Comet C/2014 Q2 (Lovejoy) passed within about a degree of open cluster NGC 457, the E.T. Cluster, the week of March 9, 2015. This image is from Monday March 9, 2015, approx. 9:00 pm to 9:55 pm from Caledonia ON.
M103, another open cluster, is visible at far right. The bright star Delta Cassiopeiae is near lower right. The red emission nebula, Sh2-188, is faintly visible near the comet. North is towards the lower right.
This is a stack of 33 1-minute exposures at ISO 1600 and f/2.8.
I used my Canon 40D DSLR with an Astronomik CLS light pollution clip-filter and my Tamron 300mm f/2.8 telephoto lens on my SP EQ mount.
This was a lot of hard work processing this image; about a dozen iterations of layering and masking….. not including the gradient blending I had to do to flatten the field from side to side a bit better.
Very nice image, Bob. I love the ET cluster, and the addition of the comet makes it a special image. Well worth all the work you put into it.