NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2018-11-17 T02:32:35 PST
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Velocity(km/s): Unconstrained
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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

Detailed Information for Object No.

INDEX for NGC 4945
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
   
180 Photometric data point(s) and SED   
Spectra   
Redshift-Independent Distances
706 Reference(s)   
36 Position data point(s)
29 Redshift data point(s)   
16 Diameter data point(s)   
24 Note(s)   
ESO data    
PKS data    
RC3 data    

ESSENTIAL NOTE for NGC 4945 (Back to INDEX)
A-M +30' Dec error.                                                             

CROSS-IDENTIFICATIONS for NGC 4945 (Back to INDEX)
Object Names Type Object Names Type
NGC 4945G NEWPS_5yr_5s 293 RadioS
ESO 219- G 024 G NEWPS_5yr_5s_15 284 RadioS
ESO 130231-4912.2 G QVW7 J130519-493343 RadioS
AM 1302-484 G RX J1305.4-4928 XrayS
2MFGC 10410 G 1RXS J130528.0-492758 XrayS
PKS 1302-49 RadioS2PBC J1305.4-4928 XrayS
2MASX J13052727-4928044 IrS PBC J1305.4-4928 XrayS
2MASXi J1305261-492815 IrS XMMSL1 J130528.3-492814 XrayS
2MASS J13052746-4928047 IrS 2XMM J130527.3-492804 XrayS
IRAS 13025-4911 IrS 2XMMp J130527.3-492804 XrayS
IRAS F13025-4912 IrS XSS J13073-4926 XrayS
CGS 442 G CXO J130527.49-492805.1 XrayS
SGC 130231-4912.2 G SWIFT J1305.4-4928 XrayS
ESO-LV 2190240 G 1FGL J1305.4-4928 G
6dF J1305273-492805 RadioS[dML87] 666 G
LDCE 0993 NED001 G [SPB93] 204 G
HDCE 0790 NED001 G LGG 344:[G93] 001 G
LQAC 196-049 001 G [MHH96] J130526-492855 XrayS
HIPASS J1305-49 RadioS[VCV2001] J130527.6-492803 G
PGC 045279 G [VCV2006] J130527.6-492803 G
11HUGS 320 G [HRT2007] J130527-492809 RadioS
PKS B1302-492 RadioS[KRL2007] 133 XrayS
PKS J1305-4928 RadioS[MEM2008] 174 G
PMN J1305-4928 RadioSNGC 4945:[KA2008] 07 XrayS
PMNM 130231.4-491153 RadioS[WMR2009] 101 G
MRC 1302-491 RadioS[TES2010] 044 XrayS
SUMSS J130527-492806 RadioS[MSC2011] J130526.50-492809.3 G
AT20G J130527-492804 RadioSNGC 4945:[L2011a] X0003 XrayS
AT20G J130527.47-492804.8 RadioS[BTM2013] 0655 XrayS
CRATES J1305-4928 RadioS[AHG2014] B194 G
CRATES J130527.47-492805.0 RadioS    
GLXY G305.2+13.3+455 RadioS    
PAPER J196.45-49.41 RadioS    
WMAP J1305-4928 RadioS    
WMAP J130554-4930 RadioS    

COORDINATES for NGC 4945 (Back to INDEX)

Position Reference:1997ApJ...481L..23G

Reference    Frame     Longitude    Latitude        RA           DEC      Uncertainty Ellipse (arcsec)
                       (degrees)   (degrees)                              Semimajor Semiminor  PA(deg)
Equatorial (B1950.0) 195.6345000 -49.2005278 13h02m32.280s -49d12m01.90s  5.00E-01  2.50E-01   90
Equatorial (J2000.0) 196.3644897 -49.4682129 13h05m27.477s -49d28m05.57s  5.00E-01  2.50E-01   90
Ecliptic   (B1950.0) 216.3314145 -38.6407992                              5.00E-01  2.50E-01   61
Ecliptic   (J2000.0) 217.0260945 -38.6451785                              5.00E-01  2.50E-01   61
Galactic             305.2720760  13.3398849                              5.00E-01  2.50E-01   93
SuperGalactic        165.1774512 -10.2119599                              5.00E-01  2.50E-01   12
Additional detailed measurements with references are also available by clicking below:
36 Position data point(s)

REDSHIFT-INDEPENDENT DISTANCES for NGC 4945 (Back to INDEX)

16 Distances found in NED View 16 Individual Distance Measurement(s) for NGC 4945

Summary Statistics computed by NED from 16 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 4945 Distance Modulus
(mag)
Metric Distance
(Mpc)
Mean 27.97 3.953
Std. Dev. 0.24 0.456
Min. 27.63 3.360
Max. 28.60 5.200
Median 27.92 3.835

