NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2018-12-14 T07:27:43 PST
Help | Comment | NED Home

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 3940


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 3940                       11h52m46.4s +20d59m21s G        6420  0.021415      13.8     ...    58     0   51   10     9   12     0 Retrieve Retrieve 1   

Detailed information for each object


Object No. 1 - NGC 3940

INDEX for NGC 3940
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
   
51 Photometric data point(s) and SED   
Spectra   
Redshift-Independent Distances
58 Reference(s)   
10 Position data point(s)
9 Redshift data point(s)   
12 Diameter data point(s)   
UGC data    
RC3 data    

ESSENTIAL NOTE for NGC 3940 (Back to INDEX)
N/A

CROSS-IDENTIFICATIONS for NGC 3940 (Back to INDEX)
Object Names Type Object Names Type
NGC 3940G LDCE 0836 NED055 G
UGC 06852 G HDCE 0678 NED006 G
CGCG 127-089 G USGC U427 NED07 G
CGCG 1150.1+2117 G MAPS-NGP O_376_3752373 G
MCG +04-28-082 G NSA 140380 G
2MASX J11524641+2059217 IrS PGC 037224 G
2MASS J11524644+2059212 IrS UZC J115246.5+205920 G
SDSS J115246.44+205921.3 G [M98j] 144 NED14 G
GALEXASC J115246.33+205923.3 UvS [DZ2015] 663-01 G
     

COORDINATES for NGC 3940 (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)  177.548890   21.267439 11h50m11.733s +21d16m02.78s  5.00E-01  5.00E-01    0
Equatorial (J2000.0)  178.193527   20.989265 11h52m46.446s +20d59m21.35s  5.00E-01  5.00E-01    0
Ecliptic   (B1950.0)  169.005502   18.476579                              5.00E-01  5.00E-01    0
Ecliptic   (J2000.0)  169.706172   18.477263                              5.00E-01  5.00E-01    0
Galactic              234.422800   75.282952                              5.00E-01  5.00E-01    0
SuperGalactic          91.806367   -8.286410                              5.00E-01  5.00E-01    0
Additional detailed measurements with references are also available by clicking below:
10 Position data point(s)

REDSHIFT-INDEPENDENT DISTANCES for NGC 3940 (Back to INDEX)

6 Distances found in NED View 6 Individual Distance Measurement(s) for NGC 3940

Summary Statistics computed by NED from 6 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 3940 Distance Modulus
(mag)
Metric Distance
(Mpc)
Mean 35.05 104.217
Std. Dev. 0.42 21.625
Min. 34.62 83.800
Max. 35.78 143.000
Median 34.92 96.600

CLASSIFICATIONS (TYPES, ATTRIBUTES) for NGC 3940 (Back to INDEX)
TypeAs PublishedNED HomogenizedFlagReference Code
HierarchyRGin a radial-velocity based grouping...1998Afz....41..308M
Galaxy MorphologyEE...1991RC3.9.C...0000d
Distance IndicatorTully-FisherTully-Fisher...2007A&A...465...71T
9 Detailed Classification(s)


FOREGROUND GALACTIC EXTINCTION for NGC 3940 (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]0.2090.1750.1320.1050.0730.2040.1590.1100.0820.0610.0340.0220.0150.007
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]0.2570.2040.1570.1270.0920.2440.1800.1300.0990.0700.0430.0270.0170.007


Galactic Extinction based on H I Column Densities and Galaxy Counts
(Burstein & Heiles; 1982AJ.....87.1165B) assuming Rv = 3.1:
AB = 0.170 mag
See Notes on Galactic Extinction for important caveats.

BASIC DATA for NGC 3940 (Back to INDEX)
Helio. Radial Velocity     :      6420 +/-        9 km/s      
Redshift                   :  0.021415 +/- 0.000031        2000MNRAS.313..469S
Major Diameter (arcmin)    :   1.7
Minor Diameter (arcmin)    :   1.6
Magnitude and Filter       : 13.8 
Classifications            : E              PAS  

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:
9 Redshift data point(s)      51 photometric data point(s)      12 Diameter data point(s)      

QUANTITIES DERIVED FROM REDSHIFT for NGC 3940 (Details)(Back to INDEX)
Calculated and Corrected Velocities
V (Heliocentric)           :    6420 +/-      9 km/s      2000MNRAS.313..469S
V (Kinematic LSR)          :    6423 +/-      9 km/s      1986MNRAS.221.1023K
V (Galactocentric GSR)     :    6377 +/-      9 km/s      1991RC3.9.C...0000d
V (Local Group)            :    6336 +/-     11 km/s      1996AJ....111..794K
V (3K CMB)                 :    6742 +/-     24 km/s      1996ApJ...473..576F
V (Virgo Infall only)      :    6567 +/-     19 km/s      2000ApJ...529..786M
V (Virgo + GA only)        :    6925 +/-     32 km/s      2000ApJ...529..786M
V (Virgo + GA + Shapley)   :    6967 +/-     32 km/s      2000ApJ...529..786M

Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/-   5 km/sec/Mpc)
D (Galactocentric GSR)     :    87.4 +/-    6.1 Mpc      (m-M) = 34.71 +/- 0.15 mag
D (Local Group)            :    86.8 +/-    6.1 Mpc      (m-M) = 34.69 +/- 0.15 mag
D (3K CMB)                 :    92.4 +/-    6.5 Mpc      (m-M) = 34.83 +/- 0.15 mag
D (Virgo Infall only)      :    90.0 +/-    6.3 Mpc      (m-M) = 34.77 +/- 0.15 mag
D (Virgo + GA only)        :    94.9 +/-    6.7 Mpc      (m-M) = 34.89 +/- 0.15 mag
D (Virgo + GA + Shapley)   :    95.4 +/-    6.7 Mpc      (m-M) = 34.90 +/- 0.15 mag

