APOD: A Sunrise at Sunset Point (2023 Oct 19)

Comments and questions about the APOD on the main view screen.
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APOD Robot
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APOD: A Sunrise at Sunset Point (2023 Oct 19)

Post by APOD Robot » Thu Oct 19, 2023 4:07 am

Image A Sunrise at Sunset Point

Explanation: This timelapse series captured on October 14 is set against the sunrise view from Sunset Point, Bryce Canyon, planet Earth. Of course on that date the New Moon caught up with the Sun in the canyon's morning skies. Local temperatures fell as the Moon's shadow swept across the high altitude scene and the brilliant morning sunlight became a more subdued yellow hue cast over the reddish rocky landscape. In the timelapse series, images were taken at 2 minute intervals. The camera and solar filter were fixed to a tripod to follow the phases of the annular solar eclipse.

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Ann
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Re: APOD: A Sunrise at Sunset Point (2023 Oct 19)

Post by Ann » Thu Oct 19, 2023 4:33 am

Very very beautiful image! Exquisitely fine details, extremely rich colors.


But where is the new moon? Surely it can't be that brilliant light at the horizon?

Ann
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Re: APOD: A Sunrise at Sunset Point (2023 Oct 19)

Post by markmiller » Thu Oct 19, 2023 4:49 am

Excellent post! This is a fantastic blog that I will definitely return to throughout the year driving directions

Cétoine Dorée

Re: APOD: A Sunrise at Sunset Point (2023 Oct 19)

Post by Cétoine Dorée » Thu Oct 19, 2023 8:45 am

2 minute intervals ? Sun images do not overlap, isn't it rather 3 or 4 minutes ? Maybe I'm wrong. Very nice picture by the way !

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Re: APOD: A Sunrise at Sunset Point (2023 Oct 19)

Post by bls0326 » Thu Oct 19, 2023 12:56 pm

Great picture of the eclipse and Bryce Canyon! I found three groups of other eclipse watchers in the full-size photo. Could be more.

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Re: APOD: A Sunrise at Sunset Point (2023 Oct 19)

Post by Chris Peterson » 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.
Chris

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Ann
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Re: APOD: A Sunrise at Sunset Point (2023 Oct 19)

Post by Ann » 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?

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Re: APOD: A Sunrise at Sunset Point (2023 Oct 19)

Post 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.
Chris

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Re: APOD: A Sunrise at Sunset Point (2023 Oct 19)

Post by johnnydeep » Thu Oct 19, 2023 2:26 pm

Cétoine Dorée wrote: Thu Oct 19, 2023 8:45 am 2 minute intervals ? Sun images do not overlap, isn't it rather 3 or 4 minutes ? Maybe I'm wrong. Very nice picture by the way !
I think I agree. Both the Sun and Moon are about 0.5 degrees wide, and the Sun moves about two widths per photo, which means it's moving 1 degree per photo. The Sun takes 24 hours to travel the full 360 degrees in the sky, so 24*60 = 1440 minutes / 360 degrees = 4 minutes per photo.

So, are we both right or both wrong?
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Re: APOD: A Sunrise at Sunset Point (2023 Oct 19)

Post by Ann » Thu Oct 19, 2023 2:30 pm

Chris Peterson wrote: 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

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.
Uh... yeah... that's where it is... :derp: :doh: :facepalm:

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Re: APOD: A Sunrise at Sunset Point (2023 Oct 19)

Post by Chris Peterson » Thu Oct 19, 2023 2:52 pm

johnnydeep wrote: Thu Oct 19, 2023 2:26 pm
Cétoine Dorée wrote: Thu Oct 19, 2023 8:45 am 2 minute intervals ? Sun images do not overlap, isn't it rather 3 or 4 minutes ? Maybe I'm wrong. Very nice picture by the way !
I think I agree. Both the Sun and Moon are about 0.5 degrees wide, and the Sun moves about two widths per photo, which means it's moving 1 degree per photo. The Sun takes 24 hours to travel the full 360 degrees in the sky, so 24*60 = 1440 minutes / 360 degrees = 4 minutes per photo.

