Computer simulations have demonstrated the potential to facilitate this process by highlighting students' misconceptions and presenting plausible scientific conceptions. Thus, it is best to learn astronomy using simulations. Statistical results showed that the academic performance of the respondents improved when taught using the stellarium-based activity. The data pointed out that data analysis results shows that by conventional criteria, the differences of the scores on the different competencies is considered to be extremely statistically significant Results revealed that the stellarium-based activity is effective in teaching the cycles of the sky. The respondents of this study were composed of 28 students. Cabahug FORUM for Literacy, School Year 2017-2018. This study focused on effectiveness of the stellarium-based activity on the academic performance of Grade 11 STEM Strand students of Sotero B. Now, with a growing community and a clean slate to start from, I think Nightshade can really take off.This study was carried out to understand and bring to fore if a simulation-based activity is effective on the academic performance of the students which has a general outlook to enhance meaningful science learning. “We bear no ill will towards the Stellarium project, but for many reasons we feel this is the only way to guarantee that the needs of the planetarium community will be listened to. “A fork is always a difficult situation in the open source world,” said Robert Spearman, Digitalis President and co-founder. While Digitalis worked closely with the Stellarium project, it became necessary to start a new open source community project. Users of the open source application can view far-off moons, zoom in on planets and trace orbits and trails. “Nightshade renders over 100,000 stars in stunning realism and in situ images of deep sky objects of note, including many Hubble Space Telescope images.” “Nightshade offers a realistic simulation of the sky when and where the user chooses,” according the press statement.

announced today the official launch of the open source astronomy and visualization software Nightshade.

Open source planetarium software