it is usually 6yo limit for shows. Maybe for kid-shows the limit is lower but probably 6mo is risky if it decides to cry in the middle.

Not sure I dare answer ... A sleeping 6 month old is no trouble but a crying one may not be appreciated. I don't know if the Planetarium has any guidelines?

Yes it would. It you need to leave the planetarium for any reason you'll disturb everyone else, plus you won't be able to get back in.

yes there is a cafe on the grounds and another at the lookout.

No not at all, the shows are conducted inside. If you visit on a nice day, the gardens are lovely to have lunch and a wander through.

No, they have shows running during the daytime. We didn't see any telescopes. The shows in the planetarium are kind of like an auditorium with the screen on the ceiling, and lay back chairs

Hello! Entrance into the main gallery is free with lots of things to look at. I thoroughly encourage you to book in a show - they are very good value. I remember paying about $45 for a family ticket.

Monday-closed Tuesday - Friday- 10am-4pm Saturday- 11am-7.30pm Sunday -11am-4pm Last film sessions are an hour before closing time. :-)