Date and Time of the Query: 2019-06-19 T14:47:11 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. 26

INDEX for IC 3639
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):

136 Photometric data point(s) and SED   
Redshift-Independent Distances
219 Reference(s)   
21 Position data point(s)
17 Redshift data point(s)   
18 Diameter data point(s)   
16 Note(s)   
ESO data    
RC3 data    

ESSENTIAL NOTE for IC 3639 (Back to INDEX)
1992A&AS...96..389d has V = 3747 +- 100.                                        

Object Names Type Object Names Type
IC 3639G LQAC 190-036 001 G
ESO 381- G 008 G FLASH J124052.89-364519.1 G
ESO 123811-3629.0 G HIPASS J1240-36 RadioS
AM 1238-362 NED02 G PGC 042504 G
FAIRALL 0312 G SSTSL2 J124052.81-364520.8 IrS
MCG -06-28-011 G UVQS J124052.84-364521.0 QSO
TOLOLO 00074 EmLS NVSS J124052-364520 RadioS
TOLOLO 1238-364 G SUMSS J124052-364521 RadioS
2MASX J12405287-3645210 IrS 1RXS J124054.1-364507 XrayS
2MASS J12405284-3645210 IrS 1AXG J124048-3645 XrayS
IRAS 12381-3628 IrS [dML87] 302 G
IRAS F12381-3628 IrS [vvd91] 24SW RadioS
AKARI J1240526-364518 IrS LGG 297:[G93] 002 G
SGC 123811-3629.0 G [VCV2001] J124052.9-364521 G
ESO-LV 3810080 G [VCV2006] J124052.9-364521 G
KTS 45B G [AHG2014] B068 G
6dF J1240529-364521 VisS    

COORDINATES for IC 3639 (Back to INDEX)

Position Reference:1989ApJ...343..659U

Reference    Frame     Longitude    Latitude        RA           DEC      Uncertainty Ellipse (arcsec)
                       (degrees)   (degrees)                              Semimajor Semiminor  PA(deg)
Equatorial (B1950.0)  189.544033  -36.481544 12h38m10.568s -36d28m53.56s  5.00E-01  5.00E-01    0
Equatorial (J2000.0)  190.220216  -36.755864 12h40m52.852s -36d45m21.11s  5.00E-01  5.00E-01    0
Ecliptic   (B1950.0)  204.351465  -29.500491                              5.00E-01  5.00E-01    0
Ecliptic   (J2000.0)  205.046827  -29.503744                              5.00E-01  5.00E-01    0
Galactic              300.578063   26.067675                              5.00E-01  5.00E-01    0
SuperGalactic         151.582315  -12.096497                              5.00E-01  5.00E-01    0
Additional detailed measurements with references are also available by clicking below:
21 Position data point(s)


TypeAs PublishedNED HomogenizedFlagReference Code
HierarchyTin a triple...2000ARep...44..501K
KinematicsHI line widthHI line width...2005MNRAS.361...34D
Luminosity Class4.0LC II-III...1991RC3.9.C...0000d
Galaxy MorphologySB(rs)bc:SB(rs)bc?...1991RC3.9.C...0000d
Activity TypeS1hSy 1 h...2006A&A...455..773V
12 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]0.3000.2510.1900.1500.1040.2930.2290.1580.1180.0870.0490.0310.0210.011
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]0.3760.2980.2290.1850.1340.3570.2620.1900.1440.1020.0620.0400.0250.011

Galactic Extinction based on H I Column Densities and Galaxy Counts
(Burstein & Heiles; 1982AJ.....87.1165B) assuming Rv = 3.1:
AB = 0.230 mag
See Notes on Galactic Extinction for important caveats.

BASIC DATA for IC 3639 (Back to INDEX)
Helio. Radial Velocity     :      3275 +/-        5 km/s      
Redshift                   :  0.010924 +/- 0.000017        1998A&AS..130..333T
Major Diameter (arcmin)    :   1.2
Minor Diameter (arcmin)    :   1.2
Magnitude and Filter       : 13.00
Classifications            : SB(rs)bc:      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:
17 Redshift data point(s)      136 photometric data point(s)      18 Diameter data point(s)      

Calculated and Corrected Velocities
V (Heliocentric)           :    3275 +/-      5 km/s      1998A&AS..130..333T
V (Kinematic LSR)          :    3271 +/-      5 km/s      1986MNRAS.221.1023K
V (Galactocentric GSR)     :    3103 +/-      9 km/s      1991RC3.9.C...0000d
V (Local Group)            :    3014 +/-     16 km/s      1996AJ....111..794K
V (3K CMB)                 :    3575 +/-     22 km/s      1996ApJ...473..576F
V (Virgo Infall only)      :    3218 +/-     22 km/s      2000ApJ...529..786M
V (Virgo + GA only)        :    2593 +/-     49 km/s      2000ApJ...529..786M
V (Virgo + GA + Shapley)   :    2576 +/-     49 km/s      2000ApJ...529..786M

Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/-   5 km/sec/Mpc)
D (Galactocentric GSR)     :    42.5 +/-    3.0 Mpc      (m-M) = 33.14 +/- 0.15 mag
D (Local Group)            :    41.3 +/-    2.9 Mpc      (m-M) = 33.08 +/- 0.15 mag
D (3K CMB)                 :    49.0 +/-    3.4 Mpc      (m-M) = 33.45 +/- 0.15 mag
D (Virgo Infall only)      :    44.1 +/-    3.1 Mpc      (m-M) = 33.22 +/- 0.15 mag
D (Virgo + GA only)        :    35.5 +/-    2.6 Mpc      (m-M) = 32.75 +/- 0.15 mag
D (Virgo + GA + Shapley)   :    35.3 +/-    2.5 Mpc      (m-M) = 32.74 +/- 0.15 mag

