zodi

plural zodis

1. astronomyA unit of zodiacal dust, equal to the amount of interplanetary dust in the inner solar system, which absorbs light and re-radiates it with a luminosity about 10⁻⁷ that of the sun.

   "... reaching levels below 1 zodi for stars within 10 pc."

   2012, Issues in Astronomy and Astrophysics: 2011 Edition, ScholarlyEditions, →ISBN

   2 more examples

   […] an exozodiacal dust disk with 3 zodis of material has been added. […] Measuring exozodiacal dust to levels of 1 to 10 zodi in the habitable zones of nearby stars is critical […]

   2011, National Research Council, Division on Engineering and Physical Sciences, Space Studies Board, Board on Physics and Astronomy, Committee for a Decadal Survey of Astronomy and Astrophysics, Program Prioritization Panels, Science Frontiers Panels, Panel Reportsâ¬"New Worlds, New Horizons in Astronomy and Astrophysics, National Academies Press, page 294

   […] for a wide range in exozodiacal background levels (epsilon = 1-100 times the local zodi brightness) and overall prevalence […]

   2013, Issues in Astronomy and Astrophysics: 2013 Edition, ScholarlyEditions, →ISBN, page 95