Astronomy Problems PLEASE HELP PLEASE PLEASE

  • Thread starter kamurra2
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    Astronomy
In summary,The densities of the planets in the system are found to be inversely proportional to their radius. This suggests that the planets in the system may have rockier compositions than watery ones. Additionally, the planets have surface gravities that are in proportion to their mass. This would lead to the conclusion that a person on Tatooine would weigh around 328 pounds, Hoth would weigh around 9500 pounds, and Yavin IV would weigh around 19000 pounds.
  • #1
kamurra2
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okay so i was given this graph and questions and have no clue where to start! any help or tips would be great! thanks! if you can't really see the graph i have attached the actual paper with the graph so u can see it!

Planet M (kg) R (km) a A (AU) MStar (kg) SStar P0(bar) T0(K)
Coruscant 6 x 10'25 17400 0.1 0.44 5 x 1029 1600 1.9 295
Dagobah 1.2 x 10'24 3500 0.05 3.3 6 x 1031 1100 1.1 315
Hoth 3.5 x 10'24 9500 0.8 4.6 2 x 1030 900 0.6 168
Tatooine 6 x 10'23 2400 0.1 0.75 5 x 1030 2900 0.5 328
Yavin IV 8 x 10'25 19000 0.3 0.01 6 x 1028 1700 0.85 290

. The columns are M for mass of the planet, R for radius of the planet, a for albedo of the planet, A for distance of the planet from the parent star, MStar for mass of the parent star, SStar for Solar Flux of the star at the planet (in W/m2), P0 for pressure at the planet’s surface, and T0 for average temperature at the planet’s surface. Tatooine is technically a double-star system, but we can consider the planet to orbit around the center of mass of the two stars.

What are the densities of these planets?



What do these imply about these planets compositions?




What are their surface gravities?


How much would you weigh on these planets?




What are the periods of these planets around their parent star (or gas giant, in the case of Yavin IV) in Earth years?




With the pressure and temperature shown, determine if the planet could have abundant liquid water.




Determine if the planet has a greenhouse effect. What should the temperature of the planet be without the Greenhouse effect? What might this imply about the composition of the planetary atmospheres?
 

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  • #2
Would you like to make an attempt at some of the questions?
 
  • #3
i just don't know the formulas or else i would... that's what i need help on mostly
 
  • #4
What are the densities of these planets?
I'm sure you can find the formula for the volume of a sphere.
Then density is just mass/volume

What do these imply about these planets compositions?
Are rocks denser than water? Is gas less dense than water?

What are their surface gravities?
You are looking for an equation for gravitational force on a mass, at a distance = radius of the planet.

How much would you weigh on these planets?
Once you have found 'g' in the above question then weight is just = m g
 

1. What are common problems that arise in astronomy research?

Some common problems in astronomy research include difficulties in obtaining accurate measurements due to atmospheric conditions, funding constraints, and the limited abilities of telescopes and other instruments.

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3. What are some current challenges in the field of astronomy?

Some current challenges in astronomy include the search for dark matter and dark energy, understanding the formation and evolution of galaxies, and studying the properties of exoplanets.

4. How does astronomy research contribute to our understanding of the universe?

Astronomy research helps us to better understand the origins and evolution of the universe, the properties of celestial objects, and the laws of physics that govern our universe.

5. What are some future developments in the field of astronomy?

Some future developments in astronomy may include advancements in space telescopes and other instruments, improved data analysis techniques, and potential breakthroughs in our understanding of dark matter and dark energy.

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