A Plane not A Planet
If the moon is 238,000 miles away , how big is the smallest crater we can see with the naked eye ? And should we be able to see it , if the distance of 238,000 miles is correct ? I suspect not .
At about the 3:50 mark in the daylight moon video, they suggest that if the sky was red, that would also be the colors of the craters. This is actually the right answer, yet they failed to stop and consider why.
The moon at night is seen in/through a black sky, and the moon above is seen in/through a blue sky. The lighter portions of the moon are reflecting the sunlight, but the darker craters aren’t.
With no light coming from the craters, what you then see is the color of the sky you are looking through. The lighter portion is also shaded a bit during the day due to the blue sky we are viewing it thru. At night, there is no shading, just the bright white reflection.
As for the bottom left portion of the moon not lit be the sun; just follow the camera direction between the sun and moon as they move it side-to-side. The part of the moon farthest from the sun is the bottom left portion. Since we can’t easily calculate the angles involved, we don’t easily know how to determine the light/dark proportions. Nonetheless, we can trust our eyes to see the shading, and understand how the positions can produce the effect.
I took still pictures of the August 21, 2017 eclipse in Grand Island Nebraska with a Nikkor 500mm lens. Three frames captured the Sun emerging from the backside of the Moon. Why do theses images depict the Sun in FRONT of the Moon? Link https://vimeo.com/231301704
when taking pictures of such a bright object, there can be side-effects that are false images of reality. I don’t know if this is flare or glare or something else, but with the sun so bright, you need special filters, exposure controls, or something to avoid the flase images you ended up with.
With my cheap phone, and about 85% totality in the upper mid-west, i darkened the exposure as much as I could, and the sun looked like a circle. Looking thru eclipse glasses just 2 minutes later, and I could only see a small portion of the sun (crescent shaped).
Nice totality shot, BTW!!
Fill in your details below or click an icon to log in:
You are commenting using your WordPress.com account. ( Log Out / Change )
You are commenting using your Twitter account. ( Log Out / Change )
You are commenting using your Facebook account. ( Log Out / Change )
You are commenting using your Google+ account. ( Log Out / Change )
Connecting to %s
Notify me of new comments via email.
receive notifications of new posts by email.
Join 700 other followers