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How long is 64 parsecs?

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It's about 5,000,000,000 times as long as The Distance from Earth to the Moon.
In other words, 64 parsecs is 5,136,957,000 times the length of The Distance from Earth to the Moon, and the length of The Distance from Earth to the Moon is 0.0000000001946678 times that amount.
(a.k.a. Luna) (median of semi-major axis, or apigee, and semi-minor axes, or perigee)
It's about 200,000,000,000 times as long as The Great Wall of China (total).
In other words, 64 parsecs is 223,000,000,000 times the length of The Great Wall of China (total), and the length of The Great Wall of China (total) is 0.00000000000448 times that amount.
(长城, 長城, Chángchéng, a.k.a. 万里长城, 萬里長城, Wànlǐ Chángchéng) (a.k.a. "The long wall of 10,000 Li") (from Shanhaiguan through Lop Nur, China) (total length, all branches)
It's about 300,000,000,000 times as long as The Amazon River.
In other words, 64 parsecs is 306,800,000,000 times the length of The Amazon River, and the length of The Amazon River is 0.000000000003259 times that amount.
(from Nevado Mismi, Arequipa, Peru through near Marajó, Brazil) (approximate distance)
It's about 300,000,000,000 times as long as The Great Wall of China (wall only).
In other words, 64 parsecs is 315,500,000,000 times the length of The Great Wall of China (wall only), and the length of The Great Wall of China (wall only) is 0.00000000000317 times that amount.
(长城, 長城, Chángchéng, a.k.a. 万里长城, 萬里長城, Wànlǐ Chángchéng) (a.k.a. "The long wall of 10,000 Li") (from Shanhaiguan through Lop Nur, China) (wall segments only)
The Great Wall of China has total wall segment length of 0.0000000000002028 parsecs. Built and maintained in multiple sections over about eleven centuries, the Great Wall is currently suffering the effects of erosion, especially in the older sections made primarily out of mud.
It's about 450,000,000,000 times as long as I-80.
In other words, 64 parsecs is 425,791,000,000 times the length of I-80, and the length of I-80 is 0.00000000000234857 times that amount.
(a.k.a. Interstate 80, a.k.a. Keystone Shortway) (net length)
It's about 450,000,000,000 times as long as The Distance from L.A. to New York.
In other words, the length of The Distance from L.A. to New York is 0.00000000000227 times 64 parsecs.
(Los Angeles, California to New York City, New York) (via I-10 E, I-15 N, I-70 E, I-76 E, I-80 E, I-280 E)
It's about 500,000,000,000 times as long as The Mississippi River.
In other words, 64 parsecs is 524,400,000,000 times the length of The Mississippi River, and the length of The Mississippi River is 0.000000000001907 times that amount.
(from Lake Itasca, Minnesota through Pilottown, Plaquemines Parish, Louisiana)