https://stemin3d.uga.edu/ 2026-04-08T08:17:43+00:00 https://stemin3d.uga.edu/ https://stemin3d.uga.edu/_media/favicon.ico text/html 2024-08-26T14:36:09+00:00 Anonymous (anonymous@undisclosed.example.com) https://stemin3d.uga.edu/topics/asteroids?rev=1724682969&do=diff neo pha asteroid <title>Near Earth Objects (NEOs) & Potentially Hazardous Asteroids (PHAs)</title> Introduction Some intro reading materials about NEOs and PHAs. * NEO Survey Act * CNEOS * Read “NEO Basics” * There are other useful info in this website including: (1) NEO orbit into, (2) impact risk, (3) discovery statistics, (4) recent flybys ( text/html 2024-08-26T14:36:09+00:00 Anonymous (anonymous@undisclosed.example.com) https://stemin3d.uga.edu/topics/c_template?rev=1724682969&do=diff <title>Dummy Title</title> General Description of the Simulation TBA Important pending tasks (or notes/ideas) to complete the simulation. * Task 1 * Task 2 * ... Prerequisites These are technical prerequisites (3D model components) to create this simulation. text/html 2024-12-06T16:06:38+00:00 Anonymous (anonymous@undisclosed.example.com) https://stemin3d.uga.edu/topics/coords?rev=1733501198&do=diff celestial_coordinate virtual_night_sky Developing the Celestial Sphere Platform (i.e., Virtual Night Sky) The main goal for this topic is to develop a platform for simulating a realistic night sky in Unity or Unreal Engine. The virtual night sky can be used in a handful of other simulations such as 'diurnal motions of celestial objects', 'seasonal constellations', 'time and calendar', etc. text/html 2024-08-26T14:36:09+00:00 Anonymous (anonymous@undisclosed.example.com) https://stemin3d.uga.edu/topics/cosmic_scale?rev=1724682969&do=diff important, but can be challenging to show how an animation is clearly superior to a simple diagram text/html 2024-08-26T14:36:09+00:00 Anonymous (anonymous@undisclosed.example.com) https://stemin3d.uga.edu/topics/diurnal?rev=1724682969&do=diff diurnal_motion Diurnal Motion of the Celestial Objects Celestial objects show various motions on the projected sky plane due to the motions of the Earth (rotation, orbital motion, etc.). This topic describes the apparent motions of celestial objects due to the Earth's rotation (diurnal motion). text/html 2024-08-26T14:36:09+00:00 Anonymous (anonymous@undisclosed.example.com) https://stemin3d.uga.edu/topics/doppler?rev=1724682969&do=diff doppler Doppler Effect General Description of the Simulation In this simulation, we can simulate the Doppler Effect with (1) sound and (2) color of light. * We can create a sound with different frequency based on the relative speed between the source and observer. text/html 2024-08-26T21:46:46+00:00 Anonymous (anonymous@undisclosed.example.com) https://stemin3d.uga.edu/topics/eclipse?rev=1724708806&do=diff eclipse Simulating Solar/Lunar Eclipse Using accurate ephemeris of the Sun, Earth, and Moon, we can simulate both solar and lunar eclipses of the past and future. Using real images of the Sun/Earth/Moont layered as textured images in a 3-D model, the simulation can show realistic eclipses as seen by an observer in space. By allowing a user to choose (1) the observation date and (2) the location of the viewing camera, we will allow students to explore the environment of the eclipse phenomenon s… text/html 2024-08-26T14:36:09+00:00 Anonymous (anonymous@undisclosed.example.com) https://stemin3d.uga.edu/topics/evolution?rev=1724682969&do=diff There are plenty of diagrams showing the evolution of 0.5, 1, 2, 5 10, 30 solar mass stars, we just need to animate them. text/html 2024-08-26T14:36:09+00:00 Anonymous (anonymous@undisclosed.example.com) https://stemin3d.uga.edu/topics/gal_center?rev=1724682969&do=diff There should be publicly accessible, real astronomy images of the Galactic Center. We can make an animation out of these images showing stars flying around the G.C. (super massive blackhole). If we can do more challenging task, we can recreate the environment in 3D game engine with identified stars that are moving fast. By changing the mass of the blackhole, we can change the speed. text/html 2024-08-26T14:36:10+00:00 Anonymous (anonymous@undisclosed.example.com) https://stemin3d.uga.edu/topics/hubble?rev=1724682970&do=diff