Earth Reaches Sun's Chromosphere: Timing Estimate

  • Thread starter Thread starter blarznik
  • Start date Start date
  • Tags Tags
    Earth Estimate
AI Thread Summary
If Earth were to suddenly stop in its orbit and fall toward the Sun's chromosphere, it would take approximately 63 to 66 days to reach it, depending on its starting point in the orbit. During this time, Earth would average a speed of about 1.4 million miles per day, accelerating to 618 km/sec (33 million miles per day) at impact. The initial speed would be slower, increasing significantly as it neared the Sun. The discussion highlights Earth's current orbital velocity of 1.6 million miles per day and the solar system's movement around the galaxy at 220 km/sec. Overall, the acceleration and speed involved in such a scenario are significant and noteworthy.
blarznik
Messages
18
Reaction score
0
Roughly how long would it take, ending the time when Earth touches the Sun's Chromosphere layer. (Ignoring interfering with other planets' gravities as it moves toward the Sun, if that situation exists.)
 
Last edited:
Astronomy news on Phys.org


If you mean if the Earth was to suddenly stop in its orbit, then then between ~63-66 days, depending upon what point in it orbit it was when it started the fall.
 


Janus said:
If you mean if the Earth was to suddenly stop in its orbit, then then between ~63-66 days, depending upon what point in it orbit it was when it started the fall.

Wow that's fast! So with 66 days of motion, using the AU as the distance, Earth's moving at about 1.4 million miles per day.
 


blarznik said:
Wow that's fast! So with 66 days of motion, using the AU as the distance, Earth's moving at about 1.4 million miles per day.

That's the average over the entire fall. It would actually move much less during the first day and be moving a lot faster on the last day. At impact, it would be moving at 618 km/sec ( the equivalent of 33 million miles per day)

This shouldn't be too surprising, as the Earth, at its present orbital velocity, travels 1.6 million miles per day.
 


Janus said:
That's the average over the entire fall. It would actually move much less during the first day and be moving a lot faster on the last day. At impact, it would be moving at 618 km/sec ( the equivalent of 33 million miles per day)

This shouldn't be too surprising, as the Earth, at its present orbital velocity, travels 1.6 million miles per day.

I guess the acceleration time would be drastic. Also, looking at Earth's orbit, I never realized the present velocity was that fast, but that makes a lot of sense for how far it travels in a year.
 


blarznik said:
I guess the acceleration time would be drastic. Also, looking at Earth's orbit, I never realized the present velocity was that fast, but that makes a lot of sense for how far it travels in a year.

The solar system travels around the galaxy at a speed of 220 kilometers per second! That's 19 million km per day!
 

Thread 'How feasible is home radio astronomy?'

Is a homemade radio telescope realistic? There seems to be a confluence of multiple technologies that makes the situation better than when I was a wee lad: software-defined radio (SDR), the easy availability of satellite dishes, surveillance drives, and fast CPUs. Let's take a step back - it is trivial to see the sun in radio. An old analog TV, a set of "rabbit ears" antenna, and you're good to go. Point the antenna at the sun (i.e. the ears are perpendicular to it) and there is...
View full post »

Thread 'Our Beautiful Universe - Photos and Videos'

This thread is dedicated to the beauty and awesomeness of our Universe. If you feel like it, please share video clips and photos (or nice animations) of space and objects in space in this thread. Your posts, clips and photos may by all means include scientific information; that does not make it less beautiful to me (n.b. the posts must of course comply with the PF guidelines, i.e. regarding science, only mainstream science is allowed, fringe/pseudoscience is not allowed). n.b. I start this...
View full post »

Thread 'Visible light Over Large Distances'

How does light maintain enough energy in the visible part of the spectrum for the naked eye to see in the night sky. Also, how did it start of in the visible frequency part of the spectrum. Was it, for example, photons being ejected at that frequency after high energy particle interaction. Or does the light become visible (spectrum) after hitting our atmosphere or space dust or something? EDIT: Actually I just thought. Maybe the EM starts off as very high energy (outside the visible...
View full post »

Similar threads

B Does Time Pass at Different Rates on Other Planets?
Replies
19
Views
436
B What If We Could See the Past by Placing a Mirror on the Sun?
Replies
13
Views
2K
B Sun-Earth Encounter: Acceleration, Roche Limit, Rotation & More
Replies
15
Views
2K
I How Big of an Object Orbiting Closer to the Sun Than Earth Could Be Overlooked?
Replies
17
Views
4K
B When Would Planets Go Dark if the Sun Went Out?
Replies
2
Views
2K
I New Developments In The Search For Planet X
Replies
2
Views
3K
I Could life on Earth survive the far future?
Replies
16
Views
3K
I The solar system and the Coriolis effect
Replies
4
Views
3K
What Is the Most Relevant Contribution to Earth's Orbit After the Sun?
Replies
2
Views
2K
How Can Planetary Movements Affect Time and Illumination on an Inhabited Planet?
Replies
45
Views
6K

Hot Threads

Recent Insights

Back
Top