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Old 04-21-2014, 08:01 AM
 
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Quote:
Originally Posted by Mac15 View Post
Idk...

All I know is that the civil twilight times are wrong for here because its always brighter for much longer... Like yesterday it was broad daylight to about 9:15 and it was twilight to about 10:15... So it is wrong...
Visible light lasts until about 12-13 deg for clear sky, even in overcast it can lasts until 8-9 deg

 
Old 04-21-2014, 08:04 AM
 
Location: North West Northern Ireland.
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Quote:
Originally Posted by divisionbyzero0 View Post
Visible light lasts until about 12-13 deg for clear sky, even in overcast it can lasts until 8-9 deg
For locations north of 54°34' N or south of 54°34' S latitude, the Sun will never be lower than 12 degrees below the horizon for a period in the summer.

Nope... the sun doesn't go below 11 degrees.
 
Old 04-21-2014, 08:47 AM
 
Location: Bremerhaven, NW Germany
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Quote:
Originally Posted by Mac15 View Post
The sun only goes 10 below here but its still dark enough that you can't walk
Do you have mountains or hills to the north? Actually you should see the twilight even better than me with being further North.

Here's a picture i look last year on 17th June from my apartment at 12:30 AM, this is almost as dark as it gets at night.
Attached Thumbnails
Sunrise, Sunset, and Twilight! What are your city's times for today?-img_6681.jpg  
 
Old 04-21-2014, 10:45 AM
 
Location: North West Northern Ireland.
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Nope its ocean to my direct north...

But it doesn't get dark. Its just blue to the north and that only lasts for 30 minutes..
But you still can't walk because its dark at low level... I think probably about 57N you would have brightness all night.
Attached Thumbnails
Sunrise, Sunset, and Twilight! What are your city's times for today?-image.jpg  
 
Old 04-21-2014, 10:54 AM
 
Location: North West Northern Ireland.
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Really you have to be above 60N to get a true bright night.. at local midnight (1:30am) it is pretty dark.. that picture there is taken at 12am which is not local midnight..
 
Old 04-22-2014, 03:19 AM
 
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Mine sunrise today is 6.09. Do Mac15 and East Frisian have the same time today?
 
Old 04-22-2014, 03:21 AM
 
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Quote:
Originally Posted by The East Frisian View Post
Do you have mountains or hills to the north? Actually you should see the twilight even better than me with being further North.

Here's a picture i look last year on 17th June from my apartment at 12:30 AM, this is almost as dark as it gets at night.
The nautical dusk in that date was 12:27 AM, so the picture means it was already passed nautical dusk
 
Old 04-22-2014, 03:31 AM
 
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A bit out topic:

In Jakarta,







It is true that Jakarta rained with ice?

Maybe bronski also can read this (and also for other can see the pictures if the images above don't appear)

JAKARTA HUJAN ES BATU GAN! (+PIC) | Kaskus - The Largest Indonesian Community

It's near bronski's place (tangerang), however
 
Old 04-22-2014, 03:46 AM
 
Location: North West Northern Ireland.
20,633 posts, read 23,890,394 times
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6:08
8:46
 
Old 04-22-2014, 04:42 AM
 
4,658 posts, read 3,660,811 times
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Quote:
Originally Posted by Mac15 View Post
6:08
8:46
Oh, you're earlier 1 minute for the sunrise
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