Moon measurments tools

This is called an indirect measurement. Now measure the height of the object directly with your measuring tape. How well did the Handy Measuring Tool method work?

Calculate your error: Find the difference between the height you found indirectly and the height you measured directly. Divide this difference by the actual measured height of the object. Multiply this quotient by to get percent error.

What angle is swept out by your hand when your fingers are extended? Using the same procedure, find the ratio for your fist-to-arm length ratio. Will it be a larger or smaller ratio than the extended hand-to-arm length ratio? Measure the length of your arm length in fists do not include your thumb when your arm is extended at shoulder height.

Be careful not to roll your fist along your arm. What is the ratio of height of your fist to length of your arm? Most people have a ratio. Close one eye and look down your straightened arm to locate an object that you can just cover with your fist.

The top of the object should just line up with the top of your fist, and the bottom of the object should just line up with bottom of your fist. Make sure you are facing the object and keeping your elbow straight. The ratio changes if you bend your arm. Calculate your error: Find the difference between the height you found indirectly and the height you actually measured. What angle is swept out by your fist?

Hint: Compare your fist to something known, like your extended hand, or to a known angle. Two similar triangles are created; one is embedded within the other. These heights and distances are proportional:.

A geometric proof of why this works can be shown using similar triangles click to enlarge the diagram below. Early Apollo Scientific Experiments Package.

Apollo 12 Mission Type lander. Apollo Lunar Surface Experiments Package. Cameras-various; one mm Hasselblad electric camera, two Hasselblad data cameras, two mm Maurer data acquisition cameras, one mm lunar surface stereoscopic closeup camera, a four-camera, multispectral, S experiment.

Apollo 13 Mission Type orbiter. Earth Photography applied to Geosynchronous Satellites. Apollo 14 Mission Type lander. Cameras-various; two millimeter still cameras with multiple lenses, one millimeter camera with four lenses, and the Lunar Topographic camera were carried on command module; landing module carried two millimeter cameras with millimeter lenses.

Charged Particle Lunar Environment Experiment. Mass analyzer determined ion flux in 20 mass channels from 6 - amu for 6 energies; total ion detector detected higher energy ions in 20 steps over 10 - eV. Apollo 15 Mission Type lander. Apollo 16 Mission Type lander. Apollo 17 Mission Type lander. Lunar Atmospheric Composition Experiment.

Artemis Mission Type orbiter. Chandrayaan 1 Mission Type orbiter. Chandrayaan-1 Imaging X-ray Spectrometer. Chang'e 1 Mission Type orbiter. Chang'e 2 Mission Type orbiter.

Chang'e 3 Mission Type lander. Clementine Mission Type orbiter. Laser Image Detection and Ranging System. FOV 28 by 43 degrees, entrance pupils 14 mm in diameter, bandpass filters of 0.

Galileo Mission Type fly by. Hagoromo Mission Type orbiter. Hiten Mission Type orbiter. Kaguya Mission Type orbiter. Plasma energy Angle and Composition Experiment.

Relay Satellite and Main Orbiter Transponder. Lunar Crater Observation and Sensing Satellite. LRO Mission Type orbiter. Cosmic Ray Telescope for Effects of Radiation. Moon Azimuth Shadow Length Geo data for the selected location.

More lunar data. Submit your questions, suggestions and criticisms here: Your e-mail address: Your first and last name: Your Request:. The moon on the time slider can be moved by mouse or with the arrow keys of the keyboard API to link to this page! API for developers. More for Sun Planets Satellites. The same for the sun can be found here: suncalc. The same for the planets can be found here: planetscalc. You can find the positions of satellites here: orbtrack. Thank you. Legal Disclosure Privacy Policy Cookies.