Whichever constellation is known, it will always be above the horizon for the astronomer to identify, regardless of season, time, hemisphere, or in extreme cases, planet. It is impossible for a hollywood couple to look at the sky for more than 5 seconds without seeing a shooting star. Early theories about space being pervaded with an 'ether' could be explained by the continual deep humming that is everywhere once you leave Earth, and the fact that Laser beams are visible in vacuum. Spacecraft are always kept fully fuelled and ready to launch by pressing one button, inside the spacecraft. This is even true if the spacecraft is a shuttle, and the only people on it are a bunch of unaccompanied schoolkids.
Planets generally have a rotation period measured in seconds.
The more brightly coloured the planet, the quicker it rotates.