Date and Time of the Query: 2019-08-24 T13:44:58 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. 15

INDEX for NGC 4639
Essential Data (jump to sub-section of this query report):

   Essential Note    
   Basic Data   
   Quantities Derived from Redshift    
   Redshift-Independent Distances
   Quick-Look Photometry and Luminosities
   Quick-Look Angular and Physical Sizes
   Foreground Galactic Extinction    
   External Services
Detailed Data (NED queries):

86 Photometric data point(s) and SED   
Redshift-Independent Distances
626 Reference(s)   
34 Position data point(s)
22 Redshift data point(s)   
8 Diameter data point(s)   
18 Note(s)   
1 Association(s)   
UGC data    
RC3 data    


Object Names Type Object Names Type
NGC 4639G SSTSL2 J124252.37+131527.4 IrS
UGC 07884 G UZC J124252.4+131526 G
VCC 1943 G FAUST 3400 UvES
CGCG 070-230 G FAUST V170 UvES
CGCG 071-008 G ALFALFA 1-393 G
CGCG 1240.4+1332 G EVCC 1080 G
MCG +02-32-189 G CXO J124252.3+131526 XrayS
2MASX J12425235+1315271 IrS 1RXS J124252.5+131530 XrayS
2MASXi J1242523+131527 IrS 1RXP J124252.2+131527 XrayS
2MASS J12425237+1315268 IrS 1WGA J1242.8+1315 XrayS
SDSS J124252.36+131526.5 G 2XMM J124252.3+131526 XrayS
SDSS J124252.37+131526.6 G 2XMMp J124252.3+131526 XrayS
IRAS 12403+1331 IrS 1AXG J124252+1315 XrayS
IRAS F12403+1331 IrS CXO J124252.38+131526.6 XrayS
AKARI J1242519+131522 IrS LGG 289:[G93] 050 G
ISOSS 047 IrS [M98j] 174 NED199 G
ISOSS J12428+1315 IrS [VCV2001] J124252.5+131525 G
LDCE 0904 NED233 G RX J1242.8+1315:[ZEH2003] 02 G
HDCE 0720 NED191 G [SLK2004] 0731 IrS
USGC U490 NED46 G NGC 4639:[LB2005] X01 XrayS
LQAC 190+013 010 G [VCV2006] J124252.5+131525 G
HIPASS J1243+13a RadioS[TCW2007] 131 G
[BEC2010] HRS 242 G [RG2008] J190.71822+13.25740 G
MAPS-NGP O_496_0034440 G NGC 4639:[L2011a] X0001 XrayS
NSA 162294 G RSCG 66:[WBJ2013] B G
PGC 042741 G    

COORDINATES for NGC 4639 (Back to INDEX)

Position Reference:2010ApJS..189...37E

Reference    Frame     Longitude    Latitude        RA           DEC      Uncertainty Ellipse (arcsec)
                       (degrees)   (degrees)                              Semimajor Semiminor  PA(deg)
Equatorial (B1950.0) 190.0895859  13.5311964 12h40m21.500s +13d31m52.31s  4.20E-01  4.20E-01    0
Equatorial (J2000.0) 190.7182792  13.2573978 12h42m52.387s +13d15m26.63s  4.20E-01  4.20E-01    0
Ecliptic   (B1950.0) 183.7756075  16.4050628                              4.20E-01  4.20E-01    0
Ecliptic   (J2000.0) 184.4760330  16.4040717                              4.20E-01  4.20E-01    0
Galactic             294.2952017  75.9852925                              4.20E-01  4.20E-01    0
SuperGalactic        102.8743160   0.7143082                              4.20E-01  4.20E-01    0
Additional detailed measurements with references are also available by clicking below:
34 Position data point(s)


77 Distances found in NED View 77 Individual Distance Measurement(s) for NGC 4639

Summary Statistics computed by NED from 77 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 4639 Distance Modulus
Metric Distance
Mean 31.76 22.596
Std. Dev. 0.25 2.614
Min. 31.02 16.000
Max. 32.53 32.100
Median 31.72 22.100

TypeAs PublishedNED HomogenizedFlagReference Code
HierarchyRGin a radial-velocity based grouping...1998Afz....41..308M
KinematicsHI line widthHI line width...1976A&A....46..381H
Luminosity Class4.0LC II-III...1991RC3.9.C...0000d
Galaxy MorphologySAB(rs)bcSAB(rs)bc...1991RC3.9.C...0000d
Activity TypeS1.0Sy 1.0...2006A&A...455..773V
Distance IndicatorTully-FisherTully-Fisher...2000A&A...355..835E
86 Detailed Classification(s)

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]0.1120.0940.0710.0560.0390.1100.0860.0590.0440.0330.0180.0120.0080.004
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]0.1410.1120.0860.0690.0500.1340.0990.0710.0540.0380.0230.0150.0100.004

Galactic Extinction based on H I Column Densities and Galaxy Counts
(Burstein & Heiles; 1982AJ.....87.1165B) assuming Rv = 3.1:
AB = 0.050 mag
See Notes on Galactic Extinction for important caveats.

