University of Oregon

Visiting

Visiting the Pine Mountain Observatory

Note: Please do not use comments on this page to request tours. Call the PMO phone number instead, and leave a message if there is no answer.

Can the Public Visit Pine Mountain Observatory?

YES! We welcome visitors on Friday and Saturday evenings (we’re closed Sundays) from Memorial Day weekend in May through the last Friday/Saturday in September, weather permitting. Although we’re open on all these public nights (except in case of emergency), you should choose a night with favorable weather and mostly clear skies if possible. By looking at the information and camera images on our weather page, you should not normally need to call us in advance for onsite weather information. “Dark Moon” weekends are best. Full Moon weekends are least favorable. To see the Moon itself in the early evening, the weekend closest to First Quarter Moon will be best. A Moon phase calculator is available to help you plan your visit. Additionally, you may enjoy an observatory virtual tour.

Please let us know a day or more in advance if you plan to bring a group of more than eight people by calling (541) 382-8331, as we may be able to obtain an additional volunteer to assist with your group. We may be able to arrange visits at other times by advance reservation.

Programs commence at 8:45 p.m. (about sunset) through mid-summer, then move back to 8:30 p.m. and 8:00 p.m. start times by late August and September, as darkness falls earlier. For opening night, May 23, 2014, please try to arrive no later than 8:30 p.m. Late arrivals after 10:00 p.m. are not recommended. Depending on conditions, telescopes may be shut down or put away by 11:00 p.m. or even earlier, however on clear moonless nights the 24-inch telescope will almost always be open until midnight. We regret that it’s usually not practical to open or re-open telescope viewing late at night if initially poor weather conditions improve, but groups camping can inquire in advance.

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How Much Does it Cost?

To defray expenses and improve our outreach program, we encourage a $5.00 donation per person. A donation box will be provided in the tent. The minimum fee for group tours on non-public nights is $100.

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Where is Pine Mountain Observatory?

PMO is located 34 miles southeast of Bend, in Central Oregon. Take State Highway 20 east from Bend, toward Burns. 26 miles from Bend, just beyond the tiny Millican store (CLOSED) turn on the dirt road and follow it to the top of Pine Mountain, about 8 miles. This drive requires about an hour from Bend. Be sure you have enough fuel to return to Bend and be sure to bring warm clothing, food and water, as there is usually no food or water service onsite.

Google Map to Pine Mountain Observatory

ODOT Highway Information

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What can I Expect When I Visit Pine Mountain Observatory?

After parking, walk past the kiosk and go to the greeting center/gift shop. Here you will be given information concerning the evening’s activities and how to proceed. A large tent is positioned directly across from the greeting center. Here you can learn about basic astronomy, what objects will be featured during your visit, participate in an interactive lecture, and learn how to navigate around the PMO site.

Visitors are provided with a tour of the large telescopes, which this year will include a refurbished 15-inch scope that had been out of service for several years. Shortly after sunset, viewing of the moon (if above the horizon) and bright planets begins, clear skies permitting. As the sky darkens, tour guides show visitors objects through the various telescopes, and a guided binocular tour will be available on some nights. They also point out a variety of celestial objects visible with the naked eye.

To enhance your experience, tour guides explain in detail about what you see. Your questions and comments are greatly appreciated. Our 24-inch telescope is the prime visual instrument for visitor viewing. It also has a CCD camera attached to a “piggybacked” 8-inch telescope to create wide-field images. [A number of these images have been posted on the blog.] Often, several smaller portable telescopes will be available nearby. The 32” telescope down the path to the east is used for research work Sunday through Thursday. It is configured with a camera at its prime focus which precludes visual observing, however, images produced by the camera may be available for viewing.

Once again, check in at the greeting center/gift shop for a selection of DVDs and books about astronomy, plus many other souvenirs and educational items. We offer a free handout sheet about general astrophysics, as well as projects that you can do to observe the sky. Depending on available volunteers, the gift shop may be open for only a short time, and will usually close by 9:30 or 10 p.m., so arrive early.

When skies are clear, PMO guides may stay up all night viewing! Frequently, they set up their personal telescopes for visitor use.  Some portable scopes are as large or larger than the ones in the domes! Amateur astronomers are welcome to bring their own telescopes and binoculars; electrical power is available if needed. If you are bringing up your own viewing equipment, please arrive well before dusk to get set up. Please contact us in advance if you will need to drive inside the gate; vehicle access for telescope setup/removal may not be possible at night.

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Is There a Place to Camp Overnight?

