NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-06-25 T17:32:34 PDT
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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. 271

INDEX for NGC 3938
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
   
160 Photometric data point(s) and SED   
Spectra   
Redshift-Independent Distances
476 Reference(s)   
30 Position data point(s)
14 Redshift data point(s)   
8 Diameter data point(s)   
13 Note(s)   
UGC data    
RC3 data    

ESSENTIAL NOTE for NGC 3938 (Back to INDEX)
N/A

CROSS-IDENTIFICATIONS for NGC 3938 (Back to INDEX)
Object Names Type Object Names Type
NGC 3938G LDCE 0867 NED044 G
UGC 06856 G HDCE 0706 NED012 G
CGCG 214-034 G USGC U480 NED47 G
CGCG 215-002 G NSA 140384 G
CGCG 1150.2+4423 G PGC 037229 G
MCG +07-25-001 G UZC J115249.4+440714 G
B3 1150+444 RadioS6C B115014.6+442358 RadioS
2MASX J11524945+4407146 IrS GB6 J1152+4407 RadioS
2MASS J11524942+4407146 IrS HIJASS J1152+44 G
SDSS J115249.43+440714.6 G LGG 269:[G93] 002 G
IRAS 11502+4423 IrS [M98j] 170 NED16 G
IRAS F11502+4423 IrS [SLK2004] 0638 IrS
AKARI J1152497+440719 IrS [RHM2006] SFGs 014 G
ISOSS 038 IrS UMa Cluster:[PRL2014] U060 G
ISOSS J11527+4408 IrS    
ISOSS J11528+4407 IrS    

COORDINATES for NGC 3938 (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)  177.555380   44.398864  11h50m13.29s  +44d23m55.9s  1.25E+00  1.25E+00    0
Equatorial (J2000.0)  178.206042   44.120722  11h52m49.45s  +44d07m14.6s  1.25E+00  1.25E+00    0
Ecliptic   (B1950.0)  156.773832   39.032297                              1.25E+00  1.25E+00    0
Ecliptic   (J2000.0)  157.477325   39.034364                              1.25E+00  1.25E+00    0
Galactic              153.877123   69.319220                              1.25E+00  1.25E+00    0
SuperGalactic          70.207967    0.186355                              1.25E+00  1.25E+00    0
Additional detailed measurements with references are also available by clicking below:
30 Position data point(s)

REDSHIFT-INDEPENDENT DISTANCES for NGC 3938 (Back to INDEX)

8 Distances found in NED View 8 Individual Distance Measurement(s) for NGC 3938

Summary Statistics computed by NED from 8 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 3938 Distance Modulus
(mag)
Metric Distance
(Mpc)
Mean 30.10 12.694
Std. Dev. 1.47 7.807
Min. 28.64 5.350
Max. 31.75 22.400
Median 29.97 11.350

CLASSIFICATIONS (TYPES, ATTRIBUTES) for NGC 3938 (Back to INDEX)
TypeAs PublishedNED HomogenizedFlagReference Code
HierarchyF?Possible field galaxy...1976ApJS...32..409T
KinematicsHI line widthHI line width...1988MNRAS.231..833S
Luminosity Class5.0LC III...1991RC3.9.C...0000d
Galaxy MorphologySA(s)cSA(s)c...1991RC3.9.C...0000d
Distance IndicatorTully-FisherTully-Fisher...1988NBGC.C....0000T
44 Detailed Classification(s)


FOREGROUND GALACTIC EXTINCTION for NGC 3938 (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]0.0920.0770.0580.0460.0320.0900.0700.0490.0360.0270.0150.0100.0060.003
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]0.1160.0920.0710.0570.0410.1100.0810.0590.0450.0320.0190.0120.0080.003


Galactic Extinction based on H I Column Densities and Galaxy Counts
(Burstein & Heiles; 1982AJ.....87.1165B) assuming Rv = 3.1:
AB = 0.000 mag
See Notes on Galactic Extinction for important caveats.

