NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-04-25 T15:58:29 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. 2

INDEX for SN 1997cn
Essential Data (jump to sub-section of this query report):

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

Images

Spectra   
Redshift-Independent Distances
53 Reference(s)   
2 Position data point(s)

ESSENTIAL NOTE for SN 1997cn (Back to INDEX)
N/A

CROSS-IDENTIFICATIONS for SN 1997cn (Back to INDEX)
Object Names Type Object Names Type
SN 1997cnSN NGC 5490:SN 1997cn SN

COORDINATES for SN 1997cn (Back to INDEX)

Position Reference:1997IAUC.6661A...1L

Reference    Frame     Longitude    Latitude        RA           DEC      Uncertainty Ellipse (arcsec)
                       (degrees)   (degrees)                              Semimajor Semiminor  PA(deg)
Equatorial (B1950.0)  211.897188   17.777866 14h07m35.325s +17d46m40.32s  1.00E+00  1.00E+00    0
Equatorial (J2000.0)  212.490667   17.542306 14h09m57.760s +17d32m32.30s  1.00E+00  1.00E+00    0
Ecliptic   (B1950.0)  202.817705   28.706196                              1.00E+00  1.00E+00    0
Ecliptic   (J2000.0)  203.519419   28.703182                              1.00E+00  1.00E+00    0
Galactic                9.136496   69.506501                              1.00E+00  1.00E+00    0
SuperGalactic         103.525029   22.113703                              1.00E+00  1.00E+00    0
Additional detailed measurements with references are also available by clicking below:
2 Position data point(s)

REDSHIFT-INDEPENDENT DISTANCES for SN 1997cn (Back to INDEX)

7 Distances found in NED View 7 Individual Distance Measurement(s) for SN 1997cn

Summary Statistics computed by NED from 7 Distance(s) in the literature:
NOTE: These summary statistics are provided for "quick-look" reference only;
they are based exclusively on original values, as published.
No homogenization or corrections have been applied.


SN 1997cn Distance Modulus
(mag)
Metric Distance
(Mpc)
Mean 34.49 77.714
Std. Dev. 0.10 3.563
Min. 34.33 72.300
Max. 34.64 83.400
Median 34.52 78.100

CLASSIFICATIONS (TYPES, ATTRIBUTES) for SN 1997cn (Back to INDEX)
TypeAs PublishedNED HomogenizedFlagReference Code
Distance IndicatorSNIaSNIa...2006ApJ...645..488W
7 Detailed Classification(s)


FOREGROUND GALACTIC EXTINCTION for SN 1997cn (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]0.1160.0970.0730.0580.0400.1130.0880.0610.0450.0340.0190.0120.0080.004
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]0.1470.1170.0900.0720.0530.1400.1030.0750.0570.0400.0240.0160.0100.004


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 SN 1997cn (Back to INDEX)
SuperNova Type             : Ia pec              
Magnitude at Max and Filter: <15.8
System                     :      
Date of Maximum Light      :      
Spare 5                    :         

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.

EXTERNAL ARCHIVES AND SERVICES for SN 1997cn Help (Back to INDEX)
Resources for Object NamesSite/Service
Query SIMBAD by primary NED object name -- SN 1997cnSIMBAD (CDS, Strasbourg, France)
Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- SN 1997cnGALEX Mission Data Archive at MAST
Explore IRSA resources with RADAR (10 arcsec search radius) -- SN 1997cnNASA/IPAC Infrared Science Archive (IRSA)
Resources for position 14h09m57.7s, +17d32m32s (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)
The NRAO Data Archive System





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