CLASSIFICATIONS (TYPES, ATTRIBUTES) for NGC 4945 (Back to INDEX)
TypeAs PublishedNED HomogenizedFlagReference Code
HierarchyGRGroup member, radial-velocity confirmed...1993A&AS..100...47G
KinematicsHI line widthHI line width...1999ApJ...524..612B
Luminosity Class6.0LC III-IV...1991RC3.9.C...0000d
Galaxy MorphologySB(s)cd: edge-onSB(s)cd? edge-on...1991RC3.9.C...0000d
Activity TypeFlat-Spectrum Radio Source,Flat-Spectrum Radio Source...2007ApJS..171...61H
Distance IndicatorTully-FisherTully-Fisher...2011A&A...532A.104N
33 Detailed Classification(s)


FOREGROUND GALACTIC EXTINCTION for NGC 4945 (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]0.7650.6400.4840.3830.2660.7480.5830.4030.3000.2230.1250.0790.0530.027
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]0.9590.7620.5850.4720.3430.9100.6700.4860.3680.2610.1590.1020.0650.027


Galactic Extinction based on H I Column Densities and Galaxy Counts
(Burstein & Heiles; 1982AJ.....87.1165B) assuming Rv = 3.1:
AB = 0.790 mag
See Notes on Galactic Extinction for important caveats.

BASIC DATA for NGC 4945 (Back to INDEX)
Helio. Radial Velocity     :       563 +/-        3 km/s      
Redshift                   :  0.001878 +/- 0.000010        2004AJ....128...16K
Major Diameter (arcmin)    :  20.0
Minor Diameter (arcmin)    :   3.8
Magnitude and Filter       :  9.3 
Classifications            : SB(s)cd: sp    Sy2  

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:
29 Redshift data point(s)      180 photometric data point(s)      16 Diameter data point(s)      

QUANTITIES DERIVED FROM REDSHIFT for NGC 4945 (Details)(Back to INDEX)
Calculated and Corrected Velocities
V (Heliocentric)           :     563 +/-      3 km/s      2004AJ....128...16K
V (Kinematic LSR)          :     558 +/-      3 km/s      1986MNRAS.221.1023K
V (Galactocentric GSR)     :     385 +/-      8 km/s      1991RC3.9.C...0000d
V (Local Group)            :     299 +/-     16 km/s      1996AJ....111..794K
V (3K CMB)                 :     808 +/-     17 km/s      1996ApJ...473..576F
V (Virgo Infall only)      :     354 +/-     17 km/s      2000ApJ...529..786M
V (Virgo + GA only)        :     319 +/-     17 km/s      2000ApJ...529..786M
V (Virgo + GA + Shapley)   :     318 +/-     17 km/s      2000ApJ...529..786M

Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/-   5 km/sec/Mpc)
D (Galactocentric GSR)     :    5.28 +/-   0.38 Mpc      (m-M) = 28.61 +/- 0.15 mag
D (Local Group)            :    4.09 +/-   0.36 Mpc      (m-M) = 28.06 +/- 0.18 mag
D (3K CMB)                 :   11.07 +/-   0.81 Mpc      (m-M) = 30.22 +/- 0.15 mag
D (Virgo Infall only)      :    4.85 +/-   0.35 Mpc      (m-M) = 28.43 +/- 0.15 mag
D (Virgo + GA only)        :    4.38 +/-   0.31 Mpc      (m-M) = 28.21 +/- 0.15 mag
D (Virgo + GA + Shapley)   :    4.35 +/-   0.31 Mpc      (m-M) = 28.19 +/- 0.15 mag

