KLB Science Department Interactivities Solar data table
Sunrise and sunset times:
This table shows the times of sunrise and sunset in London throughout the year.
(all the times are in decimal hours and GMT on a 24-hour clock)
Date
Jan 21
Feb 21
Mar 21
Apr 21
May 21
Jun 21
Jul 21
Aug 21
Sep 21
Oct 21
Nov 21
Dec 21
Sunrise
8.0
7.2
6.0
5.0
4.1
3.7
4.1
4.8
5.8
6.6
7.4
8.1
Sunset
16.3
17.3
18.2
19.1
19.8
20.3
20.1
19.3
18.1
17.0
16.1
16.0
Suggested activities:
Copy and paste the data into a spreadsheet. Many spreadsheets will let you plot a graph of date vs. sunrise and sunset times.
You could add two further rows using a spreadsheet, the day-time (the time difference between sunrise and sunset) and the night length. (Hint: day-time and night length add up to 24). You could then plot these against the date.
Questions to answer:
When is the day longest?
When is the day shortest?
When is the day-time equal to the length of the night?
