NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-08-18 T23:40:50 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. 420

INDEX for NGC 4839 GROUP
Essential Data (jump to sub-section of this query report):

   Essential Note    
   Cross-IDs    
   Coordinates    
   Basic Data   
   Quantities Derived from Redshift    
   Redshift-Independent Distances
   Classifications
   Foreground Galactic Extinction    
   External Services
Detailed Data (NED queries):

Images

Spectra   
Redshift-Independent Distances
8 Reference(s)   

ESSENTIAL NOTE for NGC 4839 GROUP (Back to INDEX)
N/A

CROSS-IDENTIFICATIONS for NGC 4839 GROUP (Back to INDEX)
Object Names Type Object Names Type
NGC 4839 GROUPGGroupNGC 4889 GROUP GGroup
NGC 4874 GROUP GGroup[M98j] 186 GGroup

COORDINATES for NGC 4839 GROUP (Back to INDEX)

Position Reference:1998Afz....41..308M

Reference    Frame     Longitude    Latitude        RA           DEC      Uncertainty Ellipse (arcsec)
                       (degrees)   (degrees)                              Semimajor Semiminor  PA(deg)
Equatorial (B1950.0)    194.0500     28.1500     12h56m12s     +28d09.0m  1.50E+02  1.50E+02    0
Equatorial (J2000.0)    194.6540     27.8803     12h58m37s     +27d52.8m  1.50E+02  1.50E+02    0
Ecliptic   (B1950.0)    180.5805     31.1980                              1.50E+02  1.50E+02    0
Ecliptic   (J2000.0)    181.2830     31.1974                              1.50E+02  1.50E+02    0
Galactic                 58.6344     88.2397                              1.50E+02  1.50E+02    0
SuperGalactic            89.6528      8.0463                              1.50E+02  1.50E+02    0

REDSHIFT-INDEPENDENT DISTANCES for NGC 4839 GROUP (Back to INDEX)
 N/A 

CLASSIFICATIONS (TYPES, ATTRIBUTES) for NGC 4839 GROUP (Back to INDEX)
 N/A 

FOREGROUND GALACTIC EXTINCTION for NGC 4839 GROUP (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]0.0540.0450.0340.0270.0190.0530.0410.0280.0210.0160.0090.0060.0040.002
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]0.0650.0520.0400.0320.0230.0620.0460.0330.0250.0180.0110.0070.0040.002


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 4839 GROUP (Back to INDEX)
Helio. Radial Velocity     :      7553 km/s       
Redshift                   :  0.025194           1998Afz....41..308M
Morphology                 :                     
Magnitude and Filter       :      
Size (arcmin)              :      
Population Count           :    18

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.

QUANTITIES DERIVED FROM REDSHIFT(Details)
Calculated and Corrected Velocities
V (Heliocentric)           :    7553  km/s                1998Afz....41..308M
V (Kinematic LSR)          :    7561  km/s                1986MNRAS.221.1023K
V (Galactocentric GSR)     :    7566 +/-      1 km/s      1991RC3.9.C...0000d
V (Local Group)            :    7539 +/-      1 km/s      1996AJ....111..794K
V (3K CMB)                 :    7823 +/-     19 km/s      1996ApJ...473..576F
V (Virgo Infall only)      :    7759 +/-     15 km/s      2000ApJ...529..786M
V (Virgo + GA only)        :    8072 +/-     27 km/s      2000ApJ...529..786M
V (Virgo + GA + Shapley)   :    8125 +/-     27 km/s      2000ApJ...529..786M

Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/- 5 km/sec/Mpc)
D (Galactocentric GSR)     :   103.6 +/-    7.3 Mpc      (m-M) = 35.08 +/- 0.15 mag
D (Local Group)            :   103.3 +/-    7.2 Mpc      (m-M) = 35.07 +/- 0.15 mag
D (3K CMB)                 :   107.2 +/-    7.5 Mpc      (m-M) = 35.15 +/- 0.15 mag
D (Virgo Infall only)      :   106.3 +/-    7.4 Mpc      (m-M) = 35.13 +/- 0.15 mag
D (Virgo + GA only)        :   110.6 +/-    7.7 Mpc      (m-M) = 35.22 +/- 0.15 mag
D (Virgo + GA + Shapley)   :   111.3 +/-    7.8 Mpc      (m-M) = 35.23 +/- 0.15 mag

Scale at Hubble Flow Distances
Scale (Galactocentric GSR) :     502 pc/arcsec =  0.502 kpc/arcsec =  30.15 kpc/arcmin =   1.81 Mpc/degree
Scale (Local Group)        :     501 pc/arcsec =  0.501 kpc/arcsec =  30.04 kpc/arcmin =   1.80 Mpc/degree
Scale (3K CMB)             :     520 pc/arcsec =  0.520 kpc/arcsec =  31.17 kpc/arcmin =   1.87 Mpc/degree
Scale (Virgo Infall only)  :     515 pc/arcsec =  0.515 kpc/arcsec =  30.92 kpc/arcmin =   1.86 Mpc/degree
Scale (Virgo + GA only)    :     536 pc/arcsec =  0.536 kpc/arcsec =  32.17 kpc/arcmin =   1.93 Mpc/degree
Scale(Virgo + GA + Shapley):     540 pc/arcsec =  0.540 kpc/arcsec =  32.38 kpc/arcmin =   1.94 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 = 3.089 arcmin and Selected Redshift, defined by the Velocity Range: from to km/sec where V(Heliocentric) = 7553 km/sec
Cosmology-Corrected Quantities [Ho = 73.00 km/sec/Mpc, Ωmatter = 0.27, Ωvacuum = 0.73] [Redshift 0.026094 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation] Luminosity Distance : 109 Mpc (m-M) = 35.19 mag Angular-Size Distance : 104 Mpc (m-M) = 35.08 mag Co-Moving Radial Distance : 107 Mpc (m-M) = 35.14 mag Co-Moving Tangential Dist. : 107 Mpc (m-M) = 35.14 mag Co-Moving Volume : 0.00507 Gpc^3 Light Travel-Time : 0.343 Gyr Age at Redshift 0.026094 : 12.956 Gyr Age of Universe : 13.299 Gyr Scale (Cosmology Corrected): 504 pc/arcsec = 0.504 kpc/arcsec = 30.22 kpc/arcmin = 1.81 Mpc/degree Surface Brightness Dimming : Flux Density per Unit Area = 0.90209; Magnitude per Unit Area = 0.1119 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

EXTERNAL ARCHIVES AND SERVICES for NGC 4839 GROUP Help (Back to INDEX)
Resources for Object NamesSite/Service
Query SIMBAD by primary NED object name -- NGC 4839 GROUPSIMBAD (CDS, Strasbourg, France)
Revised New General Catalogue -- NGC 4839 GROUPVizieR Catalog Query (U.S. mirror, CfA/Harvard)
Revised New General Catalogue -- NGC 4874 GROUP VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Revised New General Catalogue -- NGC 4889 GROUP VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- NGC 4839 GROUPGALEX Mission Data Archive at MAST
Explore IRSA resources with RADAR (10 arcsec search radius) -- NGC 4839 GROUPNASA/IPAC Infrared Science Archive (IRSA)
Resources for position 12h58m36.9s, +27d52m49s (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)
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NASA/IPAC Infrared Science Archive (IRSA)
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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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