Over what range of distances from the sun would you expect to find?

Over what range of distances from the sun would you expect to find light gases, like hydrogen and helium, collecting together to form a significant portion of a planet?

A. anywhere beyond the orbit of Mercury

B. closer than the orbit of Jupiter

C. anywhere beyond the orbit of Jupiter

D. between the orbit of Uranus and Neptune

Please Help!

3 Answers

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  • John W
    Lv 7
    8 years ago
    Favorite Answer

    It used to be believed that gas giants could only form as far out as Jupiter, that any planets closer would have their atmosphere's blown away leaving a rocky core with a heavier atmosphere but exoplanets have suggest that isn't the case as there are large gas giants very close to their stars and titan also belies that as it has a nitrogen atmosphere instead of a hydrogen atmosphere. In about a decade, the New Horizon probe to Pluto will be able to examine Pluto's atmosphere which only exists during part of it's orbit. So right now, we don't really know where to expect gas giants to form. Note that the exoplanets found were in orbit around red dwarf stars which are very long lasting slow burning stars that do not produce a lot of solar wind which may be why gas giants could be so much closer.

    Also Uranus and Neptune are similar to each other but very different from Jupiter and Saturn. Both Jupiter and Saturn are hydrogen gas giants with ammonia clouds. Uranus and Neptune are water and ammonia ice planets with hydrogen atmospheres and methane clouds. Uranus and Neptune are more correctly called ice giants as their mantles are a form of pressurized ice ranging in temperature from 300 kelvin to 6,000 kelvin ( certainly not cold ice ), the ice is held together by pressure. Due to the pressures involved, there doe not appear to be a transition from hydrogen gas to water to water ice so it's not like it's an ocean or ice ball.

    The answer to your sad attempt at doing homework would probably be B because Jupiter exists and is a gas giant therefore the range must at least be as far in as Jupiter but your school material is dated.

  • Josh
    Lv 6
    8 years ago

    Current data suggest that huge gas giant exoplanets are far closer that mercury example ... almost all the exoplanets found to date are gas giants with orbits in the range from a 7day orbit all the way to 100 day orbits.

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    So you need to get your teacher up to date about astronomy cause it sounds like your book or question is from 5 years back.

    .

    All them answers are wrong.

    Source(s): Just look at all the current exoplanets orbital period and you'll see.
  • 8 years ago

    E. There are no such gaseous regions in the solar system of our sun.

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