https://padlet.com/lisle202/he6lp8doxgfk en-us 2018-09-24 14:57:29 UTC 2025-08-08 01:42:46 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Planets.png jh21045 https://padlet.com/lisle202/he6lp8doxgfk/wish/285065436 A star that increases brightness due to a catastrophic explosion]]> 2018-09-24 14:57:29 UTC https://padlet.com/lisle202/he6lp8doxgfk/wish/285065436 jh21045 https://padlet.com/lisle202/he6lp8doxgfk/wish/285065437 Main sequence stars fuse hydrogen atoms to form helium atoms in their cores. These stars can range from about a tenth of the mass of the sun to up to 200 times as massive.]]> 2018-09-24 14:57:29 UTC https://padlet.com/lisle202/he6lp8doxgfk/wish/285065437 jh21045 https://padlet.com/lisle202/he6lp8doxgfk/wish/285065438 a cloud of gas and dust in outer space, visible in the night sky either as an indistinct bright patch or as a dark silhouette against other luminous matter.

]]> 2018-09-24 14:57:29 UTC https://padlet.com/lisle202/he6lp8doxgfk/wish/285065438 jh21045 https://padlet.com/lisle202/he6lp8doxgfk/wish/285065439 A celestial object of very small radius (typically 18 miles/30 km) and very high density, composed predominantly of closely packed neutrons]]> 2018-09-24 14:57:29 UTC https://padlet.com/lisle202/he6lp8doxgfk/wish/285065439 jh21045 https://padlet.com/lisle202/he6lp8doxgfk/wish/285065440 the luminous envelope of a star from which its light and heat radiate]]> 2018-09-24 14:57:29 UTC https://padlet.com/lisle202/he6lp8doxgfk/wish/285065440 jh21045 https://padlet.com/lisle202/he6lp8doxgfk/wish/285065441 a ring-shaped nebula formed by an expanding shell of gas around an aging star.]]> 2018-09-24 14:57:29 UTC https://padlet.com/lisle202/he6lp8doxgfk/wish/285065441 jh21045 https://padlet.com/lisle202/he6lp8doxgfk/wish/285065442 a contracting mass of gas that represents an early stage in the formation of a star, before nucleosynthesis has begun.]]> 2018-09-24 14:57:29 UTC https://padlet.com/lisle202/he6lp8doxgfk/wish/285065442 jh21045 https://padlet.com/lisle202/he6lp8doxgfk/wish/285065444 a very large star of high luminosity and low surface temperature. ]]> 2018-09-24 14:57:29 UTC https://padlet.com/lisle202/he6lp8doxgfk/wish/285065444 jh21045 https://padlet.com/lisle202/he6lp8doxgfk/wish/285065446 A NASA mission which has been observing the Sun since 2010.]]> 2018-09-24 14:57:29 UTC https://padlet.com/lisle202/he6lp8doxgfk/wish/285065446 jh21045 https://padlet.com/lisle202/he6lp8doxgfk/wish/285065447 A spot or patch appearing from time to time on the sun's surface, appearing dark by contrast with its surroundings.]]> 2018-09-24 14:57:29 UTC https://padlet.com/lisle202/he6lp8doxgfk/wish/285065447 jh21045 https://padlet.com/lisle202/he6lp8doxgfk/wish/285065448 A sudden flash of increased brightness on the outer layer of the sun]]> 2018-09-24 14:57:29 UTC https://padlet.com/lisle202/he6lp8doxgfk/wish/285065448 jh21045 https://padlet.com/lisle202/he6lp8doxgfk/wish/285065449 A very large star that is even brighter than a giant, often despite being relatively cool.]]> 2018-09-24 14:57:29 UTC https://padlet.com/lisle202/he6lp8doxgfk/wish/285065449 jh21045 https://padlet.com/lisle202/he6lp8doxgfk/wish/285065451 A white dwarf is formed when a low-mass star has exhausted all its central nuclear fuel]]> 2018-09-24 14:57:29 UTC https://padlet.com/lisle202/he6lp8doxgfk/wish/285065451 jh21045 https://padlet.com/lisle202/he6lp8doxgfk/wish/285065453 A region of space having a gravitational field so intense that no matter or radiation can escape.]]> 2018-09-24 14:57:29 UTC https://padlet.com/lisle202/he6lp8doxgfk/wish/285065453 jh21045 https://padlet.com/lisle202/he6lp8doxgfk/wish/285065455 a reddish gaseous layer immediately above the photosphere of the sun or another star. Together with the corona, it constitutes the star's outer atmosphere.]]> 2018-09-24 14:57:29 UTC https://padlet.com/lisle202/he6lp8doxgfk/wish/285065455 jh21045 https://padlet.com/lisle202/he6lp8doxgfk/wish/285065456 A region of turbulent plasma between a star's core and its visible photo sphere.]]> 2018-09-24 14:57:29 UTC https://padlet.com/lisle202/he6lp8doxgfk/wish/285065456 jh21045 https://padlet.com/lisle202/he6lp8doxgfk/wish/285065459 the rarefied gaseous envelope of the sun and other stars. The sun's corona is normally visible only during a total solar eclipse when it is seen as an irregularly shaped pearly glow surrounding the darkened disk of the moon.

]]> 2018-09-24 14:57:29 UTC https://padlet.com/lisle202/he6lp8doxgfk/wish/285065459 jh21045 https://padlet.com/lisle202/he6lp8doxgfk/wish/285065460 A significant release of plasma and accompanying magnetic field from the solar corona ]]> 2018-09-24 14:57:29 UTC https://padlet.com/lisle202/he6lp8doxgfk/wish/285065460 jh21045 https://padlet.com/lisle202/he6lp8doxgfk/wish/285065461 a scatter plot of stars showing the relationship between the stars' absolute magnitudes or luminosity versus their stellar classifications or effective temperatures.]]> 2018-09-24 14:57:29 UTC https://padlet.com/lisle202/he6lp8doxgfk/wish/285065461 jh21045 https://padlet.com/lisle202/he6lp8doxgfk/wish/285065462 the brightness of a celestial object]]> 2018-09-24 14:57:29 UTC https://padlet.com/lisle202/he6lp8doxgfk/wish/285065462