NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-08-19 T09:48:51 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. 496

INDEX for [HB89] 1254+006
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
   Quick-Look Angular and Physical Sizes
   Classifications
   Foreground Galactic Extinction    
   External Services
Detailed Data (NED queries):

Images
   
60 Photometric data point(s) and SED   
Spectra   
Redshift-Independent Distances
60 Reference(s)   
16 Position data point(s)
21 Redshift data point(s)   
8 Diameter data point(s)   
PKS data    
HB89 data    

ESSENTIAL NOTE for [HB89] 1254+006 (Back to INDEX)
N/A

CROSS-IDENTIFICATIONS for [HB89] 1254+006 (Back to INDEX)
Object Names Type Object Names Type
[HB89] 1254+006QSO PKS J1257+0024 RadioS
4C +00.45 RadioSPMN J1257+0025 RadioS
PKS 1254+006 RadioSMRC 1254+006 RadioS
PKS 1254+00C RadioSMG1 J125704+0024 RadioS
2MASS J12570315+0024353 IrS [WB92] 1254+0041 RadioS
SDSS J125703.11+002435.9 QSO NVSS J125703+002438 RadioS
SDSS J125703.12+002435.7 QSO VLSS J1257.0+0024 RadioS
SDSS J125703.12+002435.8 QSO TXS 1254+006 RadioS
SDSS J125703.12+002435.9 QSO [VCV2001] J125703.1+002435 QSO
SDSS J125703.12+002436.0 QSO SDSS J1257+0024:[HSO2006] A QSO
GALEXASC J125703.15+002435.9 UvS [MGL2009] 1559 QSO
GALEXMSC J125703.25+002434.5 UvS [WHJ2012] J194.263016+00.40994QSO
LQAC 194+000 020 QSO [FOC2014] 367 RadioS
KX__0047 QSO [VFK2015] J194.26309+00.41014 RadioS
LEDA 2818306 G    
ULAS J125703.12+002435.9 QSO    
BZU J1257+0024 QSO    
PKS B1254+006 RadioS    

COORDINATES for [HB89] 1254+006 (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)  193.622975    0.680141 12h54m29.514s +00d40m48.51s  5.00E-01  5.00E-01    0
Equatorial (J2000.0)  194.263014    0.409939 12h57m03.123s +00d24m35.78s  5.00E-01  5.00E-01    0
Ecliptic   (B1950.0)  192.269666    6.003974                              5.00E-01  5.00E-01    0
Ecliptic   (J2000.0)  192.968873    6.002022                              5.00E-01  5.00E-01    0
Galactic              306.051079   63.247681                              5.00E-01  5.00E-01    0
SuperGalactic         116.193477    0.600887                              5.00E-01  5.00E-01    0
Additional detailed measurements with references are also available by clicking below:
16 Position data point(s)

REDSHIFT-INDEPENDENT DISTANCES for [HB89] 1254+006 (Back to INDEX)
 N/A 

CLASSIFICATIONS (TYPES, ATTRIBUTES) for [HB89] 1254+006 (Back to INDEX)
TypeAs PublishedNED HomogenizedFlagReference Code
Activity TypeQSOQSO...2006A&A...455..773V
1 Detailed Classification(s)


FOREGROUND GALACTIC EXTINCTION for [HB89] 1254+006 (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]0.0810.0680.0510.0410.0280.0790.0620.0430.0320.0240.0130.0080.0060.003
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]0.1020.0810.0620.0500.0370.0970.0710.0520.0390.0280.0170.0110.0070.003


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 [HB89] 1254+006 (Back to INDEX)
Helio. Radial Velocity     :    378030 +/-      140 km/s      
Redshift                   :  1.260971 +/- 0.000468       ; 2010MNRAS.405.2302H
Description                :               blazar
Magnitude and Filter       : 17.4g
Spare 3                    :  0.11
Spare 4                    :  0.11

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 Redshift data point(s)      60 photometric data point(s)      8 Diameter data point(s)      

QUANTITIES DERIVED FROM REDSHIFT for [HB89] 1254+006 (Details)(Back to INDEX)
Calculated and Corrected Velocities
V (Heliocentric)           :  378030 +/-    140 km/s      2010MNRAS.405.2302H
V (Kinematic LSR)          :  378034 +/-    140 km/s      1986MNRAS.221.1023K
V (Galactocentric GSR)     :  377954 +/-    140 km/s      1991RC3.9.C...0000d
V (Local Group)            :  377891 +/-    141 km/s      1996AJ....111..794K
V (3K CMB)                 :  378360 +/-    142 km/s      1996ApJ...473..576F
V (Virgo Infall only)      :  378086 +/-    141 km/s      2000ApJ...529..786M
V (Virgo + GA only)        :  378373 +/-    143 km/s      2000ApJ...529..786M
V (Virgo + GA + Shapley)   :  378448 +/-    143 km/s      2000ApJ...529..786M

Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/-   5 km/sec/Mpc)
D (Galactocentric GSR)     :  5177.4 +/-  362.4 Mpc      (m-M) = 43.57 +/- 0.15 mag
D (Local Group)            :  5176.6 +/-  362.4 Mpc      (m-M) = 43.57 +/- 0.15 mag
D (3K CMB)                 :  5183.0 +/-  362.8 Mpc      (m-M) = 43.57 +/- 0.15 mag
D (Virgo Infall only)      :  5179.3 +/-  362.6 Mpc      (m-M) = 43.57 +/- 0.15 mag
D (Virgo + GA only)        :  5183.2 +/-  362.8 Mpc      (m-M) = 43.57 +/- 0.15 mag
D (Virgo + GA + Shapley)   :  5184.2 +/-  362.9 Mpc      (m-M) = 43.57 +/- 0.15 mag

