The tail on Comet Pan-STARRS just keeps on growing. Here's an image from the evening of 5/31/2013. The field of view is approximately 3.8° x 2.7° wide — being the selfish comet that it is, Pan-STARRS takes up all of it.
|Comet Pan-STARRS and its unruly tail. Photo taken 5/31/2013 at about 10:30PM PT.|
Takahashi FSQ-106EDX-III, FLI ML11002-C (not color-converted), single 10-minute exposure. No calibration.