# Orbital Decay

**URL:** <https://boards.straightdope.com/t/orbital-decay/287446>\
**Category:** Factual Questions\
**Created:** [January 30, 2005, 5:25pm UTC](https://boards.straightdope.com/t/orbital-decay/287446 "2005-01-30T17:25:26Z")\
**Posts on this page:** 1\
**Page:** 2

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**Author:** ![David\_Simmons](https://avatars.discourse-cdn.com/v4/letter/d/9de053/32.png) [@David\_Simmons](https://boards.straightdope.com/u/David_Simmons)\
**Post date:** [February 1, 2005, 5:28pm UTC](https://boards.straightdope.com/t/orbital-decay/287446/21 "2005-02-01T17:28:41Z")

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Let’s try that again. Multiply both of the above velocities by 2 for the correct numbers. :smack:

Mumbles to self while writing on the blackboard 100 times - Circumferance is **two** times pi times radius.

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