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physical object > natural object > celestial body > star > emission line star > supernova > type II supernova
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type II supernova comparison table
Subject has energy release has spectral type is part of has extent has age has surface temperature has velocity is an instance of has frequency has surface density has optical brightness variation has star surface temperature has V magnitude has parallax has light curve has observational problem has position on celestial sphere has location has angular momentum has distance has radiation at surface has acronym has B magnitude has temperature has recovery time has spectra has proper motion has amplitude has energy source has energy production has catalog has outburst start time has absolute magnitude has U magnitude has volume has momentum has peak brightness has apparent magnitude has material has mass has ejecta velocity has image has name designated with has observable variation time scale has emission line has use has synonym
SN 1987A1049 to 1051 ergs Large Magellanic Cloud  greater than 1000 Kelvindetermined from proper motion and radial velocitytype II supernova0.01 to 0.05 per year (in our Galaxy)which depends on luminosity class0.2 magnitudes or greater  from the point of view of Earth's orbit some difficulty in distinguishing between various kindsfrom the point of view of Earthyoung, massive stars near the edge of spiral arms 167000 light yearswhich is diffused out from the hotter coreCV   hydrogen lines  gravitational contraction and or fusionwhich takes place primarily within the corestar catalog Mv = - 12 to - 13.5   108 solar luminosity units hydrogen, heliumhigher than type II supernova5000 km s-1
  1. R, S, T, U, V, W, X, Y, or Z and the genitive of the latin constellation name
  2. RR, RS, RT, RU, RV, RW, RX, RY, or RZ and the genitive of the latin constellation name when the single letter designations are exhausted
  3. AA...AZ, BB...BZ, etc. (omitting J), which ends with QQ...QZ and the genitive of the latin constellation namewhen the RR...RZ designations are exhausted
  4. V 335, V 336, etc., when the double letter designations are exhausted
within a period of decades supernova peak brightness distance determinationexplosive variable

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