Sheep Hill Observatory

The Sheep Hill Observatory, featuring an 18 inch, f/4.5 Newtonian Reflecting Telescope, is maintained by the organization. The telescope sits on the 2nd floor of the observatory underneath a 16-foot steel dome. The telescope is mounted on an equatorial fork mount with a sidereal-rate tracking motor. It is a beautiful instrument, and is one of the largest telescopes open to the public in New Jersey.

The observatory is open to the public on the 3rd Friday evening of each month at 7:30pm (8:30pm during daylight savings) weather permitting. It is also open during various special events throughout the year, including meteor showers and other celestial phenomenon. Please check our calendar for scheduled events, or sign up for our mailing list to be notified of upcoming events.


To Sheep Hill Observatory

From I-287 South: Take exit 45, make a left onto Myrtle Ave, then right onto Wootton St.

From I-287 North: Take exit 45, make a left onto Wootton St

Continued: Follow Wootton St past Boonton Ave and take the 2nd right onto Ross Dr. Keep right and follow to the end. At the first dirt parking lot, turn right into the upper parking lot.


To Boonton Senior Center

Address: 126 North Main Street, Boonton NJ 07005

From I-287 South: Take exit 45, make a left onto Myrtle Ave, then right onto Main St.

From I-287 North: Take exit 44, make a right onto Main St

Continued: Follow Main Street through the downtown area. It will then split into W Main and N Main, keep right on N Main St and make an immediate left into the parking lot. The Senior Center is towards the far end of the lot.

Observatory Information

Latitude: 40.92° North
Longitude: 74.42° West
Altitude: 925 ft (282 m)
Location: Ross Drive, Boonton, NJ
Primary Instrument: 18" (457mm) F/4.5 Newtonian Reflector