Whether using binoculars, a small telescope or the naked-eye, the Heavens-Above
website can help you to find your way around the night-time sky. In addition to detailed
sky charts, their website will help you find planets, asteriods, comets, satellites and their tracks across the sky.
To give accurate results, Heavens-Above requires the latitude and longitude of your location. As a starting point, when we link to Heavens-Above,
we pass this GPS location for Half Rock:
40.273069, -93.435773
Once you're on the Heavens-Above website, you can improve its accuracy by giving a more precise longitude and latitude as your actual position.
Open the Heavens-Above website centered on Half Rock
Bird Watching ...
We enjoy finding new spots for bird watching and we use the eBird website for local sighting reports and to help identify hotspots.
The eBird website is organized on a county-by-county basis. We have selected Mercer County as the starting point when you click on the link below:
As we travel, we always see a community with a name that gives pause. While there are names which are interesting or familiar, some catch our attention or strike our fancy. We always wonder about such a name. If time permits and the community is not too far, we'll usually try to make a side-trip.
We spend a lot of time looking through Gazetteers that were published in the late 1800's and early 1900's. Many of the Gazetteers include the distance from a community such as Half Rock to various places of note, such as the White House.
With a nod to our favorite Gazetteers, the straight-line distance<2> beginning in Half Rock and extending to:
Princeton, which is the Seat of Mercer County, lies 11 miles [17.7 km]<2> to the northwest. If you could walk a straight line from Half Rock to Princeton, with an average speed<3> of 2.2 miles [3.5 km] per hour, it would take five to six hours to make the trip. A horse and buggy averaging 3.2 miles [5.1 km] per hour would take nearly four hours.
Jefferson City, which is the State Capital of Missouri, lies 135 miles [217.3 km] to the south southeast (SSE). Driving, with an average speed of 63 miles [101.4 km] per hour, would take less than three hours, a buggy would take 6 days and walking would take 8 days.
The White House (Washington, DC) is 876 miles [1,409.8 km] to the east (E). Driving would take most of two days, a buggy would take 35 days and walking would take 50 days.
The shortest distance<4> to Jerusalem (specifically the Temple Mount and the Dome of the Rock) is 6,471 miles [10,414.1 km] and it lies to the northeast (NE).<5>
The distance to the Great Mosque of Mecca (specifically the Ka'bah - or Kaaba ) is 7,216 miles [11,613 km] and it lies to the northeast (NE).<6>
The distance to Saint Peter's Basilica (The Vatican) is 5,107 miles [8,218.9 km] and it lies to the northeast (NE).<7>'
Footnotes ...
<1>
While we're fans and frequent users of TripAdvisor, you should know that we're also members of the TripAdvisor affiliate program.
<2>
Our distances are not driving distances, but are calculated as a 'straight-line' distance. A straight line distance ignores obstructions like rivers, canyons, lakes, et cetera - it's truly a line drawn from Point A (ie- Half Rock) to Point B. In other words: 'As the crow flies'.
<3>
While we have tried to pick reasonable speeds, the rate of travel is very theoretical - obstacles like fences, hills, lakes, river crossings and rest stops have been ignored. When we say 'Days' of travel, we're assuming 8 hours of travel per day.
<4>
The shortest line can be visualized by stretching a string on a Globe from Point A to Point B - this is known as a Great Circle Route. Where you might expect the shortest route from Half Rock to the Middle East to be East and South, the Great Circle Route actually lies to the North and East.Our distance measurements begin at a specific point in Half Rock. The point we use is located at these GPS coordinates - Latitude: 40.2731, Longitude: -93.4358 In this case, the coordinates for Half Rock have been provided by the Geographic Names Information System (GNIS).
<5>
The calculated bearing (or angle) to Jerusalem is 318.309 degrees.
<6>
The calculated bearing (or angle) to Mecca is 315.551 degrees.
<7>
The calculated bearing (or angle) to the Vatican is 311.855 degrees.