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?
