The lower part of the Belt of Venus- the blue- is literally the atmosphere that is in Earth's shadow. From that height, the Sun has set. The upper pink part is still in sunlight. From that height, you would look back at a setting Sun still above the horizon.Chris, I don't understand to which shadow you are referring? A cloud may be "just into shadow" means in the shadow of the earth?Or if they're just into shadow, they may still pick up the red light reflected from clouds even further west. Or they may be in shadow, in which case they are likely to look blue (which some people see as purple) because they are reflecting blue sky.
Then you raise a second possibility: "Or they may be in shadow" -- and now you are referring to a different type of shadow? Or it is a a temporal factor to which you are referring -- "just into shadow" ("just" meaning at that moment) as opposed to "in shadow" for a longer duration?
Statistics: Posted by Chris Peterson — Wed Apr 10, 2024 10:14 pm — Replies 20 — Views 488