Entry No. 6 — the Providence file — filed under: stargazing
Seagrave Memorial Observatory
Since 1937, the Skyscrapers — Rhode Island's amateur astronomical society — have opened this small observatory in the Scituate woods every clear Saturday night and let anyone walk up to the eyepiece for free. The prize instrument is an 1878 Alvan Clark refractor that belonged to astronomer Frank Seagrave, backed by a 12-inch Patton reflector and a pair of big Meade Schmidt-Cassegrains. Volunteer members run the scopes and will aim them at whatever the night offers, from Saturn's rings to whatever comet is passing through. It is strictly weather-dependent: the society posts a go/no-go notice on its website, and a snowed-in parking lot in winter cancels the whole thing.
→ Three more after-dark & night-sky spots in Providence — never the same twice
The story
Frank Evans Seagrave was born in Providence on March 29, 1860, the son of a textile mill owner and bank president, and got hooked on astronomy watching a lunar eclipse at fourteen. His father ordered him an 8¼-inch Alvan Clark refractor for his sixteenth birthday in 1876; it took two years to build and arrived in 1878, the third largest telescope in New England and the largest in private hands. He kept it at 119 Benefit Street and did real work with it, computing planetary orbits, following variable stars and comets, and taking micrometer measurements of Saturn's rings in 1901-02 and again in 1914-15. Brown gave him an honorary degree in 1911 for his ephemeris of Halley's Comet.
Coal smoke and streetlights drove him out of the city. In 1914 he moved the telescope to 47 Peeptoad Road in North Scituate, where the present observatory was finished that October. Seagrave died on August 15, 1934; his cousin and executor Walter F. Angell died in 1936 and the property went up for sale. Skyscrapers, Inc. — the Amateur Astronomical Society of Rhode Island, founded in 1932, which had made Seagrave an honorary member — bought it in November 1936 and has been opening it to the public on Saturday nights since 1937.
The Clark still sits in its silo-like tower, refurbished in 2003, 105 inches of focal length at f/13. A double roll-off roof building holds the 12-inch Patton reflector, a Newtonian that past club president Ralph C. Patton finished in 1929 and kept on a Providence factory roof until it was donated in 1992 and returned to service in 1995, plus 12-inch and 16-inch Meade Schmidt-Cassegrains. The 20-by-40-foot meeting hall dates to May 1952 and hosts talks and the club's annual AstroAssembly convention. Everyone working an eyepiece is a volunteer, and nobody takes your money at the door.
What it's like
The whole thing turns on the forecast, so check theskyscrapers.org in the afternoon — they post a plain notice when clouds have killed the night. If it holds, drive out to Peeptoad Road at dusk, park in a lot that takes about 40 cars, and walk up to whichever dome has a line. Members work the eyepieces and will point at whatever the sky is offering that week: Saturn, the Moon, a double star, a comet if there is one going. You wait your turn, you ask questions, and somebody answers them properly. Dress a full season colder than the air temperature — you are standing still in the dark for a couple of hours — and there are no indoor restrooms, so plan accordingly.
The move: If Saturday looks clear, check theskyscrapers.org that afternoon for the open notice, drive the 25 minutes out to Peeptoad Road at dusk, and take turns at the 1878 Clark refractor — it is free, so spend the ticket money on a late diner stop on the way back.
📍 Before you go Saturday nights only, free, and only when the sky cooperates — check theskyscrapers.org for the posted open/closed notice before driving out (clouds or a snowed-in lot mean no-go). Free parking on site; no alcohol and no indoor restrooms. Groups can arrange other nights by appointment at (401) 885-1608.
- 📍 North Scituate
- 💸 $
- ⚡ Low-key
- 🌗 Outdoors
Where: 47 Peeptoad Rd, North Scituate, RI 02857
Hours: Added 2026-08-25 — confirm current hours before you go.
⚠ Seasonal or scheduled — always check before you go.
Pair it with
- Jerimoth Hill — About twenty minutes west in Foster, and the natural daylight half of the same trip — sign the summit register at Rhode Island's 812-foot high point while there's still light, then be at Peeptoad Road by dusk.
- Ladd Observatory — Brown's 1891 dome opens free on clear Tuesday nights, so it covers the week Seagrave gets clouded out — and puts an 1891 Brashear refractor next to an 1878 Clark for comparison.
- Frosty Drew Observatory & Sky Theatre — Friday nights in Charlestown under genuinely darker sky, with a heated Sky Theatre to retreat into — the version of this evening for people who found standing outside in January character-building.
More weird in Providence
Good to know
How do I know whether it's open?
Saturday nights, weather permitting, and the Skyscrapers post the call on theskyscrapers.org — a flat line like "closed due to clouds in the forecast" goes up when it's off. Check the afternoon of, not the day before. In winter, snow closes it long after it stops falling: if the parking lot is snowed in, there is no open night.
What does it cost?
Nothing. Public open nights are free; donations are welcome and can be made through the website. Group visits by appointment are cash only.
Where do I park?
In the observatory's own lot, which holds about 40 cars. The town of Scituate does not allow parking on Peeptoad Road, so on a busy clear night carpooling is the difference between getting in and turning around. It's about 25 minutes from Providence, west via Route 116.
Can I bring a group?
Yes, by appointment on nights other than Saturday, up to about 50 people — schools, scout troops, church groups and libraries are the regulars. Call (401) 885-1608 to arrange it. No alcohol on the grounds.
Which telescope will I actually look through?
Depends who's on duty and what's up. The 1878 Alvan Clark refractor in the tower is the one people come for, but the 12-inch Patton reflector and the 12- and 16-inch Meade Schmidt-Cassegrains in the roll-off roof building are all working instruments and often the better view for a given target.
Plan a visit & invite your people →
Further reading: theskyscrapers.org · visitrhodeisland.com
last checked: 2026-08-25