NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2018-12-15 T16:53:25 PST
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You have selected the following parameters to search on:

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 for object 3C 171


1 objects found in NED.    

SOURCE LIST

 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    3C 171                         06h55m14.8s +54d09m00s G      >30000  0.238400      18.89    ...   226     6   87    7     1    2     0 Retrieve Retrieve 1   

Detailed information for each object


Object No. 1 - 3C 171

INDEX for 3C 171
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
   
87 Photometric data point(s) and SED   
Spectra   
Redshift-Independent Distances
226 Reference(s)   
7 Position data point(s)
1 Redshift data point(s)   
2 Diameter data point(s)   
6 Note(s)   

ESSENTIAL NOTE for 3C 171 (Back to INDEX)
N/A

CROSS-IDENTIFICATIONS for 3C 171 (Back to INDEX)
Object Names Type Object Names Type
3C 171RadioSDA 225 RadioS
4C +54.11 RadioSNRAO 0250 RadioS
GALEXASC J065514.73+540857.2 UvS TXS 0651+542 RadioS
LQAC 103+054 001 G GB6 J0655+5409 RadioS
LEDA 2817570 G LHE 183 RadioS
87GB 065109.5+541304 RadioSCXO J065514.7+540857 XrayS
87GB[BWE91] 0651+5413 RadioS[VE75] CL 0651+54 RadioS
[WB92] 0651+5413 RadioS[KWP81] 0651+54 RadioS
NVSS J065514+540900 RadioS[VCV2001] J065514.7+540859 G
VLSS J0655.2+5408 RadioS[VCV2006] J065514.7+540859 G
6C B065111.0+541250 RadioS    
S4 0651+54 RadioS    
OH +585 RadioS    
CTA 044 RadioS    

COORDINATES for 3C 171 (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) 102.7957917  54.2140972 06h51m10.990s +54d12m50.75s  5.00E-01  3.00E-01   90
Equatorial (J2000.0) 103.8117049  54.1500416 06h55m14.809s +54d09m00.15s  5.00E-01  3.00E-01   90
Ecliptic   (B1950.0)  98.7043987  31.1543773                              5.00E-01  3.00E-01   84
Ecliptic   (J2000.0)  99.4037749  31.1607063                              5.00E-01  3.00E-01   84
Galactic             162.1731043  22.2261280                              5.00E-01  3.00E-01   16
SuperGalactic         26.4863763 -20.1410145                              5.00E-01  3.00E-01   90
Additional detailed measurements with references are also available by clicking below:
7 Position data point(s)

REDSHIFT-INDEPENDENT DISTANCES for 3C 171 (Back to INDEX)
 N/A 

CLASSIFICATIONS (TYPES, ATTRIBUTES) for 3C 171 (Back to INDEX)
TypeAs PublishedNED HomogenizedFlagReference Code
Radio MorphologyIIFR II...1983MNRAS.204..151L
Activity TypeS2Sy 2...2006A&A...455..773V
4 Detailed Classification(s)


FOREGROUND GALACTIC EXTINCTION for 3C 171 (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]0.2330.1950.1470.1160.0810.2280.1770.1230.0910.0680.0380.0240.0160.008
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]0.2930.2330.1790.1440.1050.2780.2050.1480.1120.0800.0490.0310.0200.008


Galactic Extinction based on H I Column Densities and Galaxy Counts
(Burstein & Heiles; 1982AJ.....87.1165B) assuming Rv = 3.1:
AB = 0.240 mag
See Notes on Galactic Extinction for important caveats.

BASIC DATA for 3C 171 (Back to INDEX)
Helio. Radial Velocity     :     71471 km/s       
Redshift                   :  0.238400            1991ApJS...75..297H
Major Diameter (arcmin)    :      
Minor Diameter (arcmin)    :      
Magnitude and Filter       : 18.89
Classifications            : N galaxy;NLRG  Sy2  

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:
1 Redshift data point(s)      87 photometric data point(s)      2 Diameter data point(s)      

QUANTITIES DERIVED FROM REDSHIFT(Details)
Calculated and Corrected Velocities
V (Heliocentric)           :   71471  km/s                1991ApJS...75..297H
V (Kinematic LSR)          :   71469  km/s                1986MNRAS.221.1023K
V (Galactocentric GSR)     :   71531 +/-      2 km/s      1991RC3.9.C...0000d
V (Local Group)            :   71566 +/-      6 km/s      1996AJ....111..794K
V (3K CMB)                 :   71528 +/-      4 km/s      1996ApJ...473..576F
V (Virgo Infall only)      :   71616 +/-      7 km/s      2000ApJ...529..786M
V (Virgo + GA only)        :   71393 +/-     17 km/s      2000ApJ...529..786M
V (Virgo + GA + Shapley)   :   71364 +/-     17 km/s      2000ApJ...529..786M

Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/- 5 km/sec/Mpc)
D (Galactocentric GSR)     :   979.9 +/-   68.6 Mpc      (m-M) = 39.96 +/- 0.15 mag
D (Local Group)            :   980.4 +/-   68.6 Mpc      (m-M) = 39.96 +/- 0.15 mag
D (3K CMB)                 :   979.8 +/-   68.6 Mpc      (m-M) = 39.96 +/- 0.15 mag
D (Virgo Infall only)      :   981.0 +/-   68.7 Mpc      (m-M) = 39.96 +/- 0.15 mag
D (Virgo + GA only)        :   978.0 +/-   68.5 Mpc      (m-M) = 39.95 +/- 0.15 mag
D (Virgo + GA + Shapley)   :   977.6 +/-   68.4 Mpc      (m-M) = 39.95 +/- 0.15 mag

