December 15th - 1 star

"Well that's weird."

"What?"

"There's a star that's not moving."

"What do you mean, 'not moving'?"

"Um... take a look."

"That's odd... it's not moving."

Your data set

Download the 'stars.txt' file below. It contains 3 sets of data, being the light intensity of a block of sky almost due west of your observatory. The vast majority of the sky is moving east to west as it should... but one bright spot isn't moving. How bright is it?

stars