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Astronomy Picture of the Day - Equinox Sunset
NASA ^ | 21 Sep, 2025 | Image Credit: Luca Vanzella

Posted on 09/21/2025 11:29:26 AM PDT by MtnClimber

Explanation: Does the Sun set in the same direction every day? No, the direction of sunset depends on the time of the year. Although the Sun always sets approximately toward the west, on an equinox like tomorrow the Sun sets directly toward the west. After tomorrow's September equinox, the Sun will set increasingly toward the southwest, reaching its maximum displacement at the December solstice. Before tomorrow's September equinox, the Sun had set toward the northwest, reaching its maximum displacement at the June solstice. The featured time-lapse image shows seven bands of the Sun setting one day each month from 2019 December through 2020 June. These image sequences were taken from Alberta, Canada -- well north of the Earth's equator -- and feature the city of Edmonton in the foreground. The middle band shows the Sun setting during an equinox -- in March. From this location, the Sun will set along this same equinox band again tomorrow.


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; nasa
To be added or removed from the Astronomy Picture of the Day ping list please send me a request via "Private Reply" (Mail).

For more detail go to the link and click on the image for a high definition image. You can then move the magnifying glass cursor then click to zoom in and click again to zoom out. When zoomed in you can scan by moving the side bars on the bottom and right side of the image.

1 posted on 09/21/2025 11:29:26 AM PDT by MtnClimber
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To: MtnClimber

2 posted on 09/21/2025 11:29:58 AM PDT by MtnClimber (For photos of scenery, wildlife and climbing, click on my screen name for my FR home page.)
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To: 21stCenturion; 21twelve; 4everontheRight; A Navy Vet; A_perfect_lady; abb; AFB-XYZ; AFPhys; ...
Pinging the APOD list

πŸͺ 🌟 🌌 πŸ”

3 posted on 09/21/2025 11:31:02 AM PDT by MtnClimber (For photos of scenery, wildlife and climbing, click on my screen name for my FR home page.)
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To: MtnClimber

Wow.


4 posted on 09/21/2025 11:46:08 AM PDT by No name given ( Anonymous is who you’ll know me as )
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To: MtnClimber

Edmonton city planners are clearly not stargazers.

In 10k years they’ll unearth the city and conclude ancient civilizations were far more advanced than 21st century peoples of that land.

/s

(and wait’ll they find the waste landfills)


5 posted on 09/21/2025 11:46:43 AM PDT by logi_cal869 (-cynicus the "concern troll" a/o 10/03/2018 "/!i!! &@$%&*(@ -')
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To: MtnClimber

This true only if you are on the equator. North of the equator it will be to some extant towards the south.


6 posted on 09/21/2025 12:37:07 PM PDT by jimfr
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To: MtnClimber

Where is there only one string of lights reflected in the water?


7 posted on 09/21/2025 1:39:25 PM PDT by yesthatjallen
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To: MtnClimber

Nice.


8 posted on 09/21/2025 1:47:41 PM PDT by telescope115 (Ad Astra, Ad Deum…)
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To: yesthatjallen
β€œ Where is there only one string of lights reflected in the water?β€œ

Expand the picture. Reflection is from water, balance of surface is ice.

9 posted on 09/21/2025 2:31:07 PM PDT by Jumpmaster (U.S. Army Paratrooper. I am the 0.001%.)
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To: MtnClimber
Instead of celestial arcs, I first thought of spaghetti noodles strung across the sky like power lines, each one carrying a convoy of meatballs in perfect orbit.

Oh wait... I had spaghetti for dinner...

10 posted on 09/21/2025 6:45:37 PM PDT by Deaf and Discerning
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To: MtnClimber

11 posted on 09/22/2025 5:36:12 AM PDT by Red Badger (Homeless veterans camp in the streets while illegals are put up in 5 Star hotels....................)
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To: MtnClimber

I do not know why, specifically, this works but it does:

For several hours before and after the equinox you can balance a raw egg on its base and it will stay balanced until some external force topples it. I have done it many times, once one the pointy end.

It is said that at the equinox the forces of nature are balanced...I have never successful balanced an egg any other time I have tried..

Autumnal Equinox 2025

Date: September 22, 2025
Time: 2:19 PM Eastern Daylight Time (EDT)
Equivalent: 11:19 AM Pacific Daylight Time (PDT)

I’d say from noon to 4:30 PM will be the best balancing window (EST).

Good luck!


12 posted on 09/22/2025 5:45:40 AM PDT by BBB333 (The Power Of Trump Compels You!)
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