So, are we both right or both wrong?
Another way of looking at it. The eclipse spanned 3 hours, and is segmented into 44 parts here. 180m / 44 = 4m.
Chris

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Re: APOD: A Sunrise at Sunset Point (2023 Oct 19)

Post by johnnydeep » Thu Oct 19, 2023 3:00 pm

Chris Peterson wrote: Thu Oct 19, 2023 2:52 pm
johnnydeep wrote: Thu Oct 19, 2023 2:26 pm
Cétoine Dorée wrote: Thu Oct 19, 2023 8:45 am 2 minute intervals ? Sun images do not overlap, isn't it rather 3 or 4 minutes ? Maybe I'm wrong. Very nice picture by the way !
I think I agree. Both the Sun and Moon are about 0.5 degrees wide, and the Sun moves about two widths per photo, which means it's moving 1 degree per photo. The Sun takes 24 hours to travel the full 360 degrees in the sky, so 24*60 = 1440 minutes / 360 degrees = 4 minutes per photo.

So, are we both right or both wrong?
Another way of looking at it. The eclipse spanned 3 hours, and is segmented into 44 parts here. 180m / 44 = 4m.
Nice! Which means the photographer is mistaken on his Instagram post about the photo.
--
"To B̬̻̋̚o̞̮̚̚l̘̲̀᷾d̫͓᷅ͩḷ̯᷁ͮȳ͙᷊͠ Go......Beyond The F͇̤i̙̖e̤̟l̡͓d͈̹s̙͚ We Know."{ʲₒʰₙNYᵈₑᵉₚ}

Tekija

Re: APOD: A Sunrise at Sunset Point (2023 Oct 19)

Post by Tekija » Thu Oct 19, 2023 4:27 pm

johnnydeep wrote: Thu Oct 19, 2023 3:00 pm
Chris Peterson wrote: Thu Oct 19, 2023 2:52 pm
johnnydeep wrote: Thu Oct 19, 2023 2:26 pm

I think I agree. Both the Sun and Moon are about 0.5 degrees wide, and the Sun moves about two widths per photo, which means it's moving 1 degree per photo. The Sun takes 24 hours to travel the full 360 degrees in the sky, so 24*60 = 1440 minutes / 360 degrees = 4 minutes per photo.

So, are we both right or both wrong?
Another way of looking at it. The eclipse spanned 3 hours, and is segmented into 44 parts here. 180m / 44 = 4m.
Nice! Which means the photographer is mistaken on his Instagram post about the photo.
Nah, results from just having fun!

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Re: APOD: A Sunrise at Sunset Point (2023 Oct 19)

Post by johnnydeep » Thu Oct 19, 2023 6:12 pm

Tekija wrote: Thu Oct 19, 2023 4:27 pm
johnnydeep wrote: Thu Oct 19, 2023 3:00 pm
Chris Peterson wrote: Thu Oct 19, 2023 2:52 pm

Another way of looking at it. The eclipse spanned 3 hours, and is segmented into 44 parts here. 180m / 44 = 4m.
Nice! Which means the photographer is mistaken on his Instagram post about the photo.
Nah, results from just having fun!

https://dictionary.cambridge.org/dictio ... time-flies
"Time flies like an arrow. Fruit flies like a banana." - not Groucho Marx
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"To B̬̻̋̚o̞̮̚̚l̘̲̀᷾d̫͓᷅ͩḷ̯᷁ͮȳ͙᷊͠ Go......Beyond The F͇̤i̙̖e̤̟l̡͓d͈̹s̙͚ We Know."{ʲₒʰₙNYᵈₑᵉₚ}

The Har Fella

Re: APOD: A Sunrise at Sunset Point (2023 Oct 19)

Post by The Har Fella » Thu Oct 19, 2023 8:38 pm

Can anyone tell me why there seems to be a white-ish glow in the sky behind the tree?

Harry

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Re: APOD: A Sunrise at Sunset Point (2023 Oct 19)

Post by Chris Peterson » Thu Oct 19, 2023 10:03 pm

The Har Fella wrote: Thu Oct 19, 2023 8:38 pm Can anyone tell me why there seems to be a white-ish glow in the sky behind the tree?

Harry
A processing artifact. Some tool similar to Photoshop's "clarity" setting was used to enhance the sky, and it avoided the edges created by the tree.
Chris

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The Har Fella

Re: APOD: A Sunrise at Sunset Point (2023 Oct 19)

Post by The Har Fella » Thu Oct 19, 2023 11:17 pm

Well that explains it!
Thanks Chris

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Re: APOD: A Sunrise at Sunset Point (2023 Oct 19)

Post by orin stepanek » Thu Oct 19, 2023 11:17 pm

AnnularMontagev21024.jpg
Specular view of annular eclipse at Sunset Point!
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