Here are some of my star trail notes:

Camera:
Battery independent Nikon F2
(I would not hesitate using a Nikon FM series camera if I had one)

Lens:
Normal to wide (50mm to fisheye)

Support:
Tripod

Misc:
Locking cable release
Stiff black felt square (5 x 5 inch) to block unwanted light on lens from motor vehicles and air craft.

Exposure suggestion:
ISO 100; f/8; 30 minutes plus film reciprocity