NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-08-24 T13:06:18 PDT
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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. 16

INDEX for SN 1990N
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
   
4 Photometric data point(s) and SED   
Spectra   
Redshift-Independent Distances
198 Reference(s)   
2 Position data point(s)
2 Note(s)   

ESSENTIAL NOTE for SN 1990N (Back to INDEX)
N/A

CROSS-IDENTIFICATIONS for SN 1990N (Back to INDEX)
Object Names Type Object Names Type
SN 1990NSN NGC 4639:SN 1990N SN

COORDINATES for SN 1990N (Back to INDEX)

Position Reference:1993BICDS..42...17T

Reference    Frame     Longitude    Latitude        RA           DEC      Uncertainty Ellipse (arcsec)
                       (degrees)   (degrees)                              Semimajor Semiminor  PA(deg)
Equatorial (B1950.0)  190.107500   13.530278 12h40m25.800s +13d31m49.00s  1.00E+00  1.00E+00    0
Equatorial (J2000.0)  190.736174   13.256495 12h42m56.682s +13d15m23.38s  1.00E+00  1.00E+00    0
Ecliptic   (B1950.0)  183.792572   16.411336                              1.00E+00  1.00E+00    0
Ecliptic   (J2000.0)  184.492998   16.410343                              1.00E+00  1.00E+00    0
Galactic              294.366963   75.986780                              1.00E+00  1.00E+00    0
SuperGalactic         102.879978    0.730805                              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 1990N (Back to INDEX)

13 Distances found in NED View 13 Individual Distance Measurement(s) for SN 1990N

Summary Statistics computed by NED from 13 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 1990N Distance Modulus
(mag)
Metric Distance
(Mpc)
Mean 31.81 23.223
Std. Dev. 0.34 3.407
Min. 31.04 16.100
Max. 32.15 26.800
Median 31.99 25.000

CLASSIFICATIONS (TYPES, ATTRIBUTES) for SN 1990N (Back to INDEX)
TypeAs PublishedNED HomogenizedFlagReference Code
Distance IndicatorSNIaSNIa...1996ApJ...473...88R
10 Detailed Classification(s)


FOREGROUND GALACTIC EXTINCTION for SN 1990N (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]0.1120.0940.0710.0560.0390.1100.0860.0590.0440.0330.0180.0120.0080.004
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]0.1410.1120.0860.0690.0500.1340.0980.0710.0540.0380.0230.0150.0100.004


Galactic Extinction based on H I Column Densities and Galaxy Counts
(Burstein & Heiles; 1982AJ.....87.1165B) assuming Rv = 3.1:
AB = 0.050 mag
See Notes on Galactic Extinction for important caveats.

BASIC DATA for SN 1990N (Back to INDEX)
SuperNova Type             : Ia                  
Magnitude at Max and Filter: 12.57
System                     : V    
Date of Maximum Light      : JUL10
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.
Additional detailed measurements with references are also available by clicking below:
4 photometric data point(s)      

QUICK-LOOK PHOTOMETRY and LUMINOSITIES for SN 1990N (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)]
VisualB Johnson (FLWO) 12.67 +/- 0.05 mag 2009ApJ...700..331H-19.14 +/- 0.21 [mag] 4.16E+09 +/- 3.89E+08
NOTE: The above quantities are derived using an estimated Distance Modulus of (31.81 +/- 0.34) mag corresponding to
a Metric Distance of (23.223 +/- 3.407) Mpc using the Average NED-D value.
The quantities quoted above have not necessarily been corrected for foreground extinction, and no K-Corrections have been applied.

View details and SED for 4 Photometric data point(s) available in NED.

EXTERNAL ARCHIVES AND SERVICES for SN 1990N Help (Back to INDEX)
Resources for Object NamesSite/Service
Query SIMBAD by primary NED object name -- SN 1990NSIMBAD (CDS, Strasbourg, France)
Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- SN 1990NGALEX Mission Data Archive at MAST
Explore IRSA resources with RADAR (10 arcsec search radius) -- SN 1990NNASA/IPAC Infrared Science Archive (IRSA)
Resources for position 12h42m56.7s, +13d15m23s (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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