Recent content by Eleftheria

Hello, I only saw your reply yesterday russ_watters (Being Greek sometimes gives you the advantage of long summer vacation... :-p ) You see the thing is that I had the task of building a coronagraph for a specific telescope. I've checked the diameter of my occulting disk and all, and it...

I want to photograph the solar corona and I don't know what type of ccd camera I need to purchase. Can anyone please help me?

Judging by that figure I assume that the difference in temperature (from the lowest to the highest value) for the corona is about 1 500 000 K (more or less), which means that the lowest value must be multiplied by 10 to reach the highest. So, based on the equation that relates temperature and...

I've been trying to find out what's the curve for the solar corona luminosity vs distance like. I know that the corona can be practically observed up to 4 solar radii. I also found out that the curve is more or less exponential but I need the actuall equation of the curve. Can anyone help me?