Chapter 1. Stages in Stellar Evolution

Stages in Stellar Evolution

Interactive Exercise
Moon Phases

Stages in Stellar Evolution

Question

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Stages in Stellar Evolution Image
{"title":"Main-sequence star","description":"Incorrect. Try again.","type":"incorrect","color":"#ccffff","code":"[{\"shape\":\"circle\",\"coords\":\"46,171,26\"}]"} {"title":"Hydrogen-fusing core","description":"","type":"correct","color":"#ccffff","code":"[{\"shape\":\"circle\",\"coords\":\"87,243,27\"},{\"shape\":\"poly\",\"coords\":\"238,322,83,265\"}]"} {"title":"Red-giant star after helium fusion begins","description":"Incorrect. Try again.","type":"incorrect","color":"#ccffff","code":"[{\"shape\":\"circle\",\"coords\":\"405,169,26\"}]"} {"title":"Helium-fusing core","description":"Incorrect. Try again.","type":"incorrect","color":"#ccffff","code":"[{\"shape\":\"circle\",\"coords\":\"458,245,28\"}]"} {"title":"Young red-giant star","description":"Incorrect. Try again.","type":"incorrect","color":"#ccffff","code":"[{\"shape\":\"circle\",\"coords\":\"168,172,28\"}]"}

Question

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Stages in Stellar Evolution Image
{"title":"Main-sequence star","description":"","type":"correct","color":"#ccffff","code":"[{\"shape\":\"circle\",\"coords\":\"46,171,26\"}]"} {"title":"Hydrogen-fusing core","description":"Incorrect. Try again.","type":"incorrect","color":"#ccffff","code":"[{\"shape\":\"circle\",\"coords\":\"87,243,27\"},{\"shape\":\"poly\",\"coords\":\"238,322,83,265\"}]"} {"title":"Red-giant star after helium fusion begins","description":"Incorrect. Try again.","type":"incorrect","color":"#ccffff","code":"[{\"shape\":\"circle\",\"coords\":\"405,169,26\"}]"} {"title":"Helium-fusing core","description":"Incorrect. Try again.","type":"incorrect","color":"#ccffff","code":"[{\"shape\":\"circle\",\"coords\":\"458,245,28\"}]"} {"title":"Young red-giant star","description":"Incorrect. Try again.","type":"incorrect","color":"#ccffff","code":"[{\"shape\":\"circle\",\"coords\":\"168,172,28\"}]"}

Question

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Stages in Stellar Evolution Image
{"title":"Main-sequence star","description":"Incorrect. Try again.","type":"incorrect","color":"#ccffff","code":"[{\"shape\":\"circle\",\"coords\":\"46,171,26\"}]"} {"title":"Hydrogen-fusing core","description":"Incorrect. Try again.","type":"incorrect","color":"#ccffff","code":"[{\"shape\":\"circle\",\"coords\":\"87,243,27\"},{\"shape\":\"poly\",\"coords\":\"238,322,83,265\"}]"} {"title":"Red-giant star after helium fusion begins","description":"","type":"correct","color":"#ccffff","code":"[{\"shape\":\"circle\",\"coords\":\"405,169,26\"}]"} {"title":"Helium-fusing core","description":"Incorrect. Try again.","type":"incorrect","color":"#ccffff","code":"[{\"shape\":\"circle\",\"coords\":\"458,245,28\"}]"} {"title":"Young red-giant star","description":"Incorrect. Try again.","type":"incorrect","color":"#ccffff","code":"[{\"shape\":\"circle\",\"coords\":\"168,172,28\"}]"}

Question

0353TnlI/NPXnemvxADwoX2PvjDq0yKDPSlmoJ8JtzExegYBIfMYX77wtTNCft+xb/bZ1OWY4/0vGo+NXUO59/fxH+0=
Stages in Stellar Evolution Image
{"title":"Main-sequence star","description":"Incorrect. Try again.","type":"incorrect","color":"#ccffff","code":"[{\"shape\":\"circle\",\"coords\":\"46,171,26\"}]"} {"title":"Hydrogen-fusing core","description":"Incorrect. Try again.","type":"incorrect","color":"#ccffff","code":"[{\"shape\":\"circle\",\"coords\":\"87,243,27\"},{\"shape\":\"poly\",\"coords\":\"238,322,83,265\"}]"} {"title":"Red-giant star after helium fusion begins","description":"Incorrect. Try again.","type":"incorrect","color":"#ccffff","code":"[{\"shape\":\"circle\",\"coords\":\"405,169,26\"}]"} {"title":"Helium-fusing core","description":"","type":"correct","color":"#ccffff","code":"[{\"shape\":\"circle\",\"coords\":\"458,245,28\"}]"} {"title":"Young red-giant star","description":"Incorrect. Try again.","type":"incorrect","color":"#ccffff","code":"[{\"shape\":\"circle\",\"coords\":\"168,172,28\"}]"}

Question

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Stages in Stellar Evolution Image
{"title":"Main-sequence star","description":"Incorrect. Try again.","type":"incorrect","color":"#ccffff","code":"[{\"shape\":\"circle\",\"coords\":\"46,171,26\"}]"} {"title":"Hydrogen-fusing core","description":"Incorrect. Try again.","type":"incorrect","color":"#ccffff","code":"[{\"shape\":\"circle\",\"coords\":\"87,243,27\"},{\"shape\":\"poly\",\"coords\":\"238,322,83,265\"}]"} {"title":"Red-giant star after helium fusion begins","description":"Incorrect. Try again.","type":"incorrect","color":"#ccffff","code":"[{\"shape\":\"circle\",\"coords\":\"405,169,26\"}]"} {"title":"Helium-fusing core","description":"Incorrect. Try again.","type":"incorrect","color":"#ccffff","code":"[{\"shape\":\"circle\",\"coords\":\"458,245,28\"}]"} {"title":"Young red-giant star","description":"","type":"correct","color":"#ccffff","code":"[{\"shape\":\"circle\",\"coords\":\"168,172,28\"}]"}

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