Date and Time of the Query: 2019-04-20 T09:46:32 PDT
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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 12h59m31.17600s, +51d40m56.4240s (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 J125931.17+514056.3       12h59m31.2s +51d40m56s VisS   >30000  0.405000 PHOT 19.87   0.003   34     0   25    6     2    4     0 Retrieve Retrieve 1   

Detailed information for each object

Object No. 1 - SDSS J125931.17+514056.3

INDEX for SDSS J125931.17+514056.3
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):

25 Photometric data point(s) and SED   
Redshift-Independent Distances
34 Reference(s)   
6 Position data point(s)
2 Redshift data point(s)   
4 Diameter data point(s)   

ESSENTIAL NOTE for SDSS J125931.17+514056.3 (Back to INDEX)

CROSS-IDENTIFICATIONS for SDSS J125931.17+514056.3 (Back to INDEX)
Object Names Type Object Names Type
SDSS J125931.17+514056.3* IERS B1257+519 RadioS
SDSS J125931.18+514056.5 VisS IVS B1257+519 RadioS
LQAC 194+051 006 VisS JVAS J1259+5140 RadioS
87GB 125719.3+515718 RadioSVCS1 J1259+5140 RadioS
87GB[BWE91] 1257+5157 RadioSVCS6 J1259+5140 RadioS
[WB92] 1257+5157 RadioSVIPS 0617 RadioS
NVSS J125931+514056 RadioSVIPS J12595+5140 RadioS
VLSS J1259.5+5140 RadioSWMAP J125927+5141 RadioS
6C B125719.1+515648 RadioSQVW5 J125950+5142 RadioS
CRATES J1259+5140 RadioSQVW7 J125946+514308 RadioS
CRATES J125931.17+514056.3 RadioS[HMI96] 125718.83+515705.9 VisS
TXS 1257+519 RadioS[HRT2007] J125930+514106 RadioS
GB6 J1259+5141 RadioS[JBB2007] J125931.17+514056.2 RadioS
ICRF J125931.1+514056 RadioS    

COORDINATES for SDSS J125931.17+514056.3 (Back to INDEX)

Position Reference:2011AJ....142...89P

Reference    Frame     Longitude    Latitude        RA           DEC      Uncertainty Ellipse (arcsec)
                       (degrees)   (degrees)                              Semimajor Semiminor  PA(deg)
Equatorial (B1950.0) 194.3284809  51.9516204 12h57m18.8354s +51d57m05.833s  1.47E-03  8.50E-04   90
Equatorial (J2000.0) 194.8798912  51.6822944 12h59m31.1739s +51d40m56.260s  1.47E-03  8.50E-04   90
Ecliptic   (B1950.0) 163.8086154  51.5509468                              1.47E-03  8.50E-04   52
Ecliptic   (J2000.0) 164.5151392  51.5522569                              1.47E-03  8.50E-04   52
Galactic             119.9220317  65.3987855                              1.47E-03  8.50E-04   86
SuperGalactic         65.9511327  12.9531073                              1.47E-03  8.50E-04    9
Additional detailed measurements with references are also available by clicking below:
6 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]0.0400.0340.0260.0200.0140.0390.0310.0210.0160.0120.0070.0040.0030.001
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]0.0540.0430.0330.0270.0190.0520.0380.0280.0210.0150.0090.0060.0040.002

Galactic Extinction based on H I Column Densities and Galaxy Counts
(Burstein & Heiles; 1982AJ.....87.1165B) assuming Rv = 3.1:
AB = 0.000 mag
See Notes on Galactic Extinction for important caveats.

BASIC DATA for SDSS J125931.17+514056.3 (Back to INDEX)
Helio. Radial Velocity     :    121416 km/s  PHOT 
Redshift                   :  0.405000  PHOT      2009ApJS..180...67R
Description                : Candidate      QSO  
Magnitude and Filter       : 19.87
Spare 3                    :  0.06
Spare 4                    :  0.05

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)      25 photometric data point(s)      4 Diameter data point(s)      

Calculated and Corrected Velocities
V (Heliocentric)           :  121416  km/s           PHOT 2009ApJS..180...67R
V (Kinematic LSR)          :  121426  km/s           PHOT 1986MNRAS.221.1023K
V (Galactocentric GSR)     :  121504 +/-      4 km/s PHOT 1991RC3.9.C...0000d
V (Local Group)            :  121513 +/-      6 km/s PHOT 1996AJ....111..794K
V (3K CMB)                 :  121584 +/-     12 km/s PHOT 1996ApJ...473..576F
V (Virgo Infall only)      :  121668 +/-     12 km/s PHOT 2000ApJ...529..786M
V (Virgo + GA only)        :  121640 +/-     12 km/s PHOT 2000ApJ...529..786M
V (Virgo + GA + Shapley)   :  121660 +/-     13 km/s PHOT 2000ApJ...529..786M

Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/- 5 km/sec/Mpc)
D (Galactocentric GSR)     :  1664.4 +/-  116.5 Mpc      (m-M) = 41.11 +/- 0.15 mag
D (Local Group)            :  1664.6 +/-  116.5 Mpc      (m-M) = 41.11 +/- 0.15 mag
D (3K CMB)                 :  1665.5 +/-  116.6 Mpc      (m-M) = 41.11 +/- 0.15 mag
D (Virgo Infall only)      :  1666.7 +/-  116.7 Mpc      (m-M) = 41.11 +/- 0.15 mag
D (Virgo + GA only)        :  1666.3 +/-  116.6 Mpc      (m-M) = 41.11 +/- 0.15 mag
D (Virgo + GA + Shapley)   :  1666.6 +/-  116.7 Mpc      (m-M) = 41.11 +/- 0.15 mag

Scale at Hubble Flow Distances
Scale (Galactocentric GSR) :    8069 pc/arcsec =  8.069 kpc/arcsec = 484.17 kpc/arcmin =  29.05 Mpc/degree
Scale (Local Group)        :    8070 pc/arcsec =  8.070 kpc/arcsec = 484.20 kpc/arcmin =  29.05 Mpc/degree
Scale (3K CMB)             :    8075 pc/arcsec =  8.075 kpc/arcsec = 484.48 kpc/arcmin =  29.07 Mpc/degree
Scale (Virgo Infall only)  :    8080 pc/arcsec =  8.080 kpc/arcsec = 484.82 kpc/arcmin =  29.09 Mpc/degree
Scale (Virgo + GA only)    :    8078 pc/arcsec =  8.078 kpc/arcsec = 484.71 kpc/arcmin =  29.08 Mpc/degree
Scale(Virgo + GA + Shapley):    8080 pc/arcsec =  8.080 kpc/arcsec = 484.79 kpc/arcmin =  29.09 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 = 0.206 arcmin and Selected Redshift, defined by the Velocity Range: from to km/sec where V(Heliocentric) = 121416 km/sec
Cosmology-Corrected Quantities [Ho = 73.00 km/sec/Mpc, Ωmatter = 0.27, Ωvacuum = 0.73] [Redshift 0.405561 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation] Luminosity Distance : 2136 Mpc (m-M) = 41.65 mag Angular-Size Distance : 1081 Mpc (m-M) = 40.17 mag Co-Moving Radial Distance : 1520 Mpc (m-M) = 40.91 mag Co-Moving Tangential Dist. : 1520 Mpc (m-M) = 40.91 mag Co-Moving Volume : 14.7 Gpc^3 Light Travel-Time : 4.183 Gyr Age at Redshift 0.405561 : 9.116 Gyr Age of Universe : 13.299 Gyr Scale (Cosmology Corrected): 5241 pc/arcsec = 5.241 kpc/arcsec = 314.47 kpc/arcmin = 18.87 Mpc/degree Surface Brightness Dimming : Flux Density per Unit Area = 0.25621; Magnitude per Unit Area = 1.478 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)]
Visualz (SDSS PSF) AB 19.144 +/- 0.052 asinh mag 2007SDSS6.C...0000:-22.50 +/- 0.50 [mag] 3.61E+10 +/- 7.43E+09
MillimeterW (WMAP) 1.0 +/- 0.3 Jy 2009ApJS..180..283W 5.13E+37 +/- 1.85E+37 [W] 1.33E+11 +/- 4.81E+10
Radio74 MHz (VLA) 1.27 +/- 0.14 Jy 2007AJ....134.1245C 5.12E+34 +/- 1.17E+34 [W] 1.33E+08 +/- 3.04E+07
NOTE: The above quantities are derived using a Distance Modulus of 41.65 mag corresponding to
a Luminosity Distance of 2135.8 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 25 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) 4.503.15162 25.0 mag arcsec^-2^ 2007SDSS6.C...0000:36.3625.45
NOTE: At z <= 0.5, physical diameters are derived using a Scale at the Hubble Flow Distance (Virgo + GA + Shapley) of 8.080 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 J125931.17+514056.3 Help (Back to INDEX)
Resources for Object NamesSite/Service
Query SIMBAD by primary NED object name -- SDSS J125931.17+514056.3SIMBAD (CDS, Strasbourg, France)
SDSS Sky Server
NRAO/VLA Sky Survey (NVSS)
Texas Survey of radio sources at 365MHz -- TXS 1257+519 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
GB6 catalog of radio sources -- GB6 J1259+5141 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- SDSS J125931.17+514056.3GALEX Mission Data Archive at MAST
Explore IRSA resources with RADAR (10 arcsec search radius) -- SDSS J125931.17+514056.3NASA/IPAC Infrared Science Archive (IRSA)
Resources for position 12h59m31.2s, +51d40m56s (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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