important, but can be challenging to show how an animation is clearly superior to a simple diagram text/html 2024-08-26T14:36:10+00:00 Anonymous (anonymous@undisclosed.example.com) https://stemin3d.uga.edu/topics/landscapes?rev=1724682970&do=diff this is a low priority because 1) it is more of a gee-whiz project rather than one that addresses one or more understanding or misconception issues, and 2) the landscapes of the inner planets vary widely, at least for Venus, Mars, and Earth. text/html 2024-09-11T18:57:02+00:00 Anonymous (anonymous@undisclosed.example.com) https://stemin3d.uga.edu/topics/lunar_phase?rev=1726081022&do=diff moon llunar_phase Latitude Dependent Lunar Phase Shapes. General Description of the Simulation The orientation of the lunar phase shape to the horizon (i.e., the position angle of the lunar shape) can tell us about the observer's geographic latitude. Therefore, from the photo of the various lunar shapes, students can estimate the location (latitude) of the observer. This is a simple 3-D representation of the relative positioning of the Sun, Earth, Moon, and the location of the Observer. text/html 2024-08-26T14:36:10+00:00 Anonymous (anonymous@undisclosed.example.com) https://stemin3d.uga.edu/topics/meteor_shower?rev=1724682970&do=diff Meteor Shower General Description of the Simulation The nature of meteor shower (crossing of the dust trails [former cometary orbits] with the Earth's orbit). 3-D nature of the phenomenon: not every cometary passage causes meteor showers. Need a right crossing. text/html 2025-08-25T14:51:40+00:00 Anonymous (anonymous@undisclosed.example.com) https://stemin3d.uga.edu/topics/orbits?rev=1756133500&do=diff orbit gravity reflex orbital_elements Orbital Motions General Description of the Simulation In this module, we can provide three sets of related simulations to teach students the following topics. * Shapes of orbits: * For a given gravity (hence the mass of the central star), based on the velocity of the secondary, various shapes of orbits are determined: elliptical (including circular), parabolic, and hyperbolic). Simulate these shapes with a range of $V$$a$ text/html 2024-08-26T14:36:10+00:00 Anonymous (anonymous@undisclosed.example.com) https://stemin3d.uga.edu/topics/parallax?rev=1724682970&do=diff pallax Parallactic Motions General Description of the Simulation We can simulate the parallactic motion. * the nature of the parallactic motion (Earth's orbital motion) * magnitude of the motion as a function of distance * the shape of the motion is dependent on the viewing direction (ecliptic latitude). text/html 2024-08-26T14:36:10+00:00 Anonymous (anonymous@undisclosed.example.com) https://stemin3d.uga.edu/topics/pollution?rev=1724682970&do=diff light polution <title>Simulation of Light Pollution</title> These are important pending tasks/notes for this simulation. * Task 1 * Task 2 * ... Prerequisites The following prerequisites must be available to create this simulation. * simulation of the night sky with horizon text/html 2024-08-26T14:36:10+00:00 Anonymous (anonymous@undisclosed.example.com) https://stemin3d.uga.edu/topics/precession?rev=1724682970&do=diff precession zodiac <title>Precession and Change of Zodiac Signs</title> General Description of the Simulation Due to the precession of the Earth orbital plane, the reference point of the Equatorial Coordinate, Vernal Equinox, marches across the celestial sphere. This causes the change of Right Ascension of celestial objects hence the change of zodiac signs in every 2,000 years. This simulation describes this phenomenon. text/html 2024-08-26T14:36:10+00:00 Anonymous (anonymous@undisclosed.example.com) https://stemin3d.uga.edu/topics/radiation?rev=1724682970&do=diff guess we could show a blackbody with temperatures that would carry it from about 3000 K to 30000 K (cooler might not be visible; higher just starts looking bluer and bluer) and as the color changes, an accompanying graph shows the curve increasing in size with the peak shifting to bluer wavelengths. text/html 2024-09-10T15:53:45+00:00 Anonymous (anonymous@undisclosed.example.com) https://stemin3d.uga.edu/topics/retrograde?rev=1725983625&do=diff Retrograde