Scale at Hubble Flow Distances
Scale (Galactocentric GSR) :      26 pc/arcsec =  0.026 kpc/arcsec =   1.54 kpc/arcmin =   0.09 Mpc/degree
Scale (Local Group)        :      20 pc/arcsec =  0.020 kpc/arcsec =   1.19 kpc/arcmin =   0.07 Mpc/degree
Scale (3K CMB)             :      54 pc/arcsec =  0.054 kpc/arcsec =   3.22 kpc/arcmin =   0.19 Mpc/degree
Scale (Virgo Infall only)  :      23 pc/arcsec =  0.023 kpc/arcsec =   1.41 kpc/arcmin =   0.08 Mpc/degree
Scale (Virgo + GA only)    :      21 pc/arcsec =  0.021 kpc/arcsec =   1.27 kpc/arcmin =   0.08 Mpc/degree
Scale(Virgo + GA + Shapley):      21 pc/arcsec =  0.021 kpc/arcsec =   1.27 kpc/arcmin =   0.08 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 = 78.960 arcmin and Selected Redshift, defined by the Velocity Range: from to km/sec where V(Heliocentric) = 563 km/sec
Cosmology-Corrected Quantities [Ho = 73.00 km/sec/Mpc, Ωmatter = 0.27, Ωvacuum = 0.73] [Redshift 0.002695 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation] Luminosity Distance : 11.1 Mpc (m-M) = 30.22 mag Angular-Size Distance : 11 Mpc (m-M) = 30.21 mag Co-Moving Radial Distance : 11.1 Mpc (m-M) = 30.22 mag Co-Moving Tangential Dist. : 11.1 Mpc (m-M) = 30.22 mag Co-Moving Volume : 5.67e-06 Gpc^3 Light Travel-Time : 0.036 Gyr Age at Redshift 0.002695 : 13.263 Gyr Age of Universe : 13.299 Gyr Scale (Cosmology Corrected): 53 pc/arcsec = 0.053 kpc/arcsec = 3.21 kpc/arcmin = 0.19 Mpc/degree Surface Brightness Dimming : Flux Density per Unit Area = 0.98929; Magnitude per Unit Area = 0.01169 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 4945 (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)]
Gamma-Ray14-195 keV (Swift) 32.98E-11 +/- 0.77E-11 erg/s/cm^2^ 2010ApJS..186..378T 6.15E+34 +/- 3.83E+33 [W] 1.60E+08 +/- 9.95E+06
X-Ray20-100 keV INTEGRAL 29.873E-11 erg/s/cm^2^ 2009MNRAS.399..944M 5.58E+34 [W] 1.45E+08
VisualB (B_T^0) 7.43 mag 1991RC3.9.C...0000d-20.54 [mag] 1.50E+10
Near-InfraredH_tot (2MASS LGA) 4.839 +/- 0.017 mag 2003AJ....125..525J-23.13 +/- 0.15 [mag] 1.05E+10 +/- 6.30E+08
Mid-Infrared30 microns (IRS) 49.56 Jy 2006ApJ...653.1129B 9.26E+35 [W] 2.41E+09
Far-InfraredFIR (IRAS) 3.70E-11 W m^-2^ 1988ApJS...68...91R 6.92E+36 [W] 1.80E+10
Sub-Millimeter870 microns (LABOCA) 15.8 +/- 1.6 Jy 2008A&A...490...77W 1.02E+34 +/- 1.19E+33 [W] 2.65E+07 +/- 3.09E+06
Millimeter1.3 mm (SEST) 2.8 +/- 0.3 Jy 2004A&A...422..883W 1.21E+33 +/- 1.47E+32 [W] 3.15E+06 +/- 3.83E+05
Radio145 MHz (PAPER) 20.6 Jy 2011ApJ...734L..34J 5.58E+30 [W] 1.45E+04
NOTE: The above quantities are derived using an estimated Distance Modulus of (27.97 +/- 0.24) mag corresponding to
a Metric Distance of (3.953 +/- 0.456) 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 180 Photometric data point(s) available in NED.

QUICK-LOOK ANGULAR & PHYSICAL DIAMETERS for NGC 4945 (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-LV "Quick Blue" IIa-O 2511.89577.7342 27.0 B-mag arcsec^-2^ 1989ESOLV.C...0000L48.1411.07
K_s (LGA/2MASS "total") 1182.40283.7843 Diameter for "total" magnitude 2003AJ....125..525J2003AJ....125..525J22.665.44
NOTE: Physical diameters are derived using a scale of 0.0192 kpc/arcsec based on Average NED-D Metric Distance of (3.953 +/- 0.456) Mpc.
The quantities quoted above have not necessarily been corrected for foreground extinction.

View details for 16 Diameter data point(s) available in NED.

EXTERNAL ARCHIVES AND SERVICES for NGC 4945 Help (Back to INDEX)
Resources for Object NamesSite/Service
Query SIMBAD by primary NED object name -- NGC 4945SIMBAD (CDS, Strasbourg, France)
Revised New General Catalogue -- NGC 4945VizieR Catalog Query (U.S. mirror, CfA/Harvard)
ESO/Uppsala Survey -- ESO 219- G 024 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
2MASS Extended Source Images (JHKs) -- 2MASX J13052727-4928044 NASA/IPAC Infrared Science Archive (IRSA)
2MASS Extended Source Images (JHKs) -- 2MASXi J1305261-492815 NASA/IPAC Infrared Science Archive (IRSA)
IRAS Point Source Catalog -- IRAS 13025-4911 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
IRAS Faint Source Catalog -- IRAS F13025-4912 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
The ESO-LV catalog-- ESO-LV 2190240 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Query 6dF Galaxy Redshift Survey -- 6dF J1305273-492805 6dF Galaxy Redshift Survey
Catalogue of Principal Galaxies -- PGC 045279 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Retrieve mean data from LEDA -- PGC 045279 The Lyon/Meudon Extragalactic Database (LEDA)
Parkes Radio Sources Catalogue -- PKS B1302-492 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Parkes-MIT-NRAO 4.85GHz Surveys -- PMN J1305-4928 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- NGC 4945GALEX Mission Data Archive at MAST
Explore IRSA resources with RADAR (10 arcsec search radius) -- NGC 4945NASA/IPAC Infrared Science Archive (IRSA)
Resources for position 13h05m27.5s, -49d28m06s (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)
The NRAO Data Archive System





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