BASIC DATA for NGC 4639 (Back to INDEX)
Helio. Radial Velocity     :      1018 +/-        5 km/s      
Redshift                   :  0.003395 +/- 0.000018        2006HIPAS.C...0000:
Major Diameter (arcmin)    :   2.8
Minor Diameter (arcmin)    :   1.9
Magnitude and Filter       : 12.24
Classifications            : SAB(rs)bc      Sy1.8

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:
22 Redshift data point(s)      86 photometric data point(s)      8 Diameter data point(s)      

Calculated and Corrected Velocities
V (Heliocentric)           :    1018 +/-      5 km/s      2006HIPAS.C...0000:
V (Kinematic LSR)          :    1023 +/-      5 km/s      1986MNRAS.221.1023K
V (Galactocentric GSR)     :     974 +/-      6 km/s      1991RC3.9.C...0000d
V (Local Group)            :     925 +/-      8 km/s      1996AJ....111..794K
V (3K CMB)                 :    1338 +/-     23 km/s      1996ApJ...473..576F
V (Virgo Infall only)      :     957 +/-      8 km/s      2000ApJ...529..786M
V (Virgo + GA only)        :    1017 +/-      9 km/s      2000ApJ...529..786M
V (Virgo + GA + Shapley)   :    1018 +/-      9 km/s      2000ApJ...529..786M
Note:Object in Virgo Cluster (Radius = 10 deg; Velocity Range = 600-2300 km/sec)
 Virgo Cluster mean velocity (957 km/sec) assigned.  See Local Velocity Field Model details

Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/-   5 km/sec/Mpc)
D (Galactocentric GSR)     :    13.3 +/-    0.9 Mpc      (m-M) = 30.63 +/- 0.15 mag
D (Local Group)            :    12.7 +/-    0.9 Mpc      (m-M) = 30.51 +/- 0.15 mag
D (3K CMB)                 :    18.3 +/-    1.3 Mpc      (m-M) = 31.32 +/- 0.15 mag
D (Virgo Infall only)      :    13.1 +/-    0.9 Mpc      (m-M) = 30.59 +/- 0.15 mag
D (Virgo + GA only)        :    13.9 +/-    1.0 Mpc      (m-M) = 30.72 +/- 0.15 mag
D (Virgo + GA + Shapley)   :    13.9 +/-    1.0 Mpc      (m-M) = 30.72 +/- 0.15 mag

Scale at Hubble Flow Distances
Scale (Galactocentric GSR) :      65 pc/arcsec =  0.065 kpc/arcsec =   3.88 kpc/arcmin =   0.23 Mpc/degree
Scale (Local Group)        :      61 pc/arcsec =  0.061 kpc/arcsec =   3.69 kpc/arcmin =   0.22 Mpc/degree
Scale (3K CMB)             :      89 pc/arcsec =  0.089 kpc/arcsec =   5.33 kpc/arcmin =   0.32 Mpc/degree
Scale (Virgo Infall only)  :      64 pc/arcsec =  0.064 kpc/arcsec =   3.81 kpc/arcmin =   0.23 Mpc/degree
Scale (Virgo + GA only)    :      68 pc/arcsec =  0.068 kpc/arcsec =   4.05 kpc/arcmin =   0.24 Mpc/degree
Scale(Virgo + GA + Shapley):      68 pc/arcsec =  0.068 kpc/arcsec =   4.05 kpc/arcmin =   0.24 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 = 24.662 arcmin and Selected Redshift, defined by the Velocity Range: from to km/sec where V(Heliocentric) = 1018 km/sec
Cosmology-Corrected Quantities [Ho = 73.00 km/sec/Mpc, Ωmatter = 0.27, Ωvacuum = 0.73] [Redshift 0.004463 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation] Luminosity Distance : 18.4 Mpc (m-M) = 31.32 mag Angular-Size Distance : 18.2 Mpc (m-M) = 31.30 mag Co-Moving Radial Distance : 18.3 Mpc (m-M) = 31.31 mag Co-Moving Tangential Dist. : 18.3 Mpc (m-M) = 31.31 mag Co-Moving Volume : 2.57e-05 Gpc^3 Light Travel-Time : 0.060 Gyr Age at Redshift 0.004463 : 13.239 Gyr Age of Universe : 13.299 Gyr Scale (Cosmology Corrected): 88 pc/arcsec = 0.088 kpc/arcsec = 5.30 kpc/arcmin = 0.32 Mpc/degree Surface Brightness Dimming : Flux Density per Unit Area = 0.98234; Magnitude per Unit Area = 0.01934 mag
To change Cosmological Input Parameters for Derived Quantities: Enter Your Preferred Values and click on "Submit Changed Hubble Parameters for this object" button
Correct Redshift To the Reference Frame defined by: as Input for Calculation of the Distances and Cosmology-Corrected Quantities


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).