Scale at Hubble Flow Distances
Scale (Galactocentric GSR) :     424 pc/arcsec =  0.424 kpc/arcsec =  25.41 kpc/arcmin =   1.52 Mpc/degree
Scale (Local Group)        :     421 pc/arcsec =  0.421 kpc/arcsec =  25.25 kpc/arcmin =   1.51 Mpc/degree
Scale (3K CMB)             :     448 pc/arcsec =  0.448 kpc/arcsec =  26.87 kpc/arcmin =   1.61 Mpc/degree
Scale (Virgo Infall only)  :     436 pc/arcsec =  0.436 kpc/arcsec =  26.17 kpc/arcmin =   1.57 Mpc/degree
Scale (Virgo + GA only)    :     460 pc/arcsec =  0.460 kpc/arcsec =  27.59 kpc/arcmin =   1.66 Mpc/degree
Scale(Virgo + GA + Shapley):     463 pc/arcsec =  0.463 kpc/arcsec =  27.76 kpc/arcmin =   1.67 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 = 3.602 arcmin and Selected Redshift, defined by the Velocity Range: from to km/sec where V(Heliocentric) = 6420 km/sec
Cosmology-Corrected Quantities [Ho = 73.00 km/sec/Mpc, Ωmatter = 0.27, Ωvacuum = 0.73] [Redshift 0.022490 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation] Luminosity Distance : 94 Mpc (m-M) = 34.87 mag Angular-Size Distance : 89.9 Mpc (m-M) = 34.77 mag Co-Moving Radial Distance : 91.9 Mpc (m-M) = 34.82 mag Co-Moving Tangential Dist. : 91.9 Mpc (m-M) = 34.82 mag Co-Moving Volume : 0.00326 Gpc^3 Light Travel-Time : 0.297 Gyr Age at Redshift 0.022490 : 13.002 Gyr Age of Universe : 13.299 Gyr Scale (Cosmology Corrected): 436 pc/arcsec = 0.436 kpc/arcsec = 26.16 kpc/arcmin = 1.57 Mpc/degree Surface Brightness Dimming : Flux Density per Unit Area = 0.91488; Magnitude per Unit Area = 0.09659 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 3940 (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 19.2850 +/- 0.137092 mag 2012GASC..C...0000S-15.76 +/- 0.45 [mag] 3.06E+08 +/- 6.46E+07
Visualz (SDSS Model) AB 12.236 +/- 0.002 asinh mag 2007SDSS6.C...0000:-22.81 +/- 0.42 [mag] 5.00E+10 +/- 8.47E+09
Near-InfraredH 10.076 +/- 0.031 mag 20032MASX.C.......:-24.97 +/- 0.42 [mag] 5.87E+10 +/- 1.01E+10
Mid-Infrared12 microns (IRAS) <0.030 Jy 1994PrivC.U..J....K < 9.75E+35 [W] < 2.53E+09
Far-Infrared100 microns (IRAS) 0.300 +/- 0.120 Jy 1994PrivC.U..J....K 1.17E+36 +/- 5.08E+35 [W] 3.04E+09 +/- 1.32E+09
Radio2380 MHz 1. +/- 5. milliJy 1978ApJS...36...53D 3.09E+30 +/- 1.55E+31 [W] 8.04E+03 +/- 4.02E+04
NOTE: The above quantities are derived using an estimated Distance Modulus of (35.05 +/- 0.42) mag corresponding to
a Metric Distance of (104.217 +/- 21.625) 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 51 Photometric data point(s) available in NED.

QUICK-LOOK ANGULAR & PHYSICAL DIAMETERS for NGC 3940 (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]
RC3 D_0 (blue) 106.70...... 25.0 B-mag arcsec^-2^ 1991RC3.9.C...0000d53.91...
K_s (2MASS "total") 104.2089.61100 Diameter for "total" magnitude 20032MASX.C.......:20032MASX.C.......:52.6545.28
NOTE: Physical diameters are derived using a scale of 0.5053 kpc/arcsec based on Average NED-D Metric Distance of (104.217 +/- 21.625) Mpc.
The quantities quoted above have not necessarily been corrected for foreground extinction.

View details for 12 Diameter data point(s) available in NED.

EXTERNAL ARCHIVES AND SERVICES for NGC 3940 Help (Back to INDEX)
Resources for Object NamesSite/Service
Query SIMBAD by primary NED object name -- NGC 3940SIMBAD (CDS, Strasbourg, France)
Revised New General Catalogue -- NGC 3940VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Uppsala General Catalog -- UGC 06852 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Original Zwicky Catalog -- CGCG 127-089 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 +04-28-082 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
2MASS Extended Source Images (JHKs) -- 2MASX J11524641+2059217 NASA/IPAC Infrared Science Archive (IRSA)
version
SDSS Sky Server
Catalogue of Principal Galaxies -- PGC 037224 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Retrieve mean data from LEDA -- PGC 037224 The Lyon/Meudon Extragalactic Database (LEDA)
Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- NGC 3940GALEX Mission Data Archive at MAST
Explore IRSA resources with RADAR (10 arcsec search radius) -- NGC 3940NASA/IPAC Infrared Science Archive (IRSA)
Resources for position 11h52m46.4s, +20d59m21s (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)
The NRAO Data Archive System

Back to the list




Back to NED Home