NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-05-25 T11:01:05 PDT
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You have selected the following parameters to search on:

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. 545

INDEX for 3C 304
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
   Classifications
   Foreground Galactic Extinction    
   External Services
Detailed Data (NED queries):

Images
   
21 Photometric data point(s) and SED   
Spectra   
Redshift-Independent Distances
38 Reference(s)   
5 Position data point(s)
1 Note(s)   
PKS data    

ESSENTIAL NOTE for 3C 304 (Back to INDEX)
N/A

CROSS-IDENTIFICATIONS for 3C 304 (Back to INDEX)
Object Names Type Object Names Type
3C 304RadioS7C 1446+2037 RadioS
4C +20.34 RadioSOQ +277 RadioS
PKS 1446+20 RadioSNRAO 0454 RadioS
PKS B1446+206 RadioSTXS 1446+206 RadioS
PKS B1446+206 ID G VRO 20.14.03 RadioS
PKS J1448+2025 RadioSCul 1446+206 RadioS
MG2 J144851+2024 RadioSCoNFIG3 J144850.05+202534.80 RadioS
87GB 144632.9+203807 RadioS[VE75] CL 1446+21 NED01 RadioS
87GB[BWE91] 1446+2038 RadioS[GBW2010] CoNFIG3 034 RadioS
[WB92] 1446+2038 RadioS    
NVSS J144850+202534 RadioS    
VLSS J1448.8+2025 RadioS    
     

COORDINATES for 3C 304 (Back to INDEX)

Position Reference:1996AJ....111.1945D

Reference    Frame     Longitude    Latitude        RA           DEC      Uncertainty Ellipse (arcsec)
                       (degrees)   (degrees)                              Semimajor Semiminor  PA(deg)
Equatorial (B1950.0) 221.6373958  20.6332972 14h46m32.975s +20d37m59.87s  5.00E-01  3.00E-01   90
Equatorial (J2000.0) 222.2084588  20.4261883 14h48m50.030s +20d25m34.28s  5.00E-01  3.00E-01   90
Ecliptic   (B1950.0) 211.5977002  34.7985079                              5.00E-01  3.00E-01   69
Ecliptic   (J2000.0) 212.2999119  34.7946543                              5.00E-01  3.00E-01   69
Galactic              25.2612034  62.3896339                              5.00E-01  3.00E-01  160
SuperGalactic        101.8203483  31.6221060                              5.00E-01  3.00E-01    6
Additional detailed measurements with references are also available by clicking below:
5 Position data point(s)

REDSHIFT-INDEPENDENT DISTANCES for 3C 304 (Back to INDEX)
 N/A 

CLASSIFICATIONS (TYPES, ATTRIBUTES) for 3C 304 (Back to INDEX)
 N/A 

FOREGROUND GALACTIC EXTINCTION for 3C 304 (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]0.1370.1140.0860.0680.0470.1340.1040.0720.0540.0400.0220.0140.0100.005
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]0.1710.1350.1040.0840.0610.1620.1190.0860.0650.0460.0280.0180.0120.005


Galactic Extinction based on H I Column Densities and Galaxy Counts
(Burstein & Heiles; 1982AJ.....87.1165B) assuming Rv = 3.1:
AB = 0.120 mag
See Notes on Galactic Extinction for important caveats.

BASIC DATA for 3C 304 (Back to INDEX)
Helio. Radial Velocity     :     76147 km/s       
Redshift                   :  0.254000            1991ApJS...75..297H
Major Diameter (arcmin)    :      
Minor Diameter (arcmin)    :      
Magnitude and Filter       : 18.5 
Classifications            : Radio galaxy        

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:
21 photometric data point(s)      

QUANTITIES DERIVED FROM REDSHIFT(Details)
Calculated and Corrected Velocities
V (Heliocentric)           :   76147  km/s                1991ApJS...75..297H
V (Kinematic LSR)          :   76162  km/s                1986MNRAS.221.1023K
V (Galactocentric GSR)     :   76203 +/-      2 km/s      1991RC3.9.C...0000d
V (Local Group)            :   76183 +/-      2 km/s      1996AJ....111..794K
V (3K CMB)                 :   76333 +/-     13 km/s      1996ApJ...473..576F
V (Virgo Infall only)      :   76351 +/-     12 km/s      2000ApJ...529..786M
V (Virgo + GA only)        :   76527 +/-     17 km/s      2000ApJ...529..786M
V (Virgo + GA + Shapley)   :   76593 +/-     18 km/s      2000ApJ...529..786M

Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/- 5 km/sec/Mpc)
D (Galactocentric GSR)     :  1043.9 +/-   73.1 Mpc      (m-M) = 40.09 +/- 0.15 mag
D (Local Group)            :  1043.6 +/-   73.1 Mpc      (m-M) = 40.09 +/- 0.15 mag
D (3K CMB)                 :  1045.7 +/-   73.2 Mpc      (m-M) = 40.10 +/- 0.15 mag
D (Virgo Infall only)      :  1045.9 +/-   73.2 Mpc      (m-M) = 40.10 +/- 0.15 mag
D (Virgo + GA only)        :  1048.3 +/-   73.4 Mpc      (m-M) = 40.10 +/- 0.15 mag
D (Virgo + GA + Shapley)   :  1049.2 +/-   73.4 Mpc      (m-M) = 40.10 +/- 0.15 mag

Scale at Hubble Flow Distances
Scale (Galactocentric GSR) :    5061 pc/arcsec =  5.061 kpc/arcsec = 303.65 kpc/arcmin =  18.22 Mpc/degree
Scale (Local Group)        :    5060 pc/arcsec =  5.060 kpc/arcsec = 303.57 kpc/arcmin =  18.21 Mpc/degree
Scale (3K CMB)             :    5070 pc/arcsec =  5.070 kpc/arcsec = 304.17 kpc/arcmin =  18.25 Mpc/degree
Scale (Virgo Infall only)  :    5071 pc/arcsec =  5.071 kpc/arcsec = 304.24 kpc/arcmin =  18.25 Mpc/degree
Scale (Virgo + GA only)    :    5082 pc/arcsec =  5.082 kpc/arcsec = 304.94 kpc/arcmin =  18.30 Mpc/degree
Scale(Virgo + GA + Shapley):    5087 pc/arcsec =  5.087 kpc/arcsec = 305.20 kpc/arcmin =  18.31 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 = 0.328 arcmin and Selected Redshift, defined by the Velocity Range: from to km/sec where V(Heliocentric) = 76147 km/sec
Cosmology-Corrected Quantities [Ho = 73.00 km/sec/Mpc, Ωmatter = 0.27, Ωvacuum = 0.73] [Redshift 0.254621 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation] Luminosity Distance : 1241 Mpc (m-M) = 40.47 mag Angular-Size Distance : 788 Mpc (m-M) = 39.48 mag Co-Moving Radial Distance : 989 Mpc (m-M) = 39.98 mag Co-Moving Tangential Dist. : 989 Mpc (m-M) = 39.98 mag Co-Moving Volume : 4.05 Gpc^3 Light Travel-Time : 2.880 Gyr Age at Redshift 0.254621 : 10.419 Gyr Age of Universe : 13.299 Gyr Scale (Cosmology Corrected): 3822 pc/arcsec = 3.822 kpc/arcsec = 229.30 kpc/arcmin = 13.76 Mpc/degree Surface Brightness Dimming : Flux Density per Unit Area = 0.40360; Magnitude per Unit Area = 0.9851 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 3C 304 (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)]
Radio80 MHz 19. Jy 1995AuJPh..48..143S 2.80E+35 [W] 7.28E+08
NOTE: The above quantities are derived using a Distance Modulus of 40.47 mag corresponding to
a Luminosity Distance of 1240.8 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 21 Photometric data point(s) available in NED.

EXTERNAL ARCHIVES AND SERVICES for 3C 304 Help (Back to INDEX)
Resources for Object NamesSite/Service
Query SIMBAD by primary NED object name -- 3C 304SIMBAD (CDS, Strasbourg, France)
Fourth Cambridge Survey -- 4C +20.34 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Parkes Radio Sources Catalogue -- PKS B1446+206 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
NRAO/VLA Sky Survey (NVSS)
Texas Survey of radio sources at 365MHz -- TXS 1446+206 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- 3C 304GALEX Mission Data Archive at MAST
Explore IRSA resources with RADAR (10 arcsec search radius) -- 3C 304NASA/IPAC Infrared Science Archive (IRSA)
Resources for position 14h48m50.0s, +20d25m34s (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)
The NRAO Data Archive System





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