Photometric data point(s) available in NED.

QUICK-LOOK ANGULAR & PHYSICAL DIAMETERS for NGC 4931 (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) 106.6039.4475 25.0 mag arcsec^-2^ 2007SDSS6.C...0000:42.7015.80
K_s (2MASS "total") 74.1040.0180 Diameter for "total" magnitude 20032MASX.C.......:20032MASX.C.......:29.6816.03
NOTE: At z <= 0.5, physical diameters are derived using a Scale at the Hubble Flow Distance (Virgo + GA + Shapley) of 0.401 kpc/arcsec.
The quantities quoted above have not necessarily been corrected for foreground extinction.

View details for 11 Diameter data point(s) available in NED.

EXTERNAL ARCHIVES AND SERVICES for NGC 4931 Help (Back to INDEX)
Resources for Object NamesSite/Service
Query SIMBAD by primary NED object name -- NGC 4931SIMBAD (CDS, Strasbourg, France)
Revised New General Catalogue -- NGC 4931VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Uppsala General Catalog -- UGC 08154 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Original Zwicky Catalog -- CGCG 160-118 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 +05-31-114 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
2MASS Extended Source Images (JHKs) -- 2MASX J13030089+2801573 NASA/IPAC Infrared Science Archive (IRSA)
2MASS Extended Source Images (JHKs) -- 2MASXi J1303009+280157 NASA/IPAC Infrared Science Archive (IRSA)
version
SDSS Sky Server
Catalogue of Principal Galaxies -- PGC 045055 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Retrieve mean data from LEDA -- PGC 045055 The Lyon/Meudon Extragalactic Database (LEDA)
Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- NGC 4931GALEX Mission Data Archive at MAST
Explore IRSA resources with RADAR (10 arcsec search radius) -- NGC 4931NASA/IPAC Infrared Science Archive (IRSA)
Resources for position 13h03m00.9s, +28d01m57s (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)
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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