Earth's travels/earliest recorded star constitution

[Cheese on Toast with Worcestershire Sauce]

I asked chatgpt to calculate the distance earth has travelled since the earliest recorded star constellations (3000 BCE). It gave me this:

1. Earth’s Orbit Around the Sun:

Distance per year: 584 million miles.

Years from 3000 BCE to 2025 CE: 5025 years.

Total distance:
5025 years × 584 million miles = 2.93 trillion miles.



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2. The Sun’s Motion Through the Galaxy:

Speed of the Sun: 514,000 mph.

Distance per year:
514,000 mph × 8,766 hours = 4.51 billion miles per year.

Total distance over 5025 years:
5025 years × 4.51 billion miles = 22.7 trillion miles.



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3. The Milky Way’s Motion:

Speed of the Milky Way: 1.3 million mph.

Distance per year:
1.3 million mph × 8,766 hours = 11.4 billion miles per year.

Total distance over 5025 years:
5025 years × 11.4 billion miles = 57.3 trillion miles.



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Total Distance Traveled by Earth:

2.93 trillion miles (Earth’s orbit) + 22.7 trillion miles (Sun’s motion) + 57.3 trillion miles (Milky Way’s motion) = 89.9 trillion miles.

[Chatgpt end]

89.9 trillion miles travelled and we are still able to see the same star constellations in the sky. Incredible.

[mickythefish]

numbers involved are tiny, that's the reason.

[thegreenhell]

How have they calculated the speed of the Milky Way? It has to be relative to a fixed point, but what?

[mickythefish]

the great attractor?

[eharding]

Cheese on Toast with Worcestershire Sauce said:

89.9 trillion miles travelled and we are still able to see the same star constellations in the sky. Incredible.

If you plug in -3000BC to Stellarium, for example, the calculation of star positions based on the observed proper motion in the star catalogues underlying the application will show changes possibly appreciable to the (above average) naked eye - for example, in 3000BC Sirius was pretty much aligned with the extended line of the three stars in Orion's belt, but today appreciably away from that line.