International Journal of Astrophysics and Space Science

Volume 11, Issue 2, June 2023

  • Research Article

    Attitude Estimation of H2A Rocket Body from Light Curve Measurements

    Alessandro Vananti, Yao Lu, Thomas Schildknecht

    Issue: Volume 11, Issue 2, June 2023
    Pages: 15-22
    Received: 18 September 2023
    Accepted: 12 October 2023
    Published: 28 October 2023
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    Abstract: The knowledge of the attitude motion of space debris is relevant for active debris removal missions. One possibility to characterize the attitude of space objects consists in the acquisition of photometric measurements over time, called light curves. The observed object is illuminated by the Sun and the variation of its apparent brightness gives in... Show More
  • Research Article

    Protoplanetary Disk Formation in a Self-gravitating Molecular Cloud

    Gemechu Muleta Kumssa*, Solomon Belay Tessema

    Issue: Volume 11, Issue 2, June 2023
    Pages: 23-37
    Received: 19 October 2023
    Accepted: 2 November 2023
    Published: 30 November 2023
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    Abstract: The formation of the protoplanetary disc is a crucial step in planetary system formation. The study of protoplanetary disk formation is important for understanding the origins of our solar system as well as planets orbiting other stars. Many studies of protoplanetary disc formation focus on the initial properties of the planetary disc, such as mass... Show More