All Questions
Tagged with gas-giants terrestrial-planets
8
questions
3
votes
1
answer
297
views
Why don't we detect planets around OB stars and no terrestrial planets around A or early F stars?
Looking at an exoplanet database, I noticed that there are very few planets detected around main-sequence OBA stars, and most of them are gas giants/brown dwarfs. Why can't we detect low-mass planets ...
- 6,684
5
votes
1
answer
258
views
Are there other planetary systems where gas giants are on the inside to rocky planet orbits?
I understand that formation theories for gas giants suggest they should be born further away where there is more gas for them to monopolize vs the sun, and then to form Hot Jupiters they need to ...
- 345
0
votes
1
answer
628
views
What is the gaseous-to-rocky ratio of exoplanets?
Around the Sun, there are as many gaseous planets (Jupiter, Saturn, Uranus and Neptune) as there are rocky planets (Mercury, Venus, Earth and Mars).
Do other stars have similar gaseous-to-rocky ...
- 17.6k
7
votes
1
answer
3k
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Is there a clear-cut difference between rocky and gaseous planets?
A gas giant planet is large enough that it retains a lot of hydrogen and helium. A rocky planet is one with a solid surface. That's the rule of thumb to distinguish between the rocky and gaseous ...
- 17.6k
5
votes
1
answer
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How can we tell the age of a rogue planet?
Is it possible to find out how old is a planet, especially a rogue planet? I know that people measured the radioactive decays to determine Earth's age with some amazing accuracy, but what about ...
- 2,501
12
votes
3
answers
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Why don't we have in-between planets?
The planets in our system are most often grouped into two categories:
Terrestrial:
Mercury
Venus
Earth
Mars
Gas Giants:
Jupiter
Saturn
Uranus
Neptune
Why is it that we don't see "in-between" ...
- 283
1
vote
1
answer
3k
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Do the terrestrial planets form later than gas giants in our solar system?
Sorry I forgot where this statements come from, but I also remember the reason behind it is due to young Jupiter moves inwards and destroys the original super earth in inner solar system, and the ...
- 2,229
3
votes
1
answer
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Types of Exoplanets
We discover vastly more exoplanets that are gas giants that orbit their parent star very closely, than small terrestrial planets that are more distant to their sun. Could this be due to the methods we ...
- 423