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RPi - Total Solar Eclipse March 2015

Posted: Sat Jan 17, 2015 3:14 pm
by aMIGA_dUDE
I trying to come up with ideas on how we could use the RPi with upcoming Total Solar Eclipse which is happening on 20 March 2015. So thats put our thinking hats on lets see how we can do something special with our RPi's.

It should viewable from these locations
Europe, North/East Asia, North/West Africa, West in North America, Atlantic, Arctic
http://www.timeanddate.com/eclipse/list.html

PS Also BBC Stargazing Live is back on screens at this time as well, sweet.
https://www.facebook.com/StargazingLive
http://www.bbc.co.uk/programmes/b019h4g8

I have no connection with BBC Stargazing Live.

Re: RPi - Total Solar Eclipse March 2015

Posted: Sat Jan 17, 2015 4:02 pm
by PiGraham
With the right lens and filter you could video the sun in HD, stream it to the world, set up a screen so that people can safely view it. Never look directly at the sun.

You could attach a light sensor and temperature sensor to chart the changes in light and heat as the sun is obscured.

You could make a countdown clock to let people know when it will happen. Big LED display and tweets.

You could run an eclipse simulator on the Pi showing how it will look. Apparently Stellarium doesn't run on Pi well, but KStars does.
http://www.agurney.com/raspberry-pi/stargazy-pi

Re: RPi - Total Solar Eclipse March 2015

Posted: Sat Jan 17, 2015 4:07 pm
by pluggy
We just need a volunteer to go up inside the Arctic circle so its total.....

Re: RPi - Total Solar Eclipse March 2015

Posted: Sat Jan 17, 2015 4:51 pm
by PiGraham
pluggy wrote:We just need a volunteer to go up inside the Arctic circle so its total.....
Send a Pi on a balloon?

Re: RPi - Total Solar Eclipse March 2015

Posted: Sun Jan 18, 2015 1:21 am
by DougieLawson
aMIGA_dUDE wrote:

It should viewable from these locations
Europe, North/East Asia, North/West Africa, West in North America, Atlantic, Arctic
http://www.timeanddate.com/eclipse/list.html
http://eclipse.gsfc.nasa.gov/SEgoogle/S ... oogle.html has a better track of the line of totality.

Even from the UK we're too far south to get more than a partial. There's not a chance of seeing much of it in Africa.
Image

You need very dark eclipse glasses (the ones you kept from 1999) or you'll need to project an image of the sun with a scope or binoculars. Looking directly at the sun with your MK 1 eyeballs of with your PiCamera is likely to do serious damage to either piece of exceedingly delicate equipment.

Re: RPi - Total Solar Eclipse March 2015

Posted: Sun Jan 18, 2015 12:00 pm
by PiGraham
I did state not to look directly at the sun and to use suitable filters.
For veiwing by eye you can get cheap metalised film glasses like these:
http://www.harrisontelescopes.co.uk/aca ... asses.html

The same filter will work to protect a camera sensor so you can get a second pair for your Pi camera. Double-up the filter if it's still too bright for the sensor to give a good image.

You will need a different / additional lens on the Pi Camera to see any detail.

A cheap cameraphone 12x telephoto accessory lens might be OK. Put the filter on the front. Don't point it at the sun unprotected or you will cook your sensor.

Binoculars are another option.

Re: RPi - Total Solar Eclipse March 2015

Posted: Wed Mar 11, 2015 5:04 pm
by daveake
PiGraham wrote:
pluggy wrote:We just need a volunteer to go up inside the Arctic circle so its total.....
Send a Pi on a balloon?
This is happening.