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A230979
Decimal expansion of the time taken by light to travel one astronomical unit in a vacuum, measured in seconds.
3
4, 9, 9, 0, 0, 4, 7, 8, 3, 8, 3, 6, 1, 5, 6, 4, 1, 1, 9, 1, 3, 4, 7, 1, 1, 5, 2, 0, 9, 9, 4, 9, 6, 7, 7, 9, 2, 0, 1, 8, 3, 0, 3, 5, 4, 2, 5, 1, 2, 7, 3, 3, 9, 2, 6, 0, 8, 1, 6, 2, 2, 7, 7, 3, 8, 4, 5, 7, 6, 4, 9, 9, 2, 5, 2, 6, 9, 3, 0, 0, 8, 0, 4, 0, 9, 1, 6, 0, 9, 2, 6, 9, 2, 3, 6, 5, 1, 9, 6, 1, 9, 1, 8, 2, 6, 8
OFFSET
3,1
COMMENTS
Decimal expansion of 149597870700/299792458 = 1024642950/2053373.
Has period 880014 since a(5). - Jianing Song, Jul 25 2022
FORMULA
EXAMPLE
au = 149597870700 meters. c = 299792458 meter/second.
au/c = 499.00478383615641191347115209949677920183035425127339... seconds.
PROG
(PARI) 149597870700/299792458. \\ To get a comma separated list of digits, use digits(%\.1^N), where N must be strictly less than the realprecision setting: e.g., %\.1^default(realprecision) yields an error due to insufficient precision. - M. F. Hasler, Sep 20 2017
CROSSREFS
KEYWORD
nonn,cons,easy
AUTHOR
Omar E. Pol, Nov 03 2013
STATUS
approved