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wish could tell you for sure, happy Thursday. any how, I love this day that is ruled by Jupiter
originally posted by: 3danimator2014
Hi all,
Gearing up for Junos arrival, i was reading a bit more about Jupiter to refresh my knowledge and reading about the hypothetical metallic H core got me thinking..is it likely that every planet has amounts of all the elements we have here on Earth? Will there be some Praseodymium on Mercury? Will there be some Tellurium on Saturn, or Neon on pluto etc...
I would imagine yes...but i would be nice to get a more knowledgeable answer
originally posted by: peppycat
wish could tell you for sure, happy Thursday. any how, I love this day that is ruled by Jupiter
originally posted by: 3danimator2014
Hi all,
Gearing up for Junos arrival, i was reading a bit more about Jupiter to refresh my knowledge and reading about the hypothetical metallic H core got me thinking..is it likely that every planet has amounts of all the elements we have here on Earth? Will there be some Praseodymium on Mercury? Will there be some Tellurium on Saturn, or Neon on pluto etc...
I would imagine yes...but i would be nice to get a more knowledgeable answer
Maybe I can study the elements and get back to you on this
Surely there are scientist here
Never heard of tellurium
Nice OP, thank you for posting
Will be following this... discussion of elements?
originally posted by: Indigent
Every planet is different, Some common elements will be present in all planets in different proportions hydrogen for example. Others element wont exist on any planet as they are too extreme and unstable.
originally posted by: Indigent
The composition of the planets depend on the star protoplanetary disk, so a planet of the same star will be some what similar, for example rocky planets here are similar (earth, mars) and we don't have a gold planet, carbon planet...
originally posted by: Indigent
Then although it is believed most heavy atoms are formed by supernovas there are local process that produce heavy atoms in the planets itself, so some planets may not have some elements at all.
originally posted by: Indigent
Different stars may have planets with the same elements as earth but with different ratios that produce very different results, so instead of forming in a rich silicon/oxygen environment like earth it can be formed on a rich carbon/oxygen one to produce a carbon planet
I'd be amazed if the planets didn't have the same spread and relative quantities of elements and daughter elements of radioactive decay
originally posted by: Indigent
a reply to: 3danimator2014
Im not talking about that, what im saying is for example element 118 wont exist naturally in any planet.
Several different protoplanetary disk have been observed, and its theorized that they can yield different types of planets like the possible observed but still not confirmed carbon planet PSR J1719-1438 b.
All the elements that exist since the planet formation is called primordial isotopes, these are the ones that comes from protoplanetary disk, that in theory comes from older supernovas and neutron star collisions, then there are non primordial isotopes that are constantly generated inside the planet, like radon, these are formed basically by radiation decay and there are factors than influence this like chemical environment, what happens naturally in a silicon oxide environment may not happen in a carbon oxide one, the radiation that emits the sun is not the same as a red dwarf, or a supernova, all this will affect.
In short, if a planet is formed in a environment that only has hydrogen, there wont be much else, if the mock up of the protoplanetary disk is not similar the planet will be different in the primordial isotopes, and even if the composition is the same there is no really certainty to say the radiation decay will be similar to produce similar amount of non primordial elements.
Think about it, just the change of having a magnetic field or not is the reason the moon has helium 3 and earth not, and helium 3 itself its there because the sun produce it, and constantly bombard the moon with it, not all stars have fusion of hydrogen but some has helium fusion and in these there wont be helium 3 to begin with.
originally posted by: Bedlam
a reply to: 3danimator2014
NVM
Made a mistake in comprehension. I thought you were talking about planetary formation around pop III stars, not the supernovae from them.
edit on 30-6-2016 by Jonjonj because: cos I was wrong
originally posted by: Jonjonj
I thought you were talking about planetary formation around pop III stars, not the supernovae from them.
A past resonance between Jupiter and Saturn may have played a dramatic role in early Solar System history. A 2004 computer model by Alessandro Morbidelli of the Observatoire de la Côte d'Azur in Nice suggested that the formation of a 1:2 resonance between Jupiter and Saturn (due to interactions with planetesimals that caused them to migrate inward and outward, respectively) created a gravitational push that propelled both Uranus and Neptune into higher orbits, and in some scenarios caused them to switch places, which would have doubled Neptune's distance from the Sun. The resultant expulsion of objects from the proto-Kuiper belt as Neptune moved outwards could explain the Late Heavy Bombardment 600 million years after the Solar System's formation and the origin of Jupiter's Trojan asteroids.[52] An outward migration of Neptune could also explain the current occupancy of some of its resonances (particularly the 2:5 resonance) within the Kuiper belt.
Venus
A runaway greenhouse effect involving carbon dioxide and water vapor may have occurred on Venus.[9] In this scenario, early Venus may have had a global ocean. As the brightness of the early Sun increased, the amount of water vapor in the atmosphere increased, increasing the temperature and consequently increasing the evaporation of the ocean, leading eventually to the situation in which the oceans boiled, and all of the water vapor entered the atmosphere. On Venus today there is little water vapor in the atmosphere. If water vapor did contribute to the warmth of Venus at one time, this water is thought to have escaped to space. Some evidence for this scenario comes from the extremely high deuterium to hydrogen ratio in Venus' atmosphere, roughly 150 times that of Earth, since light hydrogen would escape from the atmosphere more readily than its heavier isotope, deuterium.[10][11] Venus is sufficiently strongly heated by the Sun that water vapor can rise much higher in the atmosphere and be split into hydrogen and oxygen by ultraviolet light. The hydrogen can then escape from the atmosphere and the oxygen recombines.