NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-06-19 T18:25:38 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. 1

INDEX for NGC 6238
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
   
26 Photometric data point(s) and SED   
Spectra   
Redshift-Independent Distances
18 Reference(s)   
5 Position data point(s)
1 Redshift data point(s)   
4 Diameter data point(s)   
UGC data    

ESSENTIAL NOTE for NGC 6238 (Back to INDEX)
HOLM 756B is a superposed star.                                                 

CROSS-IDENTIFICATIONS for NGC 6238 (Back to INDEX)
Object Names Type Object Names Type
NGC 6238G 2MASS J16471662+6208496 IrS
UGC 10563 G IRAS 16467+6213 IrS
CGCG 299-031 G HOLM 756A G
CGCG 1646.6+6214 G PGC 058980 G
MCG +10-24-057 G UZC J164716.7+620850 G
KAZ 092 G NVSS J164716+620848 RadioS
2MASX J16471664+6208491 IrS [TCW2007] 180 G
     

COORDINATES for NGC 6238 (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)  251.679692   62.234176  16h46m43.12s  +62d14m03.0s  1.25E+00  1.25E+00    0
Equatorial (J2000.0)  251.819292   62.147028  16h47m16.63s  +62d08m49.3s  1.25E+00  1.25E+00    0
Ecliptic   (B1950.0)  200.126777   81.027716                              1.25E+00  1.25E+00    0
Ecliptic   (J2000.0)  200.862818   81.025030                              1.25E+00  1.25E+00    0
Galactic               92.337680   38.138555                              1.25E+00  1.25E+00    0
SuperGalactic          44.830238   38.394130                              1.25E+00  1.25E+00    0
Additional detailed measurements with references are also available by clicking below:
5 Position data point(s)

REDSHIFT-INDEPENDENT DISTANCES for NGC 6238 (Back to INDEX)
 N/A 

CLASSIFICATIONS (TYPES, ATTRIBUTES) for NGC 6238 (Back to INDEX)
TypeAs PublishedNED HomogenizedFlagReference Code
Galaxy MorphologyPECULRpec...1973UGC...C...0000N
1 Detailed Classification(s)


FOREGROUND GALACTIC EXTINCTION for NGC 6238 (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]0.0970.0810.0610.0480.0340.0950.0740.0510.0380.0280.0160.0100.0070.003
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]0.1250.0990.0760.0610.0440.1180.0870.0630.0480.0340.0210.0130.0080.004


Galactic Extinction based on H I Column Densities and Galaxy Counts
(Burstein & Heiles; 1982AJ.....87.1165B) assuming Rv = 3.1:
AB = 0.030 mag
See Notes on Galactic Extinction for important caveats.

BASIC DATA for NGC 6238 (Back to INDEX)
Helio. Radial Velocity     :      5917 +/-       14 km/s      
Redshift                   :  0.019737 +/- 0.000047        1999PASP..111..438F
Major Diameter (arcmin)    :  0.5 
Minor Diameter (arcmin)    :  0.30
Magnitude and Filter       : 14.4 
Classifications            : PECULR              

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:
1 Redshift data point(s)      26 photometric data point(s)      4 Diameter data point(s)      

QUANTITIES DERIVED FROM REDSHIFT for NGC 6238 (Details)(Back to INDEX)
Calculated and Corrected Velocities
V (Heliocentric)           :    5917 +/-     14 km/s      1999PASP..111..438F
V (Kinematic LSR)          :    5934 +/-     14 km/s      1986MNRAS.221.1023K
V (Galactocentric GSR)     :    6103 +/-     16 km/s      1991RC3.9.C...0000d
V (Local Group)            :    6151 +/-     20 km/s      1996AJ....111..794K
V (3K CMB)                 :    5896 +/-     14 km/s      1996ApJ...473..576F
V (Virgo Infall only)      :    6261 +/-     21 km/s      2000ApJ...529..786M
V (Virgo + GA only)        :    6273 +/-     21 km/s      2000ApJ...529..786M
V (Virgo + GA + Shapley)   :    6297 +/-     21 km/s      2000ApJ...529..786M

Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/-   5 km/sec/Mpc)
D (Galactocentric GSR)     :    83.6 +/-    5.9 Mpc      (m-M) = 34.61 +/- 0.15 mag
D (Local Group)            :    84.3 +/-    5.9 Mpc      (m-M) = 34.63 +/- 0.15 mag
D (3K CMB)                 :    80.8 +/-    5.7 Mpc      (m-M) = 34.54 +/- 0.15 mag
D (Virgo Infall only)      :    85.8 +/-    6.0 Mpc      (m-M) = 34.67 +/- 0.15 mag
D (Virgo + GA only)        :    85.9 +/-    6.0 Mpc      (m-M) = 34.67 +/- 0.15 mag
D (Virgo + GA + Shapley)   :    86.3 +/-    6.0 Mpc      (m-M) = 34.68 +/- 0.15 mag

