|INDEX for SN 1987A|
|Detailed Data (NED queries):|
ESSENTIAL NOTE for SN 1987A (Back to INDEX)|
CROSS-IDENTIFICATIONS for SN 1987A (Back to INDEX)|
COORDINATES for SN 1987A (Back to INDEX)|
Reference Frame Longitude Latitude RA DEC Uncertainty Ellipse (arcsec) (degrees) (degrees) Semimajor Semiminor PA(deg) Equatorial (B1950.0) 83.957917 -69.299167 05h35m49.900s -69d17m57.00s 1.00E+00 1.00E+00 0 Equatorial (J2000.0) 83.866139 -69.269577 05h35m27.873s -69d16m10.48s 1.00E+00 1.00E+00 0 Ecliptic (B1950.0) 306.824858 -86.440899 1.00E+00 1.00E+00 0 Ecliptic (J2000.0) 307.596120 -86.445685 1.00E+00 1.00E+00 0 Galactic 279.703313 -31.937147 1.00E+00 1.00E+00 0 SuperGalactic 214.903729 -35.005091 1.00E+00 1.00E+00 0Additional detailed measurements with references are also available by clicking below:
4 Position data point(s)
REDSHIFT-INDEPENDENT DISTANCES for SN 1987A (Back to INDEX)|
27 Distances found in NED View 27 Individual Distance Measurement(s) for SN 1987A
Summary Statistics computed by NED from 27 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.
CLASSIFICATIONS (TYPES, ATTRIBUTES) for SN 1987A (Back to INDEX)|
FOREGROUND GALACTIC EXTINCTION for SN 1987A (Back to INDEX)|
Galactic Extinction from the Schlafly & Finkbeiner 2011, Appendix; 2011ApJ...737..103S (SF11) recalibration
For completeness, we include the original SFD98 values: WARNING: This position is 68.895 arc minutes from the center of the LMC. The value of E(B-V) is not derived from the IRAS/COBE extinction maps.
Galactic Extinction based on H I Column Densities and Galaxy Counts
(Burstein & Heiles; 1982AJ.....87.1165B) assuming Rv = 3.1:
AB = 0.250 mag
See Notes on Galactic Extinction for important caveats.
BASIC DATA for SN 1987A (Back to INDEX)|
SuperNova Type : IIF Magnitude at Max and Filter: 13.2R System : V Date of Maximum Light : MAY20 Spare 5 : NOTE: This information is indicative only. With the exception of the
QUICK-LOOK PHOTOMETRY and LUMINOSITIES for SN 1987A (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).
a Metric Distance of (0.051 +/- 0.005) 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 54 Photometric data point(s) available in NED.
EXTERNAL ARCHIVES AND SERVICES for SN 1987A Help (Back to INDEX)|