Date and Time of the Query: 2019-04-26 T07:26:51 PDT
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You have selected the following parameters to search on:

Redshift: 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

NED results within 0.070 arcmin of 12h51m18.37920s, -02d02m06.9000s (Equatorial: J2000.0)

1 objects found in NED.    


 Row          Object Name                 EquJ2000.0       Object  Velocity/Redshift    Mag./  Separ.               Number of                                 Row 
 No.     (* => Essential Note)       RA               DEC  Type     km/s       z   Qual Filter arcmin Refs Notes Phot Posn Vel/z Diam Assoc Images   Spectra  No. 
1   *SDSS J125118.38-020207.5       12h51m18.4s -02d02m08s *      >30000  0.335000 PHOT 20.3b   0.010   11     0   20    5     2    4     0 Retrieve Retrieve 1   

Detailed information for each object

Object No. 1 - SDSS J125118.38-020207.5

INDEX for SDSS J125118.38-020207.5
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):

20 Photometric data point(s) and SED   
Redshift-Independent Distances
11 Reference(s)   
5 Position data point(s)
2 Redshift data point(s)   
4 Diameter data point(s)   

ESSENTIAL NOTE for SDSS J125118.38-020207.5 (Back to INDEX)
TXS codes: model(W);lobes(W)                                                    

CROSS-IDENTIFICATIONS for SDSS J125118.38-020207.5 (Back to INDEX)
Object Names Type Object Names Type
SDSS J125118.38-020207.5* VLSS J1251.3-0202 RadioS
GALEXASC J125118.43-020207.7 UvS CRATES J1251-0202 RadioS
GALEXMSC J125118.36-020209.1 UvS CRATES J125118.38-020207.5 RadioS
2QZ J125118.3-020208 VisS TXS 1248-017 RadioS
PMN J1251-0201 RadioS[HRT2007] J125118-020149 RadioS
NVSS J125118-020207 RadioS    

COORDINATES for SDSS J125118.38-020207.5 (Back to INDEX)

Position Reference:2007ApJS..171...61H

Reference    Frame     Longitude    Latitude        RA           DEC      Uncertainty Ellipse (arcsec)
                       (degrees)   (degrees)                              Semimajor Semiminor  PA(deg)
Equatorial (B1950.0) 192.1839094  -1.7636150 12h48m44.138s -01d45m49.01s  1.50E-01  1.50E-01    0
Equatorial (J2000.0) 192.8265833  -2.0354167 12h51m18.380s -02d02m07.50s  1.50E-01  1.50E-01    0
Ecliptic   (B1950.0) 191.8938270   3.1929185                              1.50E-01  1.50E-01    0
Ecliptic   (J2000.0) 192.5927253   3.1910037                              1.50E-01  1.50E-01    0
Galactic             302.8644398  60.8363155                              1.50E-01  1.50E-01    0
SuperGalactic        118.1591513  -1.4433964                              1.50E-01  1.50E-01    0
Additional detailed measurements with references are also available by clicking below:
5 Position data point(s)


TypeAs PublishedNED HomogenizedFlagReference Code
Activity TypeFlat-Spectrum Radio Source,Flat-Spectrum Radio Source...2007ApJS..171...61H
1 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]0.1050.0880.0670.0530.0370.1030.0800.0560.0410.0310.0170.0110.0070.004
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]0.1310.1040.0800.0640.0470.1240.0910.0660.0500.0360.0220.0140.0090.004

Galactic Extinction based on H I Column Densities and Galaxy Counts
(Burstein & Heiles; 1982AJ.....87.1165B) assuming Rv = 3.1:
AB = 0.010 mag
See Notes on Galactic Extinction for important caveats.

BASIC DATA for SDSS J125118.38-020207.5 (Back to INDEX)
Helio. Radial Velocity     :    100430 km/s  PHOT 
Redshift                   :  0.335000  PHOT      2009ApJS..180...67R

Spectral Type              : Candidate      QSO  
Magnitude and Filter       : 20.3b
Spare 3                    :  0.05
Spare 4                    :  0.04

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:
2 Redshift data point(s)      20 photometric data point(s)      4 Diameter data point(s)      

Calculated and Corrected Velocities
V (Heliocentric)           :  100430  km/s           PHOT 2009ApJS..180...67R
V (Kinematic LSR)          :  100434  km/s           PHOT 1986MNRAS.221.1023K
V (Galactocentric GSR)     :  100344 +/-      3 km/s PHOT 1991RC3.9.C...0000d
V (Local Group)            :  100278 +/-      9 km/s PHOT 1996AJ....111..794K
V (3K CMB)                 :  100766 +/-     23 km/s PHOT 1996ApJ...473..576F
V (Virgo Infall only)      :  100473 +/-     16 km/s PHOT 2000ApJ...529..786M
V (Virgo + GA only)        :  100784 +/-     27 km/s PHOT 2000ApJ...529..786M
V (Virgo + GA + Shapley)   :  100870 +/-     28 km/s PHOT 2000ApJ...529..786M

Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/- 5 km/sec/Mpc)
D (Galactocentric GSR)     :  1374.6 +/-   96.2 Mpc      (m-M) = 40.69 +/- 0.15 mag
D (Local Group)            :  1373.7 +/-   96.2 Mpc      (m-M) = 40.69 +/- 0.15 mag
D (3K CMB)                 :  1380.4 +/-   96.6 Mpc      (m-M) = 40.70 +/- 0.15 mag
D (Virgo Infall only)      :  1376.3 +/-   96.3 Mpc      (m-M) = 40.69 +/- 0.15 mag
D (Virgo + GA only)        :  1380.6 +/-   96.6 Mpc      (m-M) = 40.70 +/- 0.15 mag
D (Virgo + GA + Shapley)   :  1381.8 +/-   96.7 Mpc      (m-M) = 40.70 +/- 0.15 mag

Scale at Hubble Flow Distances
Scale (Galactocentric GSR) :    6664 pc/arcsec =  6.664 kpc/arcsec = 399.85 kpc/arcmin =  23.99 Mpc/degree
Scale (Local Group)        :    6660 pc/arcsec =  6.660 kpc/arcsec = 399.58 kpc/arcmin =  23.98 Mpc/degree
Scale (3K CMB)             :    6692 pc/arcsec =  6.692 kpc/arcsec = 401.53 kpc/arcmin =  24.09 Mpc/degree
Scale (Virgo Infall only)  :    6673 pc/arcsec =  6.673 kpc/arcsec = 400.36 kpc/arcmin =  24.02 Mpc/degree
Scale (Virgo + GA only)    :    6693 pc/arcsec =  6.693 kpc/arcsec = 401.60 kpc/arcmin =  24.10 Mpc/degree
Scale(Virgo + GA + Shapley):    6699 pc/arcsec =  6.699 kpc/arcsec = 401.94 kpc/arcmin =  24.12 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 = 0.249 arcmin and Selected Redshift, defined by the Velocity Range: from to km/sec where V(Heliocentric) = 100430 km/sec
Cosmology-Corrected Quantities [Ho = 73.00 km/sec/Mpc, Ωmatter = 0.27, Ωvacuum = 0.73] [Redshift 0.336120 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation] Luminosity Distance : 1711 Mpc (m-M) = 41.17 mag Angular-Size Distance : 958 Mpc (m-M) = 39.91 mag Co-Moving Radial Distance : 1281 Mpc (m-M) = 40.54 mag Co-Moving Tangential Dist. : 1281 Mpc (m-M) = 40.54 mag Co-Moving Volume : 8.8 Gpc^3 Light Travel-Time : 3.615 Gyr Age at Redshift 0.336120 : 9.684 Gyr Age of Universe : 13.299 Gyr Scale (Cosmology Corrected): 4647 pc/arcsec = 4.647 kpc/arcsec = 278.81 kpc/arcmin = 16.73 Mpc/degree Surface Brightness Dimming : Flux Density per Unit Area = 0.31378; Magnitude per Unit Area = 1.258 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)]
UltravioletNUV (GALEX) AB 20.9102 +/- 0.149044 mag 2012GASC..C...0000S-20.26 +/- 0.52 [mag] 1.85E+10 +/- 4.47E+09
Visualu (2QZ Equatorial) 17.712 +/- 0.161 mag 2004MNRAS.349.1397C-23.45 +/- 0.53 [mag] 1.13E+11 +/- 2.82E+10
Radio74 MHz (VLA) 0.77 +/- 0.12 Jy 2007AJ....134.1245C 1.99E+34 +/- 5.05E+33 [W] 5.18E+07 +/- 1.31E+07
NOTE: The above quantities are derived using a Distance Modulus of 41.17 mag corresponding to
a Luminosity Distance of 1711.1 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 20 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]
r (SDSS Isophotal) 3.242.6960 25.0 mag arcsec^-2^ 2007SDSS6.C...0000:21.7018.02
NOTE: At z <= 0.5, physical diameters are derived using a Scale at the Hubble Flow Distance (Virgo + GA + Shapley) of 6.699 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 SDSS J125118.38-020207.5 Help (Back to INDEX)
Resources for Object NamesSite/Service
Query SIMBAD by primary NED object name -- SDSS J125118.38-020207.5SIMBAD (CDS, Strasbourg, France)
SDSS Sky Server
Parkes-MIT-NRAO 4.85GHz Surveys -- PMN J1251-0201 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
NRAO/VLA Sky Survey (NVSS)
Texas Survey of radio sources at 365MHz -- TXS 1248-017 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- SDSS J125118.38-020207.5GALEX Mission Data Archive at MAST
Explore IRSA resources with RADAR (10 arcsec search radius) -- SDSS J125118.38-020207.5NASA/IPAC Infrared Science Archive (IRSA)
Resources for position 12h51m18.4s, -02d02m08s (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)
    Size:     GIF     FITS File  
Faint Images of the Radio Sky at Twenty-Centimeters
The NRAO Data Archive System

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