NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2018-11-14 T05:00:55 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 4956*


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 4956                       13h05m00.9s +35d10m41s G        4750  0.015844      13.26    ...    54     0   46    8     3   10     0 Retrieve Retrieve 1   

Detailed information for each object


Object No. 1 - NGC 4956

INDEX for NGC 4956
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
   
46 Photometric data point(s) and SED   
Spectra   
Redshift-Independent Distances
54 Reference(s)   
8 Position data point(s)
3 Redshift data point(s)   
10 Diameter data point(s)   
UGC data    
RC3 data    

ESSENTIAL NOTE for NGC 4956 (Back to INDEX)
N/A

CROSS-IDENTIFICATIONS for NGC 4956 (Back to INDEX)
Object Names Type Object Names Type
NGC 4956G LDCE 0943 NED001 G
UGC 08177 G USGC U514 NED03 G
CGCG 189-017 G MAPS-NGP O_269_0996471 G
CGCG 1302.7+3527 G NGP9 F269-0996675 G
MCG +06-29-025 G NSA 142937 G
2MASX J13050097+3510413 IrS PGC 045236 G
2MASXi J1305009+351041 IrS UZC J130500.9+351041 G
2MASS J13050096+3510411 IrS LGG 329:[G93] 001 G
SDSS J130500.94+351040.9 G [M98j] 187 NED03 G
ISOSS J13050+3510 IrS [SLK2004] 0775 IrS
CG 1079 G    

COORDINATES for NGC 4956 (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)  195.667469   35.445642 13h02m40.192s +35d26m44.31s  5.00E-01  5.00E-01    0
Equatorial (J2000.0)  196.253931   35.178032 13h05m00.943s +35d10m40.92s  5.00E-01  5.00E-01    0
Ecliptic   (B1950.0)  177.889691   38.285823                              5.00E-01  5.00E-01    0
Ecliptic   (J2000.0)  178.593356   38.285536                              5.00E-01  5.00E-01    0
Galactic              103.948830   81.443911                              5.00E-01  5.00E-01    0
SuperGalactic          82.733314   10.970478                              5.00E-01  5.00E-01    0
Additional detailed measurements with references are also available by clicking below:
8 Position data point(s)

REDSHIFT-INDEPENDENT DISTANCES for NGC 4956 (Back to INDEX)
 N/A 

CLASSIFICATIONS (TYPES, ATTRIBUTES) for NGC 4956 (Back to INDEX)
TypeAs PublishedNED HomogenizedFlagReference Code
HierarchyRGin a radial-velocity based grouping...1998Afz....41..308M
Galaxy MorphologyS0S0...1991RC3.9.C...0000d
7 Detailed Classification(s)


FOREGROUND GALACTIC EXTINCTION for NGC 4956 (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]0.0400.0340.0250.0200.0140.0390.0310.0210.0160.0120.0070.0040.0030.001
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]0.0510.0410.0310.0250.0180.0490.0360.0260.0200.0140.0090.0050.0030.001


Galactic Extinction based on H I Column Densities and Galaxy Counts
(Burstein & Heiles; 1982AJ.....87.1165B) assuming Rv = 3.1:
AB = 0.010 mag
See Notes on Galactic Extinction for important caveats.

BASIC DATA for NGC 4956 (Back to INDEX)
Helio. Radial Velocity     :      4750 +/-       21 km/s      
Redshift                   :  0.015844 +/- 0.000070        1995ApJS...99..391H
Major Diameter (arcmin)    :   1.5
Minor Diameter (arcmin)    :   1.5
Magnitude and Filter       : 13.26
Classifications            : S0                  

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:
3 Redshift data point(s)      46 photometric data point(s)      10 Diameter data point(s)      

QUANTITIES DERIVED FROM REDSHIFT for NGC 4956 (Details)(Back to INDEX)
Calculated and Corrected Velocities
V (Heliocentric)           :    4750 +/-     21 km/s      1995ApJS...99..391H
V (Kinematic LSR)          :    4760 +/-     21 km/s      1986MNRAS.221.1023K
V (Galactocentric GSR)     :    4790 +/-     21 km/s      1991RC3.9.C...0000d
V (Local Group)            :    4774 +/-     21 km/s      1996AJ....111..794K
V (3K CMB)                 :    4989 +/-     27 km/s      1996ApJ...473..576F
V (Virgo Infall only)      :    5005 +/-     27 km/s      2000ApJ...529..786M
V (Virgo + GA only)        :    5281 +/-     33 km/s      2000ApJ...529..786M
V (Virgo + GA + Shapley)   :    5314 +/-     33 km/s      2000ApJ...529..786M

Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/-   5 km/sec/Mpc)
D (Galactocentric GSR)     :    65.6 +/-    4.6 Mpc      (m-M) = 34.09 +/- 0.15 mag
D (Local Group)            :    65.4 +/-    4.6 Mpc      (m-M) = 34.08 +/- 0.15 mag
D (3K CMB)                 :    68.3 +/-    4.8 Mpc      (m-M) = 34.17 +/- 0.15 mag
D (Virgo Infall only)      :    68.6 +/-    4.8 Mpc      (m-M) = 34.18 +/- 0.15 mag
D (Virgo + GA only)        :    72.3 +/-    5.1 Mpc      (m-M) = 34.30 +/- 0.15 mag
D (Virgo + GA + Shapley)   :    72.8 +/-    5.1 Mpc      (m-M) = 34.31 +/- 0.15 mag