Band Apparent Mag or Flux Refcode Absolute Mag or νLν [W] νLν [L(Bolometric)]
X-Ray2-10 keV (XMM) 42.7E-12 erg/cm^2^/s 2008A&A...490..995P 2.60E+35 [W] 6.77E+08
Ultravioletm(2000) 12.4 +/- 0.4 mag 1987A&A...180...12D-19.36 +/- 0.41 [mag] 1.18E+09 +/- 5.28E+08
VisualI 10.44 +/- 0.02 mag 2007ApJS..172..599S-21.32 +/- 0.07 [mag] 1.02E+10 +/- 3.29E+08
Near-InfraredH 9.034 +/- 0.020 mag 20032MASX.C.......:-22.73 +/- 0.07 [mag] 7.20E+09 +/- 2.32E+08
Mid-Infrared12 microns (WISE) 181.53 +/- 16.37 milliJy 2014A&A...565A.128C 2.76E+35 +/- 2.61E+34 [W] 7.19E+08 +/- 6.78E+07
Far-Infrared170 microns (ISO) 8.22 +/- 30 % Jy 2004A&A...422...39S 8.84E+35 +/- 2.67E+35 [W] 2.30E+09 +/- 6.93E+08
Radio2380 MHz 11. +/- 4. milliJy 1978ApJS...36...53D 1.60E+30 +/- 5.83E+29 [W] 4.16E+03 +/- 1.52E+03
NOTE: The above quantities are derived using an estimated Distance Modulus of (31.76 +/- 0.25) mag corresponding to
a Metric Distance of (22.596 +/- 2.614) 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 86 Photometric data point(s) available in NED.


The largest diameters in the Visual and Near-Infrared spectral regions, when available:

Passband Apparent Major Axis
(2a) [arcsec]
Apparent Minor Axis
(2b) [arcsec]
Reference Level RefcodePhysical Major Axis
(2a) [kpc]
Physical Minor Axis
(2b) [kpc]
POSS1 103a-O 192.00132.48122 About 25.0 B-mag arcsec^-2^ 1973UGC...C...0000N21.0314.51
K_s (LGA/2MASS "total") 174.00118.32160 Diameter for "total" magnitude 2003AJ....125..525J2003AJ....125..525J19.0612.96
NOTE: Physical diameters are derived using a scale of 0.1095 kpc/arcsec based on Average NED-D Metric Distance of (22.596 +/- 2.614) Mpc.
The quantities quoted above have not necessarily been corrected for foreground extinction.

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

Resources for Object NamesSite/Service
Query SIMBAD by primary NED object name -- NGC 4639SIMBAD (CDS, Strasbourg, France)
Revised New General Catalogue -- NGC 4639VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Uppsala General Catalog -- UGC 07884 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Original Zwicky Catalog -- CGCG 070-230 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 071-008 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Morphological Catalog of Galaxies -- MCG +02-32-189 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
2MASS Extended Source Images (JHKs) -- 2MASX J12425235+1315271 NASA/IPAC Infrared Science Archive (IRSA)
2MASS Extended Source Images (JHKs) -- 2MASXi J1242523+131527 NASA/IPAC Infrared Science Archive (IRSA)
SDSS Sky Server
IRAS Point Source Catalog -- IRAS 12403+1331 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
IRAS Faint Source Catalog -- IRAS F12403+1331 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Catalogue of Principal Galaxies -- PGC 042741 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Retrieve mean data from LEDA -- PGC 042741 The Lyon/Meudon Extragalactic Database (LEDA)
Far-UV Point Sources -- FAUST 3400 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Query Arecibo Legacy Fast ALFA survey Service -- ALFALFA 1-393 Arecibo Legacy Fast ALFA survey Service
Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- NGC 4639GALEX Mission Data Archive at MAST
Explore IRSA resources with RADAR (10 arcsec search radius) -- NGC 4639NASA/IPAC Infrared Science Archive (IRSA)
Resources for position 12h42m52.4s, +13d15m27s (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)
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

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