Scale at Hubble Flow Distances
Scale (Galactocentric GSR) :   25101 pc/arcsec = 25.101 kpc/arcsec = 1506.06 kpc/arcmin =  90.36 Mpc/degree
Scale (Local Group)        :   25097 pc/arcsec = 25.097 kpc/arcsec = 1505.81 kpc/arcmin =  90.35 Mpc/degree
Scale (3K CMB)             :   25128 pc/arcsec = 25.128 kpc/arcsec = 1507.67 kpc/arcmin =  90.46 Mpc/degree
Scale (Virgo Infall only)  :   25110 pc/arcsec = 25.110 kpc/arcsec = 1506.58 kpc/arcmin =  90.40 Mpc/degree
Scale (Virgo + GA only)    :   25129 pc/arcsec = 25.129 kpc/arcsec = 1507.73 kpc/arcmin =  90.46 Mpc/degree
Scale(Virgo + GA + Shapley):   25134 pc/arcsec = 25.134 kpc/arcsec = 1508.03 kpc/arcmin =  90.48 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 = 0.066 arcmin and Selected Redshift, defined by the Velocity Range: from to km/sec where V(Heliocentric) = 378030 km/sec
Cosmology-Corrected Quantities [Ho = 73.00 km/sec/Mpc, Ωmatter = 0.27, Ωvacuum = 0.73] [Redshift 1.262072 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation] Luminosity Distance : 8632 Mpc (m-M) = 44.68 mag Angular-Size Distance : 1687 Mpc (m-M) = 41.14 mag Co-Moving Radial Distance : 3816 Mpc (m-M) = 42.91 mag Co-Moving Tangential Dist. : 3816 Mpc (m-M) = 42.91 mag Co-Moving Volume : 233 Gpc^3 Light Travel-Time : 8.424 Gyr Age at Redshift 1.262072 : 4.875 Gyr Age of Universe : 13.299 Gyr Scale (Cosmology Corrected): 8178 pc/arcsec = 8.178 kpc/arcsec = 490.69 kpc/arcmin = 29.44 Mpc/degree Surface Brightness Dimming : Flux Density per Unit Area = 0.03819; Magnitude per Unit Area = 3.545 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 [HB89] 1254+006 (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)]
UltravioletNUV (GALEX) AB 18.2447 +/- 0.0306942 mag 2012GASC..C...0000S-26.44 +/- 0.50 [mag] 5.47E+12 +/- 1.11E+12
Visuali (SDSS Petrosian)AB 17.368 +/- 0.006 asinh mag 2004SDSS2.C...0000:-27.31 +/- 0.50 [mag] 5.19E+12 +/- 1.04E+12
Near-InfraredK_s (2MASS/CTIO) 15.337 +/- 0.193 mag 2006AJ....131.1163S-29.34 +/- 0.54 [mag] 1.58E+12 +/- 4.22E+11
Radio74 MHz (VLA) 3.91 +/- 0.40 Jy 2007AJ....134.1245C 2.57E+36 +/- 5.78E+35 [W] 6.69E+09 +/- 1.50E+09
NOTE: The above quantities are derived using a Distance Modulus of 44.68 mag corresponding to
a Luminosity Distance of 8631.7 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 60 Photometric data point(s) available in NED.

QUICK-LOOK ANGULAR & PHYSICAL DIAMETERS for [HB89] 1254+006 (Back to INDEX)

The largest diameters in the Visual and Near-Infrared spectral regions, when available:

Passband Apparent Major Axis
(2a) [arcsec]
Apparent Minor Axis
(2b) [arcsec]
PA
[degrees]
(J2000.0)
Reference Level RefcodePhysical Major Axis
(2a) [kpc]
Physical Minor Axis
(2b) [kpc]
r (SDSS Isophotal) 7.406.4477 25.0 mag arcsec^-2^ 2007SDSS6.C...0000:60.5252.65
NOTE: At z > 0.5, physical diameters are derived using a Scale (Cosmology Corrected) of 8.178 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 [HB89] 1254+006 Help (Back to INDEX)
Resources for Object NamesSite/Service
Fourth Cambridge Survey -- 4C +00.45 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
version
SDSS Sky Server
Parkes Radio Sources Catalogue -- PKS B1254+006 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Parkes-MIT-NRAO 4.85GHz Surveys -- PMN J1257+0025 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
NRAO/VLA Sky Survey (NVSS)
Texas Survey of radio sources at 365MHz -- TXS 1254+006 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Retrieve mean data from LEDA -- PGC 2818306 The Lyon/Meudon Extragalactic Database (LEDA)
Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- [HB89] 1254+006GALEX Mission Data Archive at MAST
Explore IRSA resources with RADAR (10 arcsec search radius) -- [HB89] 1254+006NASA/IPAC Infrared Science Archive (IRSA)
Resources for position 12h57m03.1s, +00d24m36s (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)
    Size:     GIF     FITS File  
Faint Images of the Radio Sky at Twenty-Centimeters
The NRAO Data Archive System





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