[color=#999999]This activity belongs to the [i]GeoGebra book[/i] [url=https://www.geogebra.org/m/uT3czZnE]Earth and Sun[/url].[br][br][br][color=#999999][color=#999999]This construction includes the representation of the 88 constellations.[/color][/color][br][br][color=#999999]For better execution, and to be able to scale the sphere, it is recommended to [url=https://www.geogebra.org/material/download/format/file/id/sn3dpwqu]download the GGB file[/url].[/color][/color]

[color=#999999]Author of the construction of GeoGebra: [color=#999999][url=https://www.geogebra.org/u/rafael]Rafael Losada[/url]. The Right Ascension and Declination data for each star have been collected from: [url=https://www.geogebra.org/material/iframe/id/eehdnh2w]https://www.geogebra.org/material/iframe/id/eehdnh2w[/url] (see https://mathed.miamioh.edu/index.php/ggbj/article/view/189/157)[/color][/color]