Approaching the longest day
As we approach the longest day of the year, here is the sun information today in Helsinki.
Sunrise 3:55.
Sunset 22:49.
Length of day 18 h 54 min.
In reality, the sky is light for most of the "night."
posted by David Schultz @ 12:42 PM
1 comments
1 Comments:
Here's a "darkness graph for 60N (Helsinki). Horizontal axis is time of day (midnight in the middle)) vertical axis is the day of year (January to December).
http://www2.astro.utu.fi/zubi/ga/ga60.htm
You can see that there is no real dark, just zones of twilight, until September.
Same for 70N and 30N
http://www2.astro.utu.fi/zubi/ga/ga70.htm
http://www2.astro.utu.fi/zubi/ga/ga30.htm
You can see why there are not too many active astronomers in Lapland during the summer...
And here you get tailor-made tables for most towns in Finland...
http://www2.astro.utu.fi/zubi/ga/ga.htm
Post a Comment
<< Home