The trials, tribulations and small triumphs of an Indiana astronomer.
Sunday, February 12, 2012
Whole Disk H-Alpha Image
This is a whole disk H-Alpha image taken today with the PST and a digital SLR. The PST has a "sweet spot" in the filter and detail outside the sweet spot does not show very well, so not all features have been captured. Note the prominences at the bottom of the image and spot group 1416 toward the middle of the disk.