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Hottest planet in galaxy spotted
Published: 18 January, 2011, 14:17
Edited: 09 February, 2011, 23:06
The hottest-ever planet found by scientists so far is WASP 33 b orbiting a star some 380 light-years away in the constellation Andromeda.
sounds more like a binary companion star in the red dwarf star classification to me than a planet, let alone a gass giant that "migrated closer to its star... has anyone ever observed a planet migrating from one orbit to another in the real world? If they have I am certainly unaware of it!
@Graeme: The article said University of St Andrews in Scotland not University of St Andrews in England. Read again.
Some scientists have suspected that orbital paths for planets move for some time.
Several Moons in the outer planets are believed to be captured objects and the eccentric orbit of Pluto could be from a collision or a failed capture too.
The main evidence for the idea of migrating orbits is the discovery of gas giant planets near stars... general planet forming theory suggests that gas giants can only form in the cold of space well away from their stars and that an gas giants found near their starts must have formed further out and migrated inwards.
@GarryB
Modern simulations point the other way. That is, that there was way to little mass in the outer parts of the stellar disk to make those outer giants. Theories say that gravitanional interactions between the planets have throwed them outwards, but those (theories) don't have much proof.
The University of St Andrews is not in England. If you're creating a factual blog, get your facts right.