1 / 19

Characterizing LROC NAC Images

Created by: Belfry High School. Characterizing LROC NAC Images. Participants. Taylor Runyon Mickayla Walters Sarah Compton Staci Coleman Brianna Sullivan. Our Purpose.

cheri
Download Presentation

Characterizing LROC NAC Images

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Created by: Belfry High School Characterizing LROC NAC Images Participants • Taylor Runyon • Mickayla Walters • Sarah Compton • Staci Coleman • Brianna Sullivan

  2. Our Purpose Our purpose of doing this project is to understand morphology and the composition of the Tycho Crater and add to our knowledge of the moon. It’s important to understand the morphology and composition of the moon’s craters so we know how our planets and other aspects of the universe came to be.

  3. Our Project • During this power point presentation, we are going to explain our examinations of LROC NAC simple craters. Aspects included in the presentation are • Diameter • Depth • Diameter/Depth • Slope of crater wall • We are also going to describe the crater’s wall and answer the questions below • Does the craters have boulders? • If so, what are the boulder’s size? • Can something be said about the regolith based on boulder size and trail behind the boulder?

  4. Continued • During this power point we are also going to describe the crater floor, including • Impact Melt • Flat • Boulders • Size of boulders We are also going to identify whether the craters are located on mare or highlands.

  5. Characteristic Explanation of the Tycho Crater Before After Diameter- red Depth- blue Slope- yellow

  6. Diameter How to Determine the Diameter of a Crater The diameter of an object is defined as any straight line segment that passes through the center of a circle and whose endpoints are on the circle. Clearly the Ejecta of the Tycho Crater is not a circle, but it’s still possible to find the diameter. Using Image J, a program that helps us figure the accurate measures, we first set a scale for the size of the picture compared to the actual size of the crater itself. Then, we use the line selection tool and trace a straight line from edge to edge through the center of the circle. Lastly, by clicking the option “analyze” we can have accurate measures of the diameter. After following these steps, we came to find that the diameter of this ejecta of the crater is 1.667 km.

  7. The depth of an object is defined as a dimension taken through an object or body of material, usually downward from an upper surface, horizontally inward from an outer surface, or from top to bottom of something regarded as one of several layers. Since we can’t actually go to the moon and measure the depth of the Ejecta of the Tycho crater, we just measured the diameter of the shadow to find the depth. We found the depth to measure .894 km. D E P TH The depth The depth

  8. Finding the slope of the Tycho Crater Finding slope was perhaps the more challenging characteristic to find. Slope is defined as rise/run. To find this characteristic we measured the length and width of the shadow which will project the rise and run of the ejecta of the Tycho Crater. We found that the slope was -.5 km by taking the rise, .66 km, and dividing it by the run, 1.29 km. The line of the slope runs downward so the slope would be negative. Slope -.5 km A= .66km B= 1.29km

  9. The Crater Floor • 1.667 km diameter • Impact melt is when rocks were heated to high temperatures during contact, and melted when it did contact the moon. The melted rock flowed across the floor of the moon. • Impact melt flowed downhill, and pooled. Floor of the Tycho Crater

  10. The Crater’s Location The Tycho crater is located in the southern highlands. The southern highlands are areas on the moon with higher elevation and lighter in color. This area on the moon is populated with many craters, such as the Tycho crater. * Red indicates location of crater

  11. The Crater Wall • - There are not any boulders on the crater wall. • The walls of the crater are just terraced. • There are also central mountains which are easily viewed be binoculars. • The wall is also sloping down to rough floor. The Tycho Crater Wall The

  12. The Range of Crater Diameters Largest Diameter: 31 km Smallest Diameter: 3 km 31-3=28 km The range of the diameters is 28 kilometers. A presence of crypto-mare unit at a depth of 10 kilometers estimates that there may possibly be a depth-diameter relationship.

  13. We took the latitudes and longitudes of each crater, and put the coordinates on the Microsoft Excel program. Then on earthpoint.us . This website allows us to take our coordinates of surrounding craters, and markers are placed at the exact location of each crater with a label. Step1

  14. Step 2

  15. Patterns in Tycho Crater Surrounding the Tycho crater, are craters of various size. Smaller craters surrounding the Tycho are secondary craters. Secondary craters formed from larger chunks of the Tycho Crater’s ejecta. Secondary craters are impact craters formed by the ejecta that was thrown out of a larger crater. They sometimes form radial crater chains. -It’s a Copernican crater due to its well developed ray pattern. Rays reach up to 1,500 kilometers. Sections of these rays can still be observed when Tycho is illuminated only by earthlight. An example of moon rays Craters of various size is shown above

  16. Mineralogy • Lava ponds found near the Tycho crater contain rich Ca-pyroxene. • The Tycho Crater contains an average titanium content. • Plagioclase rich blocks Pyroxene sample A titanium concentration map of the moon

  17. Features • -Conspicuous central peak • -Wall • -Rim • -Ejecta blanket • -Volcanic activity leading to modifications of central peak • Lava pond • -Pyroclastics • -Basalts

  18. Formation • The Tycho crater is relatively young with an estimated age of 108 million years. • It’s age suggests that the impactorbelongs to the Baptistina family of asteroids. • There’s also a 70% possibility that the Tycho crater was created by a fragment that created Chicxulub Crater on Earth 65 million years ago which is believed to be the extinction of the dinosaurs. Tycho Crater Chicxulub Crater Scientists think that both of these craters are formed from the same asteroid fragment.

  19. Acknowledgments We would like to thank a few people before ending this project… -Dr. HaridasChandran (Doc) -Mr. Gannon -All our teachers for giving us the knowledge and support -Andrew Shaner -Justin Filiberto -NASA, for inspiring us. Lastly, we would like to thank our parents for allowing us to follow through with this project.

More Related