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The 100-Inch Hooker Telescope

Join us at the birthplace of modern astronomy as we gaze through the same telescope used by Edwin Hubble to discover that the universe is expanding.

First we brought you to the 60-Inch Hale telescope. Now, we invite you to join us for an exclusive evening with the 100-inch Hooker telescope. When it comes to telescopes—yes, bigger is better.

The 100-inch Hooker was the world’s largest telescope from 1917–1949. This world-heritage-class instrument was used by many of the most remarkable astronomers of the 20th century, including Hubble, Zwicky, and Baade. In 2015, after 98 years of scientific service, this historic telescope retired and is now open to the public for night-time viewing.

Please join us for this once-in-a-lifetime opportunity to gaze beyond our galactic borders with this truly historic telescope.

ADDITIONAL DETAILS

  • START TIME: The exact start time of this event has yet to be determined, but will be around 6:00 pm. 
  • MANDATORY CARPOOLING: Due to limited parking, carpooling is mandatory. We will meet up in La Cañada Flintridge to carpool up the mountain. There are no refunds for people who miss the carpool and we are not able to wait for those who arrive late. Plan your route ahead of time to assure punctual arrival.
  • CLOUDS AND CANCELLATION: This event is weather dependent. Attendees will be provided with a phone number to call the day of the event to confirm the status. It is your responsibility to confirm status.
  • Should a viewing session be cut short by weather after it has begun, payment will be refunded on a pro-rata basis. Click here for more details.
  • We cannot accommodate children under age 12. All ticketed minors must be accompanied by a ticketed adult.
  • Eat dinner before the event. You are also encouraged to bring snacks—just remember to bring enough to share!
  • It could be cold! Warm coats, sweaters, and hats are suggested. The dome is NOT heated.
  • There may be mosquitoes! Feel free to bring bug spray.
  • The 100-year-old dome is not ADA compliant, and the telescope is inaccessible to those who cannot climb the 30 steps to the observing deck. The Observatory is at 5,700 feet elevation, so anyone with breathing or heart problems should not attempt the trip.
  • Photography is encouraged! Only rule is that the flash must be disabled when the dome lights are off for viewing.
  • Bring a regular flashlight to use when leaving the dome to go to your car. The grounds are unlit and are very uneven and hilly.
  • Alcohol is prohibited and no smoking or flames are allowed inside the dome at any time.
  • A liability waiver is required for this event.

Questions?

Email Erin Johnson at [email protected]

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Advance Tickets Only. All Sales Final. No Refunds or Exchanges.