The Northern Horizon Star Motion JS model displays how the appearance and motion of the stars near and around the northern horizon change over the course of hours. The specific latitude modeled can be changed with a slider. The north celestial pole (NCP) is shown in yellow and star trails are shown in white.
The Northern Horizon Star Motion JS model was developed using the Easy Java/JavaScript Simulations (EjsS) version 5. It is distributed as a ready-to-run html page and requires only a browser with JavaScript support. This model runs on tablets.
K-2: 4A/P2. The sun can be seen only in the daytime, but the moon can be seen sometimes at night and sometimes during the day. The sun, moon, and stars all appear to move slowly across the sky.
K-2: 4A/P3. The moon looks a little different every day but looks the same again about every four weeks.
4B. The Earth
6-8: 4B/M5. The moon's orbit around the earth once in about 28 days changes what part of the moon is lighted by the sun and how much of that part can be seen from the earth- the phases of the moon.
11. Common Themes
11B. Models
6-8: 11B/M1. Models are often used to think about processes that happen too slowly, too quickly, or on too small a scale to observe directly. They are also used for processes that are too vast, too complex, or too dangerous to study.
NSES Content Standards
Con.D: Earth & Space Science
K-4: Objects in the Sky
K-4: Changes in Earth & Sky
NSES Professional Development Standards
PD.A: Learn Science Content through Inquiry
Active Investigation: Involve teachers in actively investigating phenomena that can be studied scientifically, interpreting results, and making sense of findings consistent with currently accepted scientific understanding.
M. Belloni, Computer Program NORTHERN HORIZON STAR MOTION JS MODEL, Version 1.0 (2015), WWW Document, (https://www.compadre.org/Repository/document/ServeFile.cfm?ID=13419&DocID=4010).
M. Belloni, Computer Program NORTHERN HORIZON STAR MOTION JS MODEL, Version 1.0 (2015), <https://www.compadre.org/Repository/document/ServeFile.cfm?ID=13419&DocID=4010>.
Belloni, M. (2015). Northern Horizon Star Motion JS Model (Version 1.0) [Computer software]. Retrieved October 3, 2024, from https://www.compadre.org/Repository/document/ServeFile.cfm?ID=13419&DocID=4010
Belloni, Mario. "Northern Horizon Star Motion JS Model." Version 1.0. https://www.compadre.org/Repository/document/ServeFile.cfm?ID=13419&DocID=4010 (accessed 3 October 2024).
%A Mario Belloni %T Northern Horizon Star Motion JS Model %D March 6, 2015 %U https://www.compadre.org/Repository/document/ServeFile.cfm?ID=13419&DocID=4010 %O 1.0 %O application/javascript
%0 Computer Program %A Belloni, Mario %D March 6, 2015 %T Northern Horizon Star Motion JS Model %7 1.0 %8 March 6, 2015 %U https://www.compadre.org/Repository/document/ServeFile.cfm?ID=13419&DocID=4010
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1 ready-to-run example is available
1 source code document is available
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