Scale at Hubble Flow Distances
Scale (Galactocentric GSR) :     318 pc/arcsec =  0.318 kpc/arcsec =  19.09 kpc/arcmin =   1.15 Mpc/degree
Scale (Local Group)        :     317 pc/arcsec =  0.317 kpc/arcsec =  19.02 kpc/arcmin =   1.14 Mpc/degree
Scale (3K CMB)             :     331 pc/arcsec =  0.331 kpc/arcsec =  19.88 kpc/arcmin =   1.19 Mpc/degree
Scale (Virgo Infall only)  :     332 pc/arcsec =  0.332 kpc/arcsec =  19.95 kpc/arcmin =   1.20 Mpc/degree
Scale (Virgo + GA only)    :     351 pc/arcsec =  0.351 kpc/arcsec =  21.04 kpc/arcmin =   1.26 Mpc/degree
Scale(Virgo + GA + Shapley):     353 pc/arcsec =  0.353 kpc/arcsec =  21.18 kpc/arcmin =   1.27 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 = 4.722 arcmin and Selected Redshift, defined by the Velocity Range: from to km/sec where V(Heliocentric) = 4750 km/sec
Cosmology-Corrected Quantities [Ho = 73.00 km/sec/Mpc, Ωmatter = 0.27, Ωvacuum = 0.73] [Redshift 0.016642 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation] Luminosity Distance : 69.2 Mpc (m-M) = 34.20 mag Angular-Size Distance : 67 Mpc (m-M) = 34.13 mag Co-Moving Radial Distance : 68.1 Mpc (m-M) = 34.17 mag Co-Moving Tangential Dist. : 68.1 Mpc (m-M) = 34.17 mag Co-Moving Volume : 0.00132 Gpc^3 Light Travel-Time : 0.220 Gyr Age at Redshift 0.016642 : 13.079 Gyr Age of Universe : 13.299 Gyr Scale (Cosmology Corrected): 325 pc/arcsec = 0.325 kpc/arcsec = 19.49 kpc/arcmin = 1.17 Mpc/degree Surface Brightness Dimming : Flux Density per Unit Area = 0.93611; Magnitude per Unit Area = 0.07168 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 4956 (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)]
Visualz (SDSS CModel) AB 11.651 asinh mag 2007SDSS6.C...0000:-22.55 [mag] 3.78E+10
Near-InfraredH 9.817 +/- 0.006 mag 20032MASX.C.......:-24.38 +/- 0.50 [mag] 3.29E+10 +/- 6.57E+09
Mid-Infrared12 microns (IRAS) 0.080 +/- 0.033 Jy 1994PrivC.U..J....K 1.15E+36 +/- 5.26E+35 [W] 2.98E+09 +/- 1.37E+09
Far-Infrared170 microns (ISO) 0.67 +/- 30 % Jy 2004A&A...422...39S 6.77E+35 +/- 2.44E+35 [W] 1.76E+09 +/- 6.34E+08
Radio2380 MHz -1. +/- 3. milliJy 1978ApJS...36...53D -1.37E+30 +/- -4.11E+30 [W] -3.55E+03 +/- -1.07E+04
NOTE: The above quantities are derived using a Distance Modulus of 34.20 mag corresponding to
a Luminosity Distance of 69.2 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 46 Photometric data point(s) available in NED.

QUICK-LOOK ANGULAR & PHYSICAL DIAMETERS for NGC 4956 (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) 92.5875.9236 25.0 mag arcsec^-2^ 2007SDSS6.C...0000:32.6726.79
K_s (2MASS "total") 39.5037.1360 Diameter for "total" magnitude 20032MASX.C.......:20032MASX.C.......:13.9413.10
NOTE: At z <= 0.5, physical diameters are derived using a Scale at the Hubble Flow Distance (Virgo + GA + Shapley) of 0.353 kpc/arcsec.
The quantities quoted above have not necessarily been corrected for foreground extinction.

View details for 10 Diameter data point(s) available in NED.

EXTERNAL ARCHIVES AND SERVICES for NGC 4956 Help (Back to INDEX)
Resources for Object NamesSite/Service
Query SIMBAD by primary NED object name -- NGC 4956SIMBAD (CDS, Strasbourg, France)
Revised New General Catalogue -- NGC 4956VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Uppsala General Catalog -- UGC 08177 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Original Zwicky Catalog -- CGCG 189-017 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 +06-29-025 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
2MASS Extended Source Images (JHKs) -- 2MASX J13050097+3510413 NASA/IPAC Infrared Science Archive (IRSA)
2MASS Extended Source Images (JHKs) -- 2MASXi J1305009+351041 NASA/IPAC Infrared Science Archive (IRSA)
version
SDSS Sky Server
Catalogue of Principal Galaxies -- PGC 045236 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Retrieve mean data from LEDA -- PGC 045236 The Lyon/Meudon Extragalactic Database (LEDA)
Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- NGC 4956GALEX Mission Data Archive at MAST
Explore IRSA resources with RADAR (10 arcsec search radius) -- NGC 4956NASA/IPAC Infrared Science Archive (IRSA)
Resources for position 13h05m00.9s, +35d10m41s (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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