New Milford in Western Region, Connecticut — The American Northeast (New England)
Neptune
Fast Facts Distance from the sun: 4.5 billion km - 30x Earth's distance
Diameter at the equator: 50,000 km - 3.9x Earth's diameter
Mass: 17.2 times Earth's mass
Weight on Neptune: A 50kg person would weigh 56kg
Class of planet: Ice giant
Length of year: 164.8 Earth years
Length of day: 16 hours 11 minutes
Known moons: 13
Scale planet size: 65mm
Scale planet distance: 5914 meters
1846 - First observed by Galle and d'Arrest based on predictions made by independent calculations of La Verrier and Adams. It is the only major planet to be discovered using mathematical calculations.
Name History
Named by La Verrier for the Roman God of the Sea, possibly because of its vivid blue hue.
Notable Characteristics
- Atmosphere made up of hydrogen, helium and methane ices possibly surrounding an approximately Earth-sized sold core.
- Neptune's vivid blue color comes from the methane in its atmosphere.
- Neptune's intense winds can reach 2000 km/hour.
- Neptune has a system of faint rings.
Erected 2009 by community supporters of the John J. McCarthy Observatory.
Topics. This historical marker is listed in these topic lists: Air & Space • Science & Medicine. A significant historical year for this entry is 1846.
Location. 41° 34.702′ N, 73° 24.643′ W. Marker is in New Milford in Western Region, Connecticut. It is on Main Street north of Church Street, on the right when traveling north. Touch for map. Marker is at or near this postal address: 24 Main St, New Milford CT 06776, United States of America. Touch for directions.
Regionally, this marker is in Connecticut’s Berkshire Foothills and in the Litchfield Hills. It is also in the American Northeast and in New England. Globally, it is in North America, the Western Hemisphere, the Western World, and the Anglosphere. Historically, it finds itself in what was once Litchfield County and also one of the original Thirteen Colonies.
Other nearby markers. At least 8 other markers are within walking distance of this marker: New Milford WW I Memorial (within shouting distance of this marker); New Milford Civil War Memorial (within shouting distance of this marker); Ships Bell of the U.S.S. Pittsburgh (within shouting distance of this marker); Roger Sherman
Credits. This page was last revised on May 19, 2026. It was originally submitted on August 7, 2023, by Devry Becker Jones of Washington, District of Columbia. This page has been viewed 186 times since then and 17 times this year. Photos: 1, 2. submitted on August 7, 2023, by Devry Becker Jones of Washington, District of Columbia.

