If you go to the Griffith Observatory

GRIFFITH OBSERVATORY: Opening Nov. 3 in Los Angeles. Admission is by reserved, timed-entry tickets only. No drive-up access; guests arrive by shuttle bus.

TICKETS: www.griffithobservatory.org or 888-695-0888 (8 a.m.-6 p.m., Pacific time). Beginning Oct. 30, reservations also may be made in person at the Griffith Observatory Satellite (4800 Western Heritage Way, next to the Los Angeles Zoo and Botanical Gardens in Griffith Park). Reservations fee: Adults, $8; children 5-12, $4; children 4 and under, free. Tours offered Tuesday-Friday, noon-10 p.m., and Saturdays and Sundays, 10 a.m.-10 p.m.

GETTING THERE: Park your car at the Hollywood & Highland entertainment complex in Hollywood and take a shuttle bus from Orange Court, the circular bus driveway on Orange Drive just north of Hollywood Boulevard, or park at the Griffith Observatory Satellite and take a bus from there.

HIKERS AND BIKERS: A limited number of free, timed-entry reservations will become available 48 hours in advance for hikers and cyclists who want to visit the Observatory the next day.