Scale at Hubble Flow Distances
Scale (Galactocentric GSR) :     405 pc/arcsec =  0.405 kpc/arcsec =  24.32 kpc/arcmin =   1.46 Mpc/degree
Scale (Local Group)        :     409 pc/arcsec =  0.409 kpc/arcsec =  24.51 kpc/arcmin =   1.47 Mpc/degree
Scale (3K CMB)             :     392 pc/arcsec =  0.392 kpc/arcsec =  23.49 kpc/arcmin =   1.41 Mpc/degree
Scale (Virgo Infall only)  :     416 pc/arcsec =  0.416 kpc/arcsec =  24.95 kpc/arcmin =   1.50 Mpc/degree
Scale (Virgo + GA only)    :     417 pc/arcsec =  0.417 kpc/arcsec =  25.00 kpc/arcmin =   1.50 Mpc/degree
Scale(Virgo + GA + Shapley):     418 pc/arcsec =  0.418 kpc/arcsec =  25.09 kpc/arcmin =   1.51 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 = 3.985 arcmin and Selected Redshift, defined by the Velocity Range: from to km/sec where V(Heliocentric) = 5917 km/sec
Cosmology-Corrected Quantities [Ho = 73.00 km/sec/Mpc, Ωmatter = 0.27, Ωvacuum = 0.73] [Redshift 0.019666 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation] Luminosity Distance : 82 Mpc (m-M) = 34.57 mag Angular-Size Distance : 78.9 Mpc (m-M) = 34.49 mag Co-Moving Radial Distance : 80.4 Mpc (m-M) = 34.53 mag Co-Moving Tangential Dist. : 80.4 Mpc (m-M) = 34.53 mag Co-Moving Volume : 0.00218 Gpc^3 Light Travel-Time : 0.260 Gyr Age at Redshift 0.019666 : 13.039 Gyr Age of Universe : 13.299 Gyr Scale (Cosmology Corrected): 382 pc/arcsec = 0.382 kpc/arcsec = 22.95 kpc/arcmin = 1.38 Mpc/degree Surface Brightness Dimming : Flux Density per Unit Area = 0.92506; Magnitude per Unit Area = 0.08458 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 6238 (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)]
Visualm_p 14.4 +/- 0.4 mag 1968CGCG4.C...0000Z-20.17 +/- 0.64 [mag] 1.06E+10 +/- 5.16E+09
Near-InfraredH 12.052 +/- 0.054 mag 20032MASX.C.......:-22.52 +/- 0.50 [mag] 5.91E+09 +/- 1.22E+09
Mid-Infrared12 microns (IRAS) <0.266 Jy 1988IRASP.C2..0000: < 5.35E+36 [W] < 1.39E+10
Far-Infrared60 microns (IRAS) 0.921 +/- 6 % Jy 1988IRASP.C2..0000: 3.71E+36 +/- 7.74E+35 [W] 9.64E+09 +/- 2.01E+09
Radio1.4GHz 9.0 +/- 0.5 milliJy 1998AJ....115.1693C 1.01E+31 +/- 2.11E+30 [W] 2.64E+04 +/- 5.48E+03
NOTE: The above quantities are derived using a Distance Modulus of 34.57 mag corresponding to
a Luminosity Distance of 82.0 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 26 Photometric data point(s) available in NED.

QUICK-LOOK ANGULAR & PHYSICAL DIAMETERS for NGC 6238 (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 42.0023.94... Very high surface brightness 1962MCG1..C...0000V17.5610.01
K_s (2MASS "total") 44.3033.675 Diameter for "total" magnitude 20032MASX.C.......:20032MASX.C.......:18.5314.08
NOTE: At z <= 0.5, physical diameters are derived using a Scale at the Hubble Flow Distance (Virgo + GA + Shapley) of 0.418 kpc/arcsec.
The quantities quoted above have not necessarily been corrected for foreground extinction.

View details for 4 Diameter data point(s) available in NED.

EXTERNAL ARCHIVES AND SERVICES for NGC 6238 Help (Back to INDEX)
Resources for Object NamesSite/Service
Query SIMBAD by primary NED object name -- NGC 6238SIMBAD (CDS, Strasbourg, France)
Revised New General Catalogue -- NGC 6238VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Uppsala General Catalog -- UGC 10563 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Original Zwicky Catalog -- CGCG 299-031 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 +10-24-057 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
2MASS Extended Source Images (JHKs) -- 2MASX J16471664+6208491 NASA/IPAC Infrared Science Archive (IRSA)
IRAS Point Source Catalog -- IRAS 16467+6213 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Catalogue of Principal Galaxies -- PGC 058980 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Retrieve mean data from LEDA -- PGC 058980 The Lyon/Meudon Extragalactic Database (LEDA)
NRAO/VLA Sky Survey (NVSS)
Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- NGC 6238GALEX Mission Data Archive at MAST
Explore IRSA resources with RADAR (10 arcsec search radius) -- NGC 6238NASA/IPAC Infrared Science Archive (IRSA)
Resources for position 16h47m16.6s, +62d08m49s (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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