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ronald_hinh

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- TL;DR Summary
- I'm trying to understand what the time dilation looks like when moving through space and then approaching a planet's gravity field.

I'm trying to understand what the time dilation looks like when moving through space and then approaching a planet's gravity field. So I have the broad understanding that if you are moving near the speed of light in a spaceship, your clock ticks normal but the clocks on other stationary objects that you observe in space appear to tick faster. As you get closer to a planet, the gravitational forces also slow down time. If you continue to move through the gravity of the planet at the same speed as you were before, then from an outside observer's reference, your clock will be even

So for example, object A is you moving in the spaceship moving at some velocity. Object B is some planet like Mars. Object C is a planet caught in the pull of a black hole (like in Interstellar).

Lets say we set a marker for the time for all 3 objects to start at 9:00AM from the frame of reference of Object A:

Object A's (ship) clock initially: 9:00 AM

Object B's (Mars) clock initially: 9:00 AM

Object C's (blackhole planet) clock initially: 9:00 AM

How would each clock look assuming Object A remains near the speed of light and if 1 minute passes?

Object A after 1 minute: 9:01 AM

Object B after 1 minute: 9:08 AM (from Object A's frame of reference)

Object C after 1 minute: ? (would this be greater than 8 minutes or less than 1 minute?)

And then how will this change if the ship is

I can't wrap my head around this. Also if anyone has any good article references that would help me understand that would be great.

Thanks

*slower*than before. This is correct? If the ship has velocity inside the gravity of the planet, from an outside observer, the ship's clock will still ticker slower than the planet's.So for example, object A is you moving in the spaceship moving at some velocity. Object B is some planet like Mars. Object C is a planet caught in the pull of a black hole (like in Interstellar).

Lets say we set a marker for the time for all 3 objects to start at 9:00AM from the frame of reference of Object A:

Object A's (ship) clock initially: 9:00 AM

Object B's (Mars) clock initially: 9:00 AM

Object C's (blackhole planet) clock initially: 9:00 AM

How would each clock look assuming Object A remains near the speed of light and if 1 minute passes?

**These are just arbitrary time scales but I just really need to understand if something is faster or slower from the ship's frame of reference:**Object A after 1 minute: 9:01 AM

Object B after 1 minute: 9:08 AM (from Object A's frame of reference)

Object C after 1 minute: ? (would this be greater than 8 minutes or less than 1 minute?)

And then how will this change if the ship is

*inside*the gravity field of either B or C to make a notable difference?I can't wrap my head around this. Also if anyone has any good article references that would help me understand that would be great.

Thanks