THE SIGNAL BOARD

Last week the comet was easy to find; tonight I could barely pick it out in the same binoculars. Clear weather both nights. Is that ordinary variability? My uncle claims something is blocking it. I think the moon is the simpler answer.

juniper_scope, did you compare it with the same stars each night? Thin cloud can change an impression dramatically.

No, I was going from memory. Last night it seemed brighter than the star to its right.

A comet can have an outburst, but your viewing conditions need checking first. Even using the same binoculars helps.

deepfield: tried the same pair tonight and wrote down the comparison stars. Much less dramatic difference.

Useful result. Keep that little log; if a real change happens you will have something firmer than yesterday felt brighter.