Shift in Mercury's Perihelion by finite light speed

Click For Summary
SUMMARY

The discussion centers on the relativistic shift in Mercury's perihelion, highlighting two distinct computational approaches. One method, attributed to a female researcher, estimates the shift based on the time it takes for light to travel from the Sun to Mercury, yielding results within 5-10% accuracy of full General Relativity calculations. Another approach calculates the acceleration difference due to General Relativity effects, resulting in a perihelion shift of 36.7 arcseconds. The conversation also touches on the inconsistencies between Nordstrom and Einstein's theories of gravity regarding the direction of the perihelion shift.

PREREQUISITES
  • Understanding of General Relativity principles
  • Familiarity with classical mechanics and orbital dynamics
  • Knowledge of light speed and its implications in relativistic physics
  • Basic grasp of perihelion shifts in celestial mechanics
NEXT STEPS
  • Research the calculation methods for relativistic effects on planetary orbits
  • Study the differences between Nordstrom and Einstein's theories of gravity
  • Explore the implications of light speed on gravitational calculations
  • Review the provided resources, including the AAPT talk and the arXiv paper on General Relativity
USEFUL FOR

Physicists, astronomy students, and anyone interested in the nuances of General Relativity and its applications to celestial mechanics, particularly regarding Mercury's orbit.

TeddySciGuy
Messages
1
Reaction score
0
Someone published a simple computation of the relativistic shift in Mercury's perihelion (over and above classical, ie. the small correction over the classical-mechanical shift) by more or less using
the principle of relativity. I believe it was a she and she computed how far mercury travels in the time it takes for a photon to reach Mercury from the Sun. I'm not sure what value she got but it was probably very close - like within 5 or 10% of a full General-relativistic or Goldstein-mechanics book approach. Another guy did it by calculating the difference in the acceleration of Mercury due to GR effects and proceeding from there. He gets like 36.7 arcseconds.
Just wondering, does anyone know where that calculation by the woman is? I like their off-the-cuff estimates as there is some good physics in those approaches. I just lost the article - I will eventually find it so no big worry.

Thank you.
 
Physics news on Phys.org
Last edited:

Similar threads

  • · Replies 5 ·
Replies
5
Views
5K
  • · Replies 10 ·
Replies
10
Views
2K
  • · Replies 50 ·
2
Replies
50
Views
6K
  • · Replies 28 ·
Replies
28
Views
3K
  • · Replies 15 ·
Replies
15
Views
3K
  • · Replies 9 ·
Replies
9
Views
5K
  • · Replies 4 ·
Replies
4
Views
3K
Replies
4
Views
3K
  • · Replies 34 ·
2
Replies
34
Views
7K
  • · Replies 21 ·
Replies
21
Views
3K