411 REFERENCE · Wiktionary
Airy-0
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Etymology
From Airy Crater, the larger crater this smaller crater is located within, and 0° of the prime meridian. Named after en George Biddell Airy, a British astronomer who helped establish the Greenwich Meridian as the Prime Meridian on Earth.
Proper noun
A crater on Mars, located within the larger Airy Crater, used as the determining landmark for the Martian prime meridian.
Derived terms
en Airy Mean Time en AMT