BASIC DATA for NGC 3938 (Back to INDEX)
Helio. Radial Velocity     :       809 +/-        4 km/s      
Redshift                   :  0.002699 +/- 0.000013        1991RC3.9.C...0000d
Major Diameter (arcmin)    :   5.4
Minor Diameter (arcmin)    :   4.9
Magnitude and Filter       : 10.8B
Classifications            : SA(s)c         HII  

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:
14 Redshift data point(s)      160 photometric data point(s)      8 Diameter data point(s)      

QUANTITIES DERIVED FROM REDSHIFT for NGC 3938 (Details)(Back to INDEX)
Calculated and Corrected Velocities
V (Heliocentric)           :     809 +/-      4 km/s      1991RC3.9.C...0000d
V (Kinematic LSR)          :     816 +/-      4 km/s      1986MNRAS.221.1023K
V (Galactocentric GSR)     :     849 +/-      4 km/s      1991RC3.9.C...0000d
V (Local Group)            :     843 +/-      4 km/s      1996AJ....111..794K
V (3K CMB)                 :    1038 +/-     16 km/s      1996ApJ...473..576F
V (Virgo Infall only)      :    1038 +/-     14 km/s      2000ApJ...529..786M
V (Virgo + GA only)        :    1127 +/-     16 km/s      2000ApJ...529..786M
V (Virgo + GA + Shapley)   :    1134 +/-     16 km/s      2000ApJ...529..786M

Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/-   5 km/sec/Mpc)
D (Galactocentric GSR)     :    11.6 +/-    0.8 Mpc      (m-M) = 30.33 +/- 0.15 mag
D (Local Group)            :    11.5 +/-    0.8 Mpc      (m-M) = 30.31 +/- 0.15 mag
D (3K CMB)                 :    14.2 +/-    1.0 Mpc      (m-M) = 30.76 +/- 0.15 mag
D (Virgo Infall only)      :    14.2 +/-    1.0 Mpc      (m-M) = 30.76 +/- 0.15 mag
D (Virgo + GA only)        :    15.4 +/-    1.1 Mpc      (m-M) = 30.94 +/- 0.15 mag
D (Virgo + GA + Shapley)   :    15.5 +/-    1.1 Mpc      (m-M) = 30.96 +/- 0.15 mag

Scale at Hubble Flow Distances
Scale (Galactocentric GSR) :      56 pc/arcsec =  0.056 kpc/arcsec =   3.38 kpc/arcmin =   0.20 Mpc/degree
Scale (Local Group)        :      56 pc/arcsec =  0.056 kpc/arcsec =   3.36 kpc/arcmin =   0.20 Mpc/degree
Scale (3K CMB)             :      69 pc/arcsec =  0.069 kpc/arcsec =   4.14 kpc/arcmin =   0.25 Mpc/degree
Scale (Virgo Infall only)  :      69 pc/arcsec =  0.069 kpc/arcsec =   4.14 kpc/arcmin =   0.25 Mpc/degree
Scale (Virgo + GA only)    :      75 pc/arcsec =  0.075 kpc/arcsec =   4.49 kpc/arcmin =   0.27 Mpc/degree
Scale(Virgo + GA + Shapley):      75 pc/arcsec =  0.075 kpc/arcsec =   4.52 kpc/arcmin =   0.27 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 = 22.137 arcmin and Selected Redshift, defined by the Velocity Range: from to km/sec where V(Heliocentric) = 809 km/sec
Cosmology-Corrected Quantities [Ho = 73.00 km/sec/Mpc, Ωmatter = 0.27, Ωvacuum = 0.73] [Redshift 0.003462 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation] Luminosity Distance : 14.3 Mpc (m-M) = 30.77 mag Angular-Size Distance : 14.2 Mpc (m-M) = 30.76 mag Co-Moving Radial Distance : 14.2 Mpc (m-M) = 30.76 mag Co-Moving Tangential Dist. : 14.2 Mpc (m-M) = 30.76 mag Co-Moving Volume : 1.2e-05 Gpc^3 Light Travel-Time : 0.046 Gyr Age at Redshift 0.003462 : 13.253 Gyr Age of Universe : 13.299 Gyr Scale (Cosmology Corrected): 69 pc/arcsec = 0.069 kpc/arcsec = 4.12 kpc/arcmin = 0.25 Mpc/degree Surface Brightness Dimming : Flux Density per Unit Area = 0.98627; Magnitude per Unit Area = 0.01501 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 3938 (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)]
X-Ray0.3-8 keV (Chandra) <0.42E-14 erg/s/cm^2^ 2011ApJ...731...60G < 8.10E+30 [W] < 2.11E+04
UltravioletNUV (GALEX) 36.41 +/- 5.04 milliJy 2007ApJ...655..863D 9.26E+35 +/- 4.23E+35 [W] 2.41E+09 +/- 1.10E+09
VisualB 0.44 Jy 2007ApJ...655..863D 5.65E+36 [W] 1.47E+10
Near-InfraredK' (UHawaii) 7.74 mag 2009MNRAS.393..628M-22.36 [mag] 4.02E+09
Mid-Infrared8.0 microns (IRAC) 1376.8 +/- 15.8 milliJy 2007AJ....133..791S 1.01E+36 +/- 4.41E+35 [W] 2.64E+09 +/- 1.15E+09
Far-Infrared160 microns (MIPS) 51.98 +/- 6.26 Jy 2007ApJ...655..863D 1.92E+36 +/- 8.69E+35 [W] 5.01E+09 +/- 2.26E+09
Sub-Millimeter350 microns (SPIRE) 1.03E+1 +/- 0.07E+1 Jy 2012ApJ...745...95D 1.70E+35 +/- 7.49E+34 [W] 4.43E+08 +/- 1.95E+08
Radio151 MHz (6C) 0.26 +/- 0.050 Jy 1988MNRAS.234..919H 7.62E+29 +/- 3.62E+29 [W] 1.98E+03 +/- 9.42E+02
NOTE: The above quantities are derived using an estimated Distance Modulus of (30.10 +/- 1.47) mag corresponding to
a Metric Distance of (12.694 +/- 7.807) 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 160 Photometric data point(s) available in NED.

