Observatory Park - Gaithersburg, MD
Posted by: Groundspeak Premium Member Ernmark
N 39° 08.203 W 077° 11.885
18S E 310021 N 4334249
Quick Description: Municipal Park created from the grounds of a former observatory which was used to measure the wobble of the Earth.
Location: Maryland, United States
Date Posted: 5/11/2015 8:51:22 PM
Waymark Code: WMNWFH
Published By: Groundspeak Premium Member lumbricus
Views: 4

Long Description:
This observatory, which is the centerpiece of this park, was built in 1899 & along with 5 other observatories built at the same latitude made observations of specific stars. The information was used to calculate the wobble of the Earth's axis.

The other original observatories were located in California, Ohio, Italy, Japan, & Turkestan - all at 39° 08' latitude.

These observatories continued to operate until 1982, when GPS technology rendered them obsolete, although data collected during their operation continues to be of use.

The observatory building and nearby Meridian Pier as well the 5 geodetic survey marks on-site are included in the National Register of Historic Places. The grounds are now maintained by the City of Gaithersburg as a park.
Name: Observatory Park

Street Location: 100 DeSellum Avenue

Local Municipality: Gaithersburg

State/Province, etc.: Maryland

Country: United States

Web Site: [Web Link]

Memorial/Commemoration: International Latitude Observatory

Picnic Facilities: none

Recreational Facilities:
- Walking Path - Benches - Wayside Informational Plaques - Benchmark Hunting (if so inclined)


Monuments/Statues: Historic Wayside Plaques, Buildings, Geodetic Survey Marks

Art (murals/sculpture, etc.): none

Fountains: none

Ponds/Lakes/Streams/Rivers/Beach: none

Traditional Geocaches:
none


Date Established: Not listed

Special Events: Not listed

Visit Instructions:
One photo of the park that is a different view from the one on the page, and give the date and description your visit.

Add any additional information that you may have about this park. A GPSr photo is NOT required.
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Recent Visits/Logs:
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Searcher28 visited Observatory Park - Gaithersburg, MD 5/25/2015 Searcher28 visited it