Public Directory Add to Address Book. Gemini Observatory Gemini Observatory Address 670 North A’ohoku Place Hilo HI 96720 United Statespostal Phone: (808) 974- 2500home Work Email: info@noirlab.eduINTERNET Website: http://gemini.edu Related by Category Thirty Meter Telescope Obs. Corp. (808) 284-9922home inquiry@tmt.orgINTERNET Subaru Telescope / NAOJ pr_inquiry@SubaruTelescope.rogINTERNET Institute for Astronomy 808 932-2300home Canada-France-Hawaii Telescope Corp. (808) 961- 2639home info@cfht.hawaii.eduINTERNET W. M. Keck Observatory