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It may be possible that photons constantly change every step of the way on the trip to the Earth.
When the Earth is moving toward the sun, we get a compressed field at the balance point. Near this point does the photons gain energy and appear blue?
Quote from: jerrygg38It may be possible that photons constantly change every step of the way on the trip to the Earth. Yes, gravitational red shift (sometimes called Einstein Shift) results in photons being red-shifted as they "climb" out of the Sun's gravitational well.And blue-shifted as they "fall" into Earth's gravitational well.https://en.wikipedia.org/wiki/Gravitational_redshiftThis effect was originally demonstrated on Earth with photons climbing (or falling) just 22.5 meters in Earth's gravitational field, so it applies to every inch of the path from Earth to Sun (although, as you say, there is a gravitational balance point where the effect is very slight).https://en.wikipedia.org/wiki/Pound%E2%80%93Rebka_experiment