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Old 08-08-2015, 08:36 PM
 
Location: Northern Ireland and temporarily England
7,668 posts, read 5,266,344 times
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NY
5:58am
8:03pm

Home
0:46am
4:16pm

 
Old 08-08-2015, 08:59 PM
 
4,658 posts, read 3,662,941 times
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06:15 am
06:23 pm

Astro twilight end 07:35 pm

Java's earlier sunrise as well, Jakarta's sunrise will be before 6 in few days
Last edited by divisionbyzero0; 08-08-2015 at 09:15 PM..
 
Old 08-09-2015, 05:44 AM
 
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Noticed the darker evenings, probably because it's been cloudy lately
 
Old 08-09-2015, 04:40 PM
 
Location: Northern Ireland and temporarily England
7,668 posts, read 5,266,344 times
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It sunset around 5:30 EST then it got dark with a massive wall of black! So weird!
 
Old 08-10-2015, 05:21 AM
 
Location: Northern Ireland and temporarily England
7,668 posts, read 5,266,344 times
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Blackness approaching.
 
Old 08-10-2015, 05:35 AM
 
Location: Atlanta
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Quote:
Originally Posted by Sickandtiredofthis View Post
It sunset around 5:30 EST then it got dark with a massive wall of black! So weird!
Yeah, it gets dark fast when you cross the terminator from west to east. 600 mph will do that...lol.
 
Old 08-10-2015, 05:46 AM
 
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My recent flight from Bandung to Pekanbaru was NW in July, so sunset and civil dusk period seemed to last longer + the ascending plane as well
 
Old 08-10-2015, 06:26 AM
 
Location: Norman, OK
2,850 posts, read 1,974,030 times
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Quote:
Originally Posted by Sickandtiredofthis View Post
It sunset around 5:30 EST then it got dark with a massive wall of black! So weird!
It's because the lower part of the atmosphere is in shadow while the upper part is still lit by the sun. Haze generally makes it more visible.
 
Old 08-10-2015, 06:44 AM
 
Location: Northern Ireland and temporarily England
7,668 posts, read 5,266,344 times
Reputation: 1392
Quote:
Originally Posted by NorthStarDelight View Post
Yeah, it gets dark fast when you cross the terminator from west to east. 600 mph will do that...lol.
Yeah honestly it went from daylight an hour from sunset to pitch dark in 30 minutes. Odd!

Quote:
Originally Posted by srfoskey View Post
It's because the lower part of the atmosphere is in shadow while the upper part is still lit by the sun. Haze generally makes it more visible.
Sure. I have a picture of it dark below and sunny above
 
Old 08-10-2015, 07:58 AM
 
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As i posted earlier subtract (sqrt(alt in ft))/52.2 degrees

36,000 means sqrt(36000)/52 = 189.7/52.2 = 3.63° so sunrise/set sun angle for 36k ft is around -4.46°
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