Scale at Hubble Flow Distances
Scale (Galactocentric GSR) :     206 pc/arcsec =  0.206 kpc/arcsec =  12.36 kpc/arcmin =   0.74 Mpc/degree
Scale (Local Group)        :     200 pc/arcsec =  0.200 kpc/arcsec =  12.01 kpc/arcmin =   0.72 Mpc/degree
Scale (3K CMB)             :     237 pc/arcsec =  0.237 kpc/arcsec =  14.25 kpc/arcmin =   0.85 Mpc/degree
Scale (Virgo Infall only)  :     214 pc/arcsec =  0.214 kpc/arcsec =  12.82 kpc/arcmin =   0.77 Mpc/degree
Scale (Virgo + GA only)    :     172 pc/arcsec =  0.172 kpc/arcsec =  10.33 kpc/arcmin =   0.62 Mpc/degree
Scale(Virgo + GA + Shapley):     171 pc/arcsec =  0.171 kpc/arcsec =  10.26 kpc/arcmin =   0.62 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 = 9.744 arcmin and Selected Redshift, defined by the Velocity Range: from to km/sec where V(Heliocentric) = 3275 km/sec
Cosmology-Corrected Quantities [Ho = 73.00 km/sec/Mpc, Ωmatter = 0.27, Ωvacuum = 0.73] [Redshift 0.011925 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation] Luminosity Distance : 49.4 Mpc (m-M) = 33.47 mag Angular-Size Distance : 48.3 Mpc (m-M) = 33.42 mag Co-Moving Radial Distance : 48.9 Mpc (m-M) = 33.44 mag Co-Moving Tangential Dist. : 48.9 Mpc (m-M) = 33.44 mag Co-Moving Volume : 0.000488 Gpc^3 Light Travel-Time : 0.158 Gyr Age at Redshift 0.011925 : 13.140 Gyr Age of Universe : 13.299 Gyr Scale (Cosmology Corrected): 234 pc/arcsec = 0.234 kpc/arcsec = 14.04 kpc/arcmin = 0.84 Mpc/degree Surface Brightness Dimming : Flux Density per Unit Area = 0.95369; Magnitude per Unit Area = 0.05148 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-Ray0.7-7 keV (ASCA) 2.5E-13 ergs s^-1^ cm^-2^ 2005ApJS..161..185U 7.32E+33 [W] 1.90E+07
Ultraviolet2700A (IUE) 0.62E-14 +/- 0.05E-14 ergs cm^-2 s^-1 A^-1 1993ApJS...86....5K 4.90E+35 +/- 1.06E+35 [W] 1.27E+09 +/- 2.75E+08
VisualR (Cousins) (R_T) 11.87 +/- 0.09 mag 1989ESOLV.C...0000L-21.60 +/- 0.51 [mag] 1.95E+10 +/- 4.25E+09
Near-InfraredF_H (total) 2.16 +/- 1.57 log milliJy 1995ApJ...453..616S 7.80E+36 +/- 2.55E+36 [W] 2.03E+10 +/- 6.62E+09
Mid-Infrared25 microns (IRAS) 2.87 +/- 0.30 Jy 2004AJ....127.3235S 1.01E+37 +/- 2.27E+36 [W] 2.62E+10 +/- 5.91E+09
Far-Infrared100 microns (IRAS) 14.90 +/- 1.20 Jy 2004AJ....127.3235S 1.31E+37 +/- 2.82E+36 [W] 3.40E+10 +/- 7.33E+09
Radio843 MHz (SUMSS) 110 +/- 3.6 milliJy 2008SUMSS.2.1.....: 2.71E+31 +/- 5.50E+30 [W] 7.05E+04 +/- 1.43E+04
NOTE: The above quantities are derived using a Distance Modulus of 33.47 mag corresponding to
a Luminosity Distance of 49.4 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 136 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]
ESO-LV "Quick Blue" IIa-O 94.4184.0241 27.0 B-mag arcsec^-2^ 1989ESOLV.C...0000L16.1514.37
K_s (2MASS "total") 81.8071.9830 Diameter for "total" magnitude 20032MASX.C.......:20032MASX.C.......:13.9912.31
NOTE: At z <= 0.5, physical diameters are derived using a Scale at the Hubble Flow Distance (Virgo + GA + Shapley) of 0.171 kpc/arcsec.
The quantities quoted above have not necessarily been corrected for foreground extinction.

View details for 18 Diameter data point(s) available in NED.

Resources for Object NamesSite/Service
Query SIMBAD by primary NED object name -- IC 3639SIMBAD (CDS, Strasbourg, France)
ESO/Uppsala Survey -- ESO 381- G 008 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Morphological Catalog of Galaxies -- MCG -06-28-011 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
2MASS Extended Source Images (JHKs) -- 2MASX J12405287-3645210 NASA/IPAC Infrared Science Archive (IRSA)
IRAS Point Source Catalog -- IRAS 12381-3628 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
IRAS Faint Source Catalog -- IRAS F12381-3628 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
The ESO-LV catalog-- ESO-LV 3810080 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Query 6dF Galaxy Redshift Survey -- 6dF J1240529-364521 6dF Galaxy Redshift Survey
Catalogue of Principal Galaxies -- PGC 042504 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Retrieve mean data from LEDA -- PGC 042504 The Lyon/Meudon Extragalactic Database (LEDA)
NRAO/VLA Sky Survey (NVSS)
Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- IC 3639GALEX Mission Data Archive at MAST
Explore IRSA resources with RADAR (10 arcsec search radius) -- IC 3639NASA/IPAC Infrared Science Archive (IRSA)
Resources for position 12h40m52.8s, -36d45m21s (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)
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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