Numbers and Distances

From Swarm Cycle Wiki
Jump to navigationJump to search

(Copied straight from .XML 'backup' file, needs formatting and corrections. ZM User (talk) 20:15, 22 April 2024 (PDT))

(Some of this is subject to argument, but most either came from astronomy texts or published stories or was used in stories, so they are all pretty much set -ZM)

Significant Distances

Earth's radius is r=3959 miles or 6,371 kilometers

~240,000 miles (385,000 Km) - Moon's average orbital distance (varies a lot!)
Earth-Moon L2 is +37,000 miles, still barely, usually, inside transporter range.
~250,000 miles (~400,000 Km) - Sa'arm ESP range
300,000 miles or ~480,000 Km - Transporter Range
~830,000 Km - HEZ for Earth-Moon double planet

~3,400,000 Km - Jupiter's HEZ

Light mover 186K miles/sec, or 300K Kilometers/sec.
1 l-m is ~18 M Km
1 AU (Earth's orbital radius) is ~ 150 M Km, ~500 light-seconds, or 8.3 l-m


Earth is 1AU, Mars 2AU, Jupiter 5AU, Saturn 10AU, Uranus 20AU, Neptune 30AU, minor planets out to 100AU

Sun 99.86 of system mass, 4 gas giants 99% of the remaining 0.14% (J & S are more than 90%), leaving ~0.0015% of system mass for all the rocks.

If a Castle does 7100 times the speed of light, that's ~ 19.4 ly/day, 0.81 ly/hour, or 1 ly every 74 minutes.  It's just shy of 15 AU per second (exactly 14.7)




(Someday this will be a navigation template.  It will provide a bar across the bottom of each article with useful navigation links.  Until then, this is just a placeholder to get rid of all the red "broken link" indicators. -ZM User (talk) 10:00, 3 May 2024 (PDT))