Day 4

Today, I got to use my new laptop that I got over the weekend! Unfortunately, the image mosaic service that I used Friday to find images of planetary nebulae wasn't working, so I couldn't continue with my work from last week. Instead I compiled a list of planetary nebulae images as well as the date they were taken, the exposure time, the filter/grating,  etc, using excel. Using this list, we will sort the images by the filter/grating with which they were taken so we can compare and contrast these images.