Yes, a primitive Forest Service Campground, open on a first-come-first-served basis is located just across the road from PMO. It is rarely full but you may want to call and inquire how busy the Observatory schedule is, especially during the new moon dates. The camping area consists of 4 drive in sites that can hold trailers up to 27 feet in length, and there are 10 “hike” in sights for tent camping. There are no camping fees. Campground use regulations are the same as any National Forest Camp and are posted.  It has one outhouse, no power hookups, water or trash services. Please “pack it out.” Open fires are regulated by danger levels set by the Forest Service. Fire restrictions are posted in the campground and along the road just past the 3rd cattle guard on the way up. Don’t forget to bring water to drink and extra water to douse campfires.

Please note that the nearest hotels are in Bend, approximately an hour drive from the Observatory.

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What Precautions are Recommended?

PMO is at an elevation of 6,300 feet, therefore temperatures can drop near or below freezing, even on summer nights. Please bring warm clothing.

The buildings are separated by natural mountain terrain and stairs, and the buildings contain stairs. Please wear protective footwear and expect to climb steps. You should bring a SMALL flashlight to help you find your way in the dark; a red colored shield will be required to protect everyone’s night vision. Red cellophane and rubber bands will be available to cover your flashlight. Please no white lights after dark (unless the weather turns bad) and no flash photography after dark.

We welcome children (grade school and up), but small children and infants will probably not be comfortable in this environment. Children should be asked not to wear shoes with lights. We’ll try to have some tape suitable for covering shoe lights if needed.

Please do not enter the fenced-off area near the 32-inch telescope dome except as part of a guided tour. There are some steep slopes in that area, and the telescope(s) may be in use for research.

PMO is a smoke-free University of Oregon campus. Please smoke only in the campground, following any posted Forest Service rules. During the dry season, smoking may only be allowed inside vehicles.

Dogs or other pets should be kept in the campground area whenever possible at night or during busy periods. Dogs are not allowed in the telescope viewing areas at night, except trained service dogs.

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Why Red Lights?

In the dark, the pupils of your eyes open up to admit more light, and your retina also becomes more sensitive. This is what gives you “night vision” so you can see faint objects on the ground and in the sky. If the eyes encounter a white light, the pupils close down again and may take twenty minutes or more to fully open, and for your retina to regain full sensitivity. At Pine Mountain, we are very protective of night vision. Do not operate any white lights on the hill while observing is in progress. We have red cellophane that you can affix to the front of white flashlights with rubber bands. Gentle red light aimed down will allow you to see your way around, but will not trigger the pupil sensor.

Other tips:  when you arrive on the mountain, turn off your headlights as soon as you park, and do not turn them on again until you are ready to pull out. Keep your smartphone put away (or use well away from telescopes): the screen is actually quite bright in the dark. If your children have sneakers with lights, leave them at home (the shoes, not the kids).

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For Information/Questions or to Schedule Class or Group Visits:

Call 541-382-8331  or contact us via email at markpmo@uoregon.edu

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17 responses to “Visiting”

  1. Sigh. I was hoping that you’d be open during spring break. Guess not. Hope to see you this summer.

  2. Hi, when will the observatory hours will posted? I only see it is open from late May to Sep for pubic viewers.

    Thanks

    1. Unless otherwise announced, just try to arrive by sunset. If sky conditions are good, we’re usually open until at least midnight, however arriving that late is not recommended … you’ll miss a lot!

  3. I thought that in August you had a camping and star watching event. Has that been discontinued?

    1. You can camp anytime, and PMO is open Friday and Saturday evenings from Memorial Day weekend until the end of September. A number of people camp and watch the Perseid meteors around August 12. You may also be referring to the Oregon Star Party, which is an annual August event at a location east of Prineville.

  4. Is it possible to bring my own telescope to setup in the area?

    1. Yes, however if it’s large enough that you need to drive in (past our gate) to set it up, advance approval is required. I suggest calling at least a couple days in advance of your visit.

  5. What do you consider as “late May”? We’ll be coming through about the 15th, 16th and 17th. Will you be open then?

  6. I realize this will not be the best year for Persieds but it will be my granddaughter’s 15th birthday and we’d like to come camp 8/11-12.
    Just HOW primitive are the campsites. (toilet facilities?) (Bear boxes?)

    1. There is a campground toilet as well as two portable toilets on the PMO grounds. Otherwise it’s primitive (no water, only a few approved fire pits, etc.) There are no bear boxes, but then again, there aren’t any bears on Pine Mountain, as far as I know. Still it’s always a good idea to properly secure your food at night or while away from camp.

  7. Can the camp group accommodate a small 25′ rv, and is the road up fairly decent, or would that be a challenge?

    1. The road is a bit bumpy in places, but no really sharp curves and no need for high-clearance vehicles. 25-foot is probably the largest size I would recommend, but I’ve never driven one myself. There should be enough room in the campground parking. Perhaps the observatory manager can give a better response.

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