Accurate Sunrise / Sunset Times
Discussion
If I wanted to know the exact time of sunrise or sunset on a particular day for a particular location, how should I go about finding out?
There are numerous online resources that I've tried and I've even got an app on my iPhone that does it, but the problem is that none of them agree.
Is the Met Office website the one I should trust?
There are numerous online resources that I've tried and I've even got an app on my iPhone that does it, but the problem is that none of them agree.
Is the Met Office website the one I should trust?
Look up the standard times for the UK which are based on the '0' degree meridian.
Find your location east or west of that meridian, 15 degrees equals 1 hour, 1 degree equal 4 minutes. there are 60 minutes in a degree and each minute equals four seconds.
The reality is that due to elevation and surrounding countryside anything to more than quarter a degree is going to be largely academic.
Examples. SR Greenwich 05.34am BST your location E 1 deg 35 min 29sec...
The 'E' means it will occur after the Greenwich ('W' mean before) so at the location in my example sunrise will be sometime between 05.40am and 05.41am, but if in a valley or where there are hills to the west of you it might be a few minutes later, if you up high with fabulous views to the west then earlier than either time I've given.
Hope that helps.
Find your location east or west of that meridian, 15 degrees equals 1 hour, 1 degree equal 4 minutes. there are 60 minutes in a degree and each minute equals four seconds.
The reality is that due to elevation and surrounding countryside anything to more than quarter a degree is going to be largely academic.
Examples. SR Greenwich 05.34am BST your location E 1 deg 35 min 29sec...
The 'E' means it will occur after the Greenwich ('W' mean before) so at the location in my example sunrise will be sometime between 05.40am and 05.41am, but if in a valley or where there are hills to the west of you it might be a few minutes later, if you up high with fabulous views to the west then earlier than either time I've given.
Hope that helps.
Try this.
http://www.ap-i.net/skychart/en/download
It will give you all the information that you want.
It gives "Sunset", "Nautital Twilight" and "Astrononomical Twilight" times.
Don
--
http://www.ap-i.net/skychart/en/download
It will give you all the information that you want.
It gives "Sunset", "Nautital Twilight" and "Astrononomical Twilight" times.
Don
--
Gene Vincent said:
Look up the standard times for the UK which are based on the '0' degree meridian.
Find your location east or west of that meridian, 15 degrees equals 1 hour, 1 degree equal 4 minutes. there are 60 minutes in a degree and each minute equals four seconds.
The reality is that due to elevation and surrounding countryside anything to more than quarter a degree is going to be largely academic.
Examples. SR Greenwich 05.34am BST your location E 1 deg 35 min 29sec...
The 'E' means it will occur after the Greenwich ('W' mean before) so at the location in my example sunrise will be sometime between 05.40am and 05.41am, but if in a valley or where there are hills to the west of you it might be a few minutes later, if you up high with fabulous views to the west then earlier than either time I've given.
Hope that helps.
The sun rises in the East, so if we are further East the sun rises at an earlier time. Find your location east or west of that meridian, 15 degrees equals 1 hour, 1 degree equal 4 minutes. there are 60 minutes in a degree and each minute equals four seconds.
The reality is that due to elevation and surrounding countryside anything to more than quarter a degree is going to be largely academic.
Examples. SR Greenwich 05.34am BST your location E 1 deg 35 min 29sec...
The 'E' means it will occur after the Greenwich ('W' mean before) so at the location in my example sunrise will be sometime between 05.40am and 05.41am, but if in a valley or where there are hills to the west of you it might be a few minutes later, if you up high with fabulous views to the west then earlier than either time I've given.
Hope that helps.

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