Scale at Hubble Flow Distances
Scale (Galactocentric GSR) :    4751 pc/arcsec =  4.751 kpc/arcsec = 285.03 kpc/arcmin =  17.10 Mpc/degree
Scale (Local Group)        :    4753 pc/arcsec =  4.753 kpc/arcsec = 285.17 kpc/arcmin =  17.11 Mpc/degree
Scale (3K CMB)             :    4750 pc/arcsec =  4.750 kpc/arcsec = 285.02 kpc/arcmin =  17.10 Mpc/degree
Scale (Virgo Infall only)  :    4756 pc/arcsec =  4.756 kpc/arcsec = 285.37 kpc/arcmin =  17.12 Mpc/degree
Scale (Virgo + GA only)    :    4741 pc/arcsec =  4.741 kpc/arcsec = 284.48 kpc/arcmin =  17.07 Mpc/degree
Scale(Virgo + GA + Shapley):    4740 pc/arcsec =  4.740 kpc/arcsec = 284.37 kpc/arcmin =  17.06 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 = 0.352 arcmin and Selected Redshift, defined by the Velocity Range: from to km/sec where V(Heliocentric) = 71471 km/sec
Cosmology-Corrected Quantities [Ho = 73.00 km/sec/Mpc, Ωmatter = 0.27, Ωvacuum = 0.73] [Redshift 0.238591 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation] Luminosity Distance : 1152 Mpc (m-M) = 40.31 mag Angular-Size Distance : 751 Mpc (m-M) = 39.38 mag Co-Moving Radial Distance : 930 Mpc (m-M) = 39.84 mag Co-Moving Tangential Dist. : 930 Mpc (m-M) = 39.84 mag Co-Moving Volume : 3.37 Gpc^3 Light Travel-Time : 2.726 Gyr Age at Redshift 0.238591 : 10.573 Gyr Age of Universe : 13.299 Gyr Scale (Cosmology Corrected): 3641 pc/arcsec = 3.641 kpc/arcsec = 218.46 kpc/arcmin = 13.11 Mpc/degree Surface Brightness Dimming : Flux Density per Unit Area = 0.42490; Magnitude per Unit Area = 0.9293 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 171 (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)]
X-Ray0.5-7 keV (Chandra) 319E-15 +/- 24E-15 erg/cm^2^/s 2010ApJ...714..589M 5.07E+36 +/- 1.08E+36 [W] 1.32E+10 +/- 2.82E+09
UltravioletFUV (GALEX) AB 19.9767 +/- 0.157868 mag 2012GASC..C...0000S-20.33 +/- 0.52 [mag] 2.99E+10 +/- 7.39E+09
VisualR Cousins 18.12 +/- 0.13 mag 1985MNRAS.213..899E-22.19 +/- 0.52 [mag] 3.36E+10 +/- 7.97E+09
Near-InfraredK (UKIRT) 14.69 +/- 0.11 mag 1984MNRAS.211..833L-25.62 +/- 0.51 [mag] 4.95E+10 +/- 1.12E+10
Mid-Infrared24 microns (MIPS) 7.5 +/- 0.05 milliJy 2005ApJ...629...88S 1.51E+37 +/- 3.03E+36 [W] 3.93E+10 +/- 7.87E+09
Far-Infrared70 microns (MIPS) 19 +/- 3 milliJy 2005ApJ...629...88S 1.27E+37 +/- 3.23E+36 [W] 3.30E+10 +/- 8.40E+09
Radio12.6 MHz (UTR-1) 3.1E-24 +/- 25 % W m^-2^ Hz^-1^ 1969MNRAS.143..289B 6.20E+35 +/- 1.99E+35 [W] 1.61E+09 +/- 5.17E+08
NOTE: The above quantities are derived using a Distance Modulus of 40.31 mag corresponding to
a Luminosity Distance of 1152.1 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 87 Photometric data point(s) available in NED.

QUICK-LOOK ANGULAR & PHYSICAL DIAMETERS for 3C 171 (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]
POSS1 103a-E -999.00...129 About 23 R mag arcsec^-2^ 1971MNRAS.151..421M-4734.76...
NOTE: At z <= 0.5, physical diameters are derived using a Scale at the Hubble Flow Distance (Virgo + GA + Shapley) of 4.740 kpc/arcsec.
The quantities quoted above have not necessarily been corrected for foreground extinction.

View details for 2 Diameter data point(s) available in NED.

EXTERNAL ARCHIVES AND SERVICES for 3C 171 Help (Back to INDEX)
Resources for Object NamesSite/Service
Query SIMBAD by primary NED object name -- 3C 171SIMBAD (CDS, Strasbourg, France)
Fourth Cambridge Survey -- 4C +54.11 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
NRAO/VLA Sky Survey (NVSS)
Texas Survey of radio sources at 365MHz -- TXS 0651+542 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
GB6 catalog of radio sources -- GB6 J0655+5409 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Retrieve mean data from LEDA -- PGC 2817570 The Lyon/Meudon Extragalactic Database (LEDA)
Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- 3C 171GALEX Mission Data Archive at MAST
Explore IRSA resources with RADAR (10 arcsec search radius) -- 3C 171NASA/IPAC Infrared Science Archive (IRSA)
Resources for position 06h55m14.8s, +54d09m00s (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)
Explore resources with DataScope (15 arcmin search radius)HEASARC (NASA/GSFC)
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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