NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2021-12-08 T08:34:13 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 NGC 6218


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    MESSIER 012                    16h47m14.5s -01d56m52s *Cl       ...       ...       ...     ...    22     1    8    4     0    0     0 Retrieve Retrieve 1   

Detailed information for each object


Object No. 1 - MESSIER 012

INDEX for MESSIER 012
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
  • 8 Photometric data point(s) and SED   
  • Spectra   
    Redshift-Independent Distances
    22 Reference(s)   
    4 Position data point(s)
    1 Note(s)   

    ESSENTIAL NOTE for MESSIER 012 (Back to INDEX)
    N/A

    CROSS-IDENTIFICATIONS for MESSIER 012 (Back to INDEX)
    Object Names Type Object Names Type
    MESSIER 012!*Cl 2MASS J16471471-0156518 IrS
    NGC 6218 !*Cl LEDA 2802662 *Cl

    COORDINATES for MESSIER 012 (Back to INDEX)

    Position Reference:1986AJ.....91..312S

    Reference    Frame     Longitude    Latitude        RA           DEC      Uncertainty Ellipse (arcsec)
                           (degrees)   (degrees)                              Semimajor Semiminor  PA(deg)
    Equatorial (B1950.0)  251.160958   -1.859417  16h44m38.63s  -01d51m33.9s  2.50E+00  2.50E+00    0
    Equatorial (J2000.0)  251.810484   -1.947821  16h47m14.51s  -01d56m52.2s  2.50E+00  2.50E+00    0
    Ecliptic   (B1950.0)  249.875063   20.279490                              2.50E+00  2.50E+00    0
    Ecliptic   (J2000.0)  250.574315   20.273201                              2.50E+00  2.50E+00    0
    Galactic               15.716637   26.312529                              2.50E+00  2.50E+00    0
    SuperGalactic         142.837196   53.823202                              2.50E+00  2.50E+00    0
    
    Additional detailed measurements with references are also available by clicking below:
    4 Position data point(s)

    REDSHIFT-INDEPENDENT DISTANCES for MESSIER 012 (Back to INDEX)
     N/A 

    CLASSIFICATIONS (TYPES, ATTRIBUTES) for MESSIER 012 (Back to INDEX)
     N/A 

    FOREGROUND GALACTIC EXTINCTION for MESSIER 012 (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]0.7610.6360.4810.3810.2640.7440.5800.4010.2980.2220.1240.0790.0530.027
    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]0.9590.7610.5850.4720.3420.9090.6690.4850.3680.2610.1590.1020.0650.027


    Galactic Extinction based on H I Column Densities and Galaxy Counts
    (Burstein & Heiles; 1982AJ.....87.1165B) assuming Rv = 3.1:
    AB = 0.400 mag
    See Notes on Galactic Extinction for important caveats.

    BASIC DATA for MESSIER 012 (Back to INDEX)
    
    Description                :                     
    Magnitude and Filter       :      
    Spare 3                    :      
    Spare 4                    :      
    
    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:
    8 photometric data point(s)      

    QUICK-LOOK PHOTOMETRY and LUMINOSITIES for MESSIER 012 (Back to INDEX)
     N/A 

    EXTERNAL ARCHIVES AND SERVICES for MESSIER 012 Help (Back to INDEX)
    Resources for Object NamesSite/Service
    Query SIMBAD by primary NED object name -- MESSIER 012SIMBAD (CDS, Strasbourg, France)
    Revised New General Catalogue -- NGC 6218 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- MESSIER 012GALEX Mission Data Archive at MAST
    Explore IRSA resources with RADAR (10 arcsec search radius) -- MESSIER 012NASA/IPAC Infrared Science Archive (IRSA)
    Resources for position 16h47m14.5s, -01d56m52s (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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