Motion of Mars General Description of the Simulation Use Unity to create a simulation involving relative motion for the Sun, Earth, and Mars. After creating orbits for Earth and Mars, one can place a camera on Earth pointing toward Mars. Then, against the background sky, Mars will show a retrograde motion around the opposition of Mars. text/html 2024-09-06T16:37:57+00:00 Anonymous (anonymous@undisclosed.example.com) https://stemin3d.uga.edu/topics/seasonal_constellation?rev=1725640677&do=diff celestial_sphere Seasonal Constellations By using the scripted simulation of celestial sphere, we can create a 3D simulation that illustrates the concept on the seasonal constellations. It may be necessary to explain the Earth's orbital motion along the Ecliptic and the concept of seasons beforehand. Then, because of the position of Earth on Ecliptic, only the nightside objects are visible hence the origin of the seasonal objects/constellations. text/html 2024-09-30T20:50:47+00:00 Anonymous (anonymous@undisclosed.example.com) https://stemin3d.uga.edu/topics/solar_cycle?rev=1727729447&do=diff sun solar_cycle Solar Activity Cycle Assigned to Nick (on 01/22/2024) General Description of the Simulation <https://svs.gsfc.nasa.gov/3505>differential rotationSOHO [A sequence of synoptic solar images] For this project, we should be able to download a set of synoptic (i.e., rotation-corrected) images of the Sun. <https://proba2.sidc.be/Synoptic-observations> can be a good place to obtain relevant images. Then, use these images (one at a time) to lay down a texture on a Blender-cr… text/html 2025-01-31T17:18:13+00:00 Anonymous (anonymous@undisclosed.example.com) https://stemin3d.uga.edu/topics/solar_model?rev=1738343893&do=diff sun solar <title>Photorealistic Model of the Sun</title> General Description of the Simulation Check the commercial model of the photorealistic Sun here Important pending tasks (or notes/ideas) to complete the simulation. * Task 1 * Task 2 * ... Prerequisites text/html 2024-11-22T02:54:28+00:00 Anonymous (anonymous@undisclosed.example.com) https://stemin3d.uga.edu/topics/ss_overview?rev=1732244068&do=diff solar_system Solar System Current status: Look at the following video of the screen recording by Ridwan from the Blender simulation session of the Solar System objects' orbital motions. ---------- Check AR Solar System <https://www.youtube.com/watch?v=0rrDHIDpxoU> which can place a SS planet on any real world flat surface. text/html 2024-08-26T14:36:10+00:00 Anonymous (anonymous@undisclosed.example.com) https://stemin3d.uga.edu/topics/ss_scale?rev=1724682970&do=diff Demonstration of the True size scale of the Solar System (SS) General Description of the Simulation When correct scales (for distances among SS objects and their radii) are used in any modeling of the Solar System, planets are invisible. In this simulation, to demonstrate the vast space among SS objects, we can create a simulation with a range of the radius scale for a fixed distance scale. Starting with the true scale, increase the size scale to a large value (up to several million). We can… text/html 2024-08-26T14:36:10+00:00 Anonymous (anonymous@undisclosed.example.com) https://stemin3d.uga.edu/topics/star_formation?rev=1724682970&do=diff worth doing, but the problem is how. We can't do our own MHD simulation, and if we animate someone else's (or use their animation), we need their permission. text/html 2024-08-26T14:36:10+00:00 Anonymous (anonymous@undisclosed.example.com) https://stemin3d.uga.edu/topics/telescope?rev=1724682970&do=diff Simulate the effect of changing telescope aperture size from the diffraction-limited simulated PSF image. We can add realistic noises, atmosphere effects, etc. part of this should be ray tracings showing the various light paths text/html 2024-08-26T14:36:10+00:00 Anonymous (anonymous@undisclosed.example.com) https://stemin3d.uga.edu/topics/time?rev=1724682970&do=diff time calendar Astronomical Time and Calendar This simulation covers the astronomical times and calendar systems. From this simulation, one can understand the difference between sidereal and synodic times by using the position of a prominent object such as the Moon moving around the Earth.