• openAccess   New and improved orbits of some historical comets: 6TH and 7TH centuries 

      Sicoli, Piero; Gorelli, Roberto; Martínez, M.J.; Marco, Francisco J. Academic Press Inc. (2024-09-15)
      Five comets from the 6th century and three from the 7th century are studied. In some cases, new orbital elements are provided, or existing ones are refined to better fit the observations. In addition, comments are presented ...