Date and Time of the Query: 2019-05-23 T00:45:56 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 0.050 arcmin of 12h06m44.16000s, +51d53m16.8000s (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 J120644.18+515316.1       12h06m44.2s +51d53m16s QSO    >30000  2.226547      19.0g   0.012   28     0   32    7    12    8     0 Retrieve Retrieve 1   

Detailed information for each object

Object No. 1 - SDSS J120644.18+515316.1

INDEX for SDSS J120644.18+515316.1
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):

32 Photometric data point(s) and SED   
Redshift-Independent Distances
28 Reference(s)   
7 Position data point(s)
12 Redshift data point(s)   
8 Diameter data point(s)   

ESSENTIAL NOTE for SDSS J120644.18+515316.1 (Back to INDEX)

CROSS-IDENTIFICATIONS for SDSS J120644.18+515316.1 (Back to INDEX)
Object Names Type Object Names Type
SDSS J120644.18+515316.1QSO NVSS J120644+515315 RadioS
SDSS J120644.19+515316.4 VisS VLSS J1206.7+5153 RadioS
GALEXASC J120644.25+515316.3 UvS GB6 J1206+5153 RadioS
LQAC 181+051 007 QSO [WHJ2012] J181.684113+51.88781QSO

COORDINATES for SDSS J120644.18+515316.1 (Back to INDEX)

Position Reference:2007SDSS6.C...0000:

Reference    Frame     Longitude    Latitude        RA           DEC      Uncertainty Ellipse (arcsec)
                       (degrees)   (degrees)                              Semimajor Semiminor  PA(deg)
Equatorial (B1950.0)  181.051991   52.166053 12h04m12.478s +52d09m57.79s  5.00E-01  5.00E-01    0
Equatorial (J2000.0)  181.684104   51.887810 12h06m44.185s +51d53m16.12s  5.00E-01  5.00E-01    0
Ecliptic   (B1950.0)  153.638918   46.808050                              5.00E-01  5.00E-01    0
Ecliptic   (J2000.0)  154.343840   46.810458                              5.00E-01  5.00E-01    0
Galactic              138.681925   63.851959                              5.00E-01  5.00E-01    0
SuperGalactic          63.747785    5.093820                              5.00E-01  5.00E-01    0
Additional detailed measurements with references are also available by clicking below:
7 Position data point(s)


TypeAs PublishedNED HomogenizedFlagReference Code
Activity TypeQuasarQSO...2009MNRAS.399.2231S
2 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]0.0790.0660.0500.0400.0280.0780.0600.0420.0310.0230.0130.0080.0060.003
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]0.0940.0750.0570.0460.0340.0890.0660.0480.0360.0260.0160.0100.0060.003

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 J120644.18+515316.1 (Back to INDEX)
Helio. Radial Velocity     :    667502 +/-      170 km/s      
Redshift                   :  2.226547 +/- 0.000568       ; 2010MNRAS.405.2302H
Description                : Candidate      QSO  
Magnitude and Filter       : 19.0g
Spare 3                    :  0.08
Spare 4                    :  0.08

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:
12 Redshift data point(s)      32 photometric data point(s)      8 Diameter data point(s)      

QUANTITIES DERIVED FROM REDSHIFT for SDSS J120644.18+515316.1 (Details)(Back to INDEX)
Calculated and Corrected Velocities
V (Heliocentric)           :  667502 +/-    170 km/s      2010MNRAS.405.2302H
V (Kinematic LSR)          :  667510 +/-    170 km/s      1986MNRAS.221.1023K
V (Galactocentric GSR)     :  667573 +/-    170 km/s      1991RC3.9.C...0000d
V (Local Group)            :  667579 +/-    170 km/s      1996AJ....111..794K
V (3K CMB)                 :  667687 +/-    171 km/s      1996ApJ...473..576F
V (Virgo Infall only)      :  667733 +/-    171 km/s      2000ApJ...529..786M
V (Virgo + GA only)        :  667683 +/-    171 km/s      2000ApJ...529..786M
V (Virgo + GA + Shapley)   :  667692 +/-    171 km/s      2000ApJ...529..786M

Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/-   5 km/sec/Mpc)
D (Galactocentric GSR)     :  9144.8 +/-  640.1 Mpc      (m-M) = 44.81 +/- 0.15 mag
D (Local Group)            :  9144.9 +/-  640.1 Mpc      (m-M) = 44.81 +/- 0.15 mag
D (3K CMB)                 :  9146.4 +/-  640.3 Mpc      (m-M) = 44.81 +/- 0.15 mag
D (Virgo Infall only)      :  9147.0 +/-  640.3 Mpc      (m-M) = 44.81 +/- 0.15 mag
D (Virgo + GA only)        :  9146.3 +/-  640.2 Mpc      (m-M) = 44.81 +/- 0.15 mag
D (Virgo + GA + Shapley)   :  9146.5 +/-  640.3 Mpc      (m-M) = 44.81 +/- 0.15 mag

Scale at Hubble Flow Distances
Scale (Galactocentric GSR) :   44335 pc/arcsec = 44.335 kpc/arcsec = 2660.12 kpc/arcmin = 159.61 Mpc/degree
Scale (Local Group)        :   44336 pc/arcsec = 44.336 kpc/arcsec = 2660.15 kpc/arcmin = 159.61 Mpc/degree
Scale (3K CMB)             :   44343 pc/arcsec = 44.343 kpc/arcsec = 2660.58 kpc/arcmin = 159.63 Mpc/degree
Scale (Virgo Infall only)  :   44346 pc/arcsec = 44.346 kpc/arcsec = 2660.76 kpc/arcmin = 159.65 Mpc/degree
Scale (Virgo + GA only)    :   44343 pc/arcsec = 44.343 kpc/arcsec = 2660.56 kpc/arcmin = 159.63 Mpc/degree
Scale(Virgo + GA + Shapley):   44343 pc/arcsec = 44.343 kpc/arcsec = 2660.60 kpc/arcmin = 159.64 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 = 0.038 arcmin and Selected Redshift, defined by the Velocity Range: from to km/sec where V(Heliocentric) = 667502 km/sec
Cosmology-Corrected Quantities [Ho = 73.00 km/sec/Mpc, Ωmatter = 0.27, Ωvacuum = 0.73] [Redshift 2.227165 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation] Luminosity Distance : 17474 Mpc (m-M) = 46.21 mag Angular-Size Distance : 1678 Mpc (m-M) = 41.12 mag Co-Moving Radial Distance : 5415 Mpc (m-M) = 43.67 mag Co-Moving Tangential Dist. : 5415 Mpc (m-M) = 43.67 mag Co-Moving Volume : 665 Gpc^3 Light Travel-Time : 10.371 Gyr Age at Redshift 2.227165 : 2.928 Gyr Age of Universe : 13.299 Gyr Scale (Cosmology Corrected): 8135 pc/arcsec = 8.135 kpc/arcsec = 488.08 kpc/arcmin = 29.28 Mpc/degree Surface Brightness Dimming : Flux Density per Unit Area = 0.00922; Magnitude per Unit Area = 5.088 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)]
Ultraviolet1700 A (SDSS) -15.541 log(erg/cm^2^/s/A) 2011MNRAS.410..860A 1.79E+39 [W] 4.65E+12
Visuali (SDSS Petrosian)AB 18.918 +/- 0.023 asinh mag 2004SDSS2.C...0000:-27.29 +/- 0.50 [mag] 8.46E+12 +/- 1.70E+12
Radio74 MHz (VLA) 0.61 +/- 0.09 Jy 2007AJ....134.1245C 1.64E+36 +/- 4.09E+35 [W] 4.28E+09 +/- 1.06E+09
NOTE: The above quantities are derived using a Distance Modulus of 46.21 mag corresponding to
a Luminosity Distance of 17474.5 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 32 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) 5.084.4730 25.0 mag arcsec^-2^ 2007SDSS6.C...0000:41.3236.36
NOTE: At z > 0.5, physical diameters are derived using a Scale (Cosmology Corrected) of 8.135 kpc/arcsec.
The quantities quoted above have not necessarily been corrected for foreground extinction.

View details for 8 Diameter data point(s) available in NED.

EXTERNAL ARCHIVES AND SERVICES for SDSS J120644.18+515316.1 Help (Back to INDEX)
Resources for Object NamesSite/Service
Query SIMBAD by primary NED object name -- SDSS J120644.18+515316.1SIMBAD (CDS, Strasbourg, France)
SDSS Sky Server
NRAO/VLA Sky Survey (NVSS)
GB6 catalog of radio sources -- GB6 J1206+5153 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- SDSS J120644.18+515316.1GALEX Mission Data Archive at MAST
Explore IRSA resources with RADAR (10 arcsec search radius) -- SDSS J120644.18+515316.1NASA/IPAC Infrared Science Archive (IRSA)
Resources for position 12h06m44.2s, +51d53m16s (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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