QUICK-LOOK ANGULAR & PHYSICAL DIAMETERS for NGC 3938 (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]
POSS1 103a-O 324.00304.56... About 25.0 B-mag arcsec^-2^ 1973UGC...C...0000N19.9418.74
K_s (LGA/2MASS "total") 380.60361.5728 Diameter for "total" magnitude 2003AJ....125..525J2003AJ....125..525J23.4222.25
NOTE: Physical diameters are derived using a scale of 0.0615 kpc/arcsec based on Average NED-D Metric Distance of (12.694 +/- 7.807) Mpc.
The quantities quoted above have not necessarily been corrected for foreground extinction.

View details for 8 Diameter data point(s) available in NED.

EXTERNAL ARCHIVES AND SERVICES for NGC 3938 Help (Back to INDEX)
Resources for Object NamesSite/Service
Query SIMBAD by primary NED object name -- NGC 3938SIMBAD (CDS, Strasbourg, France)
Revised New General Catalogue -- NGC 3938VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Uppsala General Catalog -- UGC 06856 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Original Zwicky Catalog -- CGCG 214-034 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Query UZC Spectral Archive (60 arcsec search radius)Updated Zwicky Catalog Data (Harvard/SAO)
Original Zwicky Catalog -- CGCG 215-002 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Morphological Catalog of Galaxies -- MCG +07-25-001 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
The Third Bologna Survey -- B3 1150+444 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
2MASS Extended Source Images (JHKs) -- 2MASX J11524945+4407146 NASA/IPAC Infrared Science Archive (IRSA)
version
SDSS Sky Server
IRAS Point Source Catalog -- IRAS 11502+4423 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
IRAS Faint Source Catalog -- IRAS F11502+4423 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Catalogue of Principal Galaxies -- PGC 037229 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Retrieve mean data from LEDA -- PGC 037229 The Lyon/Meudon Extragalactic Database (LEDA)
GB6 catalog of radio sources -- GB6 J1152+4407 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- NGC 3938GALEX Mission Data Archive at MAST
Explore IRSA resources with RADAR (10 arcsec search radius) -- NGC 3938NASA/IPAC Infrared Science Archive (IRSA)
Resources for position 11h52m49.4s, +44d07m15s (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)
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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