by Chris Peterson » Thu Oct 19, 2023 1:59 pm
Ann wrote: ↑Thu Oct 19, 2023 1:49 pm
Chris Peterson wrote: ↑Thu Oct 19, 2023 1:33 pm
APOD Robot wrote: ↑Thu Oct 19, 2023 4:07 am
Of course on that date the New Moon caught up with the Sun in the canyon's morning skies.
More like the Sun caught up with the new Moon.
So you mean it is in the picture? Where?
Ann
The Moon rose first... just over a degree ahead of the Sun. Far too lost in the bright sky to be seen in this image. The new Moon only becomes visible once it starts occulting the Sun, which occurs because it is moving slower across the sky and the Sun "catches up" with it. Of course, the
actual new Moon is what we see when the Moon sits directly in front of the Sun. On either side of that it's actually a waning then waxing crescent.
I assume what we're seeing on the horizon is the sunrise itself, captured in a frame taken about two hours before the eclipse sequence begins.
[quote=Ann post_id=334493 time=1697723362 user_id=129702]
[quote="Chris Peterson" post_id=334492 time=1697722388 user_id=117706]
[quote="APOD Robot" post_id=334480 time=1697688423 user_id=128559]
Of course on that date the New Moon caught up with the Sun in the canyon's morning skies.
[/quote]
More like the Sun caught up with the new Moon.
[/quote]
So you mean it is in the picture? Where?
Ann
[/quote]
The Moon rose first... just over a degree ahead of the Sun. Far too lost in the bright sky to be seen in this image. The new Moon only becomes visible once it starts occulting the Sun, which occurs because it is moving slower across the sky and the Sun "catches up" with it. Of course, the [i]actual [/i]new Moon is what we see when the Moon sits directly in front of the Sun. On either side of that it's actually a waning then waxing crescent.
I assume what we're seeing on the horizon is the sunrise itself, captured in a frame taken about two hours before the eclipse sequence begins.