Monthly Archives: October 2014

The Sun in Hydrogen Alpha light

I’ve managed to piece together a pretty nice setup for observing the Sun in hyrogen alpha light.  It doesn’t work quite as well for photography, but I managed to grab the image below today.  The H-alpha filter is a 75mm Lunt Solar Systems double stack with a 0.05 nm bandpass.  This narrow bandpass really brings out the granulation on the surface compared to the wider single stack bandpass that shows primarily prominices.  Next time out, I’ll grab a pair of photos to illustrate the difference between the single stack (0.07nm) bandpass and the double stack bandpass.   The filter was attached to a TeleVue NP101is.

Sol in Hydrogen Alpha