Supernova: Difference between revisions

Latest revision as of 11:55, 6 May 2019

Massive stellar explosion occurring at the end of a star's natural life cycle due to fusion pressure no longer able to balance against gravitational core collapse
- Results in a stellar remnant in the form of either a neutron star or a black hole
Resulting explosion produces a wavefront of intense radiation, devastating planetary ecosystems within 25-50 ly
- Often also results in a surrounding micronebula, or even full nebula

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 ==Known supernovae==
+* Limited specifically to supernovae within the [[Milky Way]]
+** [[Simeis 147]] - c.40000ya
+** [[IC 443]] - c.30000ya
+** [[W50]] - c.20000ya
+** [[Vela SNR]] - c.10000 - 9000 BCE
+** [[Ganidra]] - c.8000 BCE
+** [[Kesteven 79]] - c.8500 - 7000 BCE
+** [[Cygnus Loop]] - c.6000 - 3000 BCE
+** [[Puppis A]] - c.1700 BCE
+** [[RCW 103]] - c.100
+** [[SN 185]] - 185
+** [[SN 386]] - 386
+** [[SN 393]] - 393
+** [[W49B]] - c.1000
+** [[SN 1006]] - 1006
+** [[Crab Nebula]] - 1054
+** [[SN 1181]] - 1181
+** [[SN 1572]] - 1572
+** [[SN 1604]] - 1604
+** [[Cassiopeia A]] - c.1680
+** [[SNR G1.9+0.3]] - c.1868
+** [[FGC-758]] - 2168
+** [[Beta Volanis]] - 2230s
+** [[Alpha Lupi]] - 2236
+** [[Minara]] - 2268
+** [[Beta Niobe]] - 2269
+** [[Beta Stromgren]] - 2366
-* [[Beta Volcanis]]
+==Known supernova candidates==
-* [[FGC-758]]
-* [[Ganidra]]
-==Known pending supernovae==
+* [[Eta Carinae]] (Unclear)
+* [[Antares]] (c.10,000y)
-* [[Betelgeuse]] (c. 1my from present)
+* [[Betelgeuse]] (c.1my)
+* [[Deneb]] (millions of years)
 [[Category:Astronomy]]