Habitable Zone Planets
Visualization tool based on current astronomical estimates.
1. The Universe
Number of Galaxies
Estimates range from 200 billion to 2 trillion.
Default:
2 Trillion (Conselice et al., 2016)
Stars per Galaxy (Average)
Milky Way has 100-400 billion.
Default:
200 Billion (Conservative Avg)
Planets per Star
Average number of planets per star.
Default:
1.0 (Kepler Consensus)
Habitable Zone Rate (0.0 - 1.0)
Percentage of planets in the "Goldilocks" zone.
Default:
0.37 (37% - NASA/SETI 2020 Estimate)
Current Estimate: --
2. The Marker (Penny)
Diameter (mm)
US Penny diameter.
Thickness (mm)
US Penny thickness.
1 Penny Stacking Volume: --
3. The Target Area
Land Area (Square km)
Area to cover (Default: Continental US).
Calculate Stack Depth
Total Habitable Zone Planets
--
Height of Penny Stack
--
Over the entire target area