Erik te Groen
New member
- Joined
- Dec 12, 2020
- Messages
- 5
Hello everyone,
I am new here. I just registered.
This is my first post.
I actually have only one question.
Recently I was watching a documentary about the Apollo Lunar program. The astronauts were filming the Earth and the Moon, while on route.
Then a question suddenly popped up... At which point, between the Earth and the Moon, will both bodies have the same angular size ?
I started making some calculations and came up with an answer (see my drawing).
I also made this drawing to have a better visualization. To my surprise, I ended up with two quite different answers. There is quite a large
discrepancy between the two answers.
The drawing - to scale - showed me the exact angle and the point where both bodies have the same angular size.
Therefor I think I made a mistake in my calculations.
But...where, how, what and why? I can't find the mistake.
So... Please help.
Cheers,
Erik.
I am new here. I just registered.
This is my first post.
I actually have only one question.
Recently I was watching a documentary about the Apollo Lunar program. The astronauts were filming the Earth and the Moon, while on route.
Then a question suddenly popped up... At which point, between the Earth and the Moon, will both bodies have the same angular size ?
I started making some calculations and came up with an answer (see my drawing).
I also made this drawing to have a better visualization. To my surprise, I ended up with two quite different answers. There is quite a large
discrepancy between the two answers.
The drawing - to scale - showed me the exact angle and the point where both bodies have the same angular size.
Therefor I think I made a mistake in my calculations.
But...where, how, what and why? I can't find the mistake.
So... Please help.
Cheers,
Erik.