NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-06-16 T13:31:51 PDT
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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. 251

INDEX for MG1 J215956+1850
Essential Data (jump to sub-section of this query report):

   Essential Note    
   Cross-IDs    
   Coordinates    
   Basic Data   
   Redshift-Independent Distances
   Quick-Look Photometry and Luminosities
   Classifications
   Foreground Galactic Extinction    
   External Services
Detailed Data (NED queries):

Images
   
7 Photometric data point(s) and SED   
Spectra   
Redshift-Independent Distances
6 Reference(s)   
2 Position data point(s)

ESSENTIAL NOTE for MG1 J215956+1850 (Back to INDEX)
N/A

CROSS-IDENTIFICATIONS for MG1 J215956+1850 (Back to INDEX)
Object Names Type Object Names Type
MG1 J215956+1850RadioSNVSS J215956+185116 RadioS
87GB 215735.2+183637 RadioSVLSS J2159.9+1851 RadioS
87GB[BWE91] 2157+1836 RadioSTXS 2157+186 RadioS
[WB92] 2157+1836 RadioS    
     

COORDINATES for MG1 J215956+1850 (Back to INDEX)

Position Reference:1998AJ....115.1693C

Reference    Frame     Longitude    Latitude        RA           DEC      Uncertainty Ellipse (arcsec)
                       (degrees)   (degrees)                              Semimajor Semiminor  PA(deg)
Equatorial (B1950.0)  329.391886   18.614256 21h57m34.053s +18d36m51.32s  1.50E+00  1.10E+00    0
Equatorial (J2000.0)  329.984958   18.854583 21h59m56.390s +18d51m16.50s  1.50E+00  1.10E+00    0
Ecliptic   (B1950.0)  338.841599   29.001362                              1.50E+00  1.10E+00   23
Ecliptic   (J2000.0)  339.536718   28.999529                              1.50E+00  1.10E+00   23
Galactic               76.094064  -28.025647                              1.50E+00  1.10E+00   43
SuperGalactic         307.532520   45.863552                              1.50E+00  1.10E+00   87
Additional detailed measurements with references are also available by clicking below:
2 Position data point(s)

REDSHIFT-INDEPENDENT DISTANCES for MG1 J215956+1850 (Back to INDEX)
 N/A 

CLASSIFICATIONS (TYPES, ATTRIBUTES) for MG1 J215956+1850 (Back to INDEX)
 N/A 

FOREGROUND GALACTIC EXTINCTION for MG1 J215956+1850 (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]0.3250.2720.2060.1630.1130.3180.2480.1720.1270.0950.0530.0340.0230.011
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]0.4100.3250.2500.2020.1460.3890.2860.2080.1570.1120.0680.0430.0280.012


Galactic Extinction based on H I Column Densities and Galaxy Counts
(Burstein & Heiles; 1982AJ.....87.1165B) assuming Rv = 3.1:
AB = 0.220 mag
See Notes on Galactic Extinction for important caveats.

BASIC DATA for MG1 J215956+1850 (Back to INDEX)
Log (Flux Density S in mJy):  1.79
Frequency                  :  4.85 GHz
Sp. Index (S=A*Freq^Index^):    -0.9 
Description                : symmetric double    
Size (arcmin)              :      

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:
7 photometric data point(s)      

QUICK-LOOK PHOTOMETRY and LUMINOSITIES for MG1 J215956+1850 (Back to INDEX)
 N/A 

EXTERNAL ARCHIVES AND SERVICES for MG1 J215956+1850 Help (Back to INDEX)
Resources for Object NamesSite/Service
Query SIMBAD by primary NED object name -- MG1 J215956+1850SIMBAD (CDS, Strasbourg, France)
NRAO/VLA Sky Survey (NVSS)
Texas Survey of radio sources at 365MHz -- TXS 2157+186 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- MG1 J215956+1850GALEX Mission Data Archive at MAST
Explore IRSA resources with RADAR (10 arcsec search radius) -- MG1 J215956+1850NASA/IPAC Infrared Science Archive (IRSA)
Resources for position 21h59m56.4s, +18d51m16s (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)
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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