It is really important that no-one drives up the road after dark with their headlights on, thus blinding everyone who’s vision has just become dark-adapted.

Ideally, everyone should plan to arrive at, or a little after, sunset. It is much easier to set up before it gets dark, and you’ll be ready to start observing straight away. If you do arrive after dark, please park outside the gate and come and find the evening coordinator and they will walk you in with your lights off. When you arrive, please switch your car’s interior lights to the OFF position, this will ensure the car remains dark when you open the door. If your boot lights can’t be switched off, please cover them with red cellophane prior to arriving as after dark, only RED lights are to be used. Under no circumstances are white lights (e.g torches) to be used.

Do NOT lock your car. If the bright yellow lights flash it takes at least 20-30 minutes for eyes to achieve dark-adaption again.

Night Time Etiquette
Photo courtesy of Daniel Patos.
Poor light management creates huge problems for our colleagues who are imaging, so be extra careful if you are close to them. For their part, imagers need to be mindful of their bright laptop screens. Since they are not observing visually, they don’t need dark-adapted eyes. Screens should be switched to night mode, or covered with red cellophane and faced away from visual observers.

When leaving, please don’t switch your lights on until you are well clear of any remaining cars. If your car does not have this ability, please find the coordinator so you can be walked out or advise visual observers to cover their eyes whilst you leave.

Following the above will ensure everyone gets the best night’s observing.

We thank you for your co-operation.