OFFSET
1,1
COMMENTS
Ratio appearing in the definition of the astronomical magnitude (brightness) scale.
Named after the English astronomer Norman Robert Pogson (1829-1891). - Amiram Eldar, Apr 24 2021
LINKS
G. C. Greubel, Table of n, a(n) for n = 1..10000
Norman Pogson, Magnitudes of Thirty-Six of the Minor Planets for the First Day of Each Month of the Year 1857, Monthly Notices of the Royal Astronomical Society, Vol. 17, No. 1 (1856), pp. 12-15.
Eric Weisstein's World of Mathematics, Pogson's Ratio.
EXAMPLE
2.511886431509580111085032067799...
MATHEMATICA
First[RealDigits[100^(1/5), 10, 200]]
PROG
(PARI) 10^.4 \\ Charles R Greathouse IV, Jan 15 2015
(Magma) 10^(2/5) // G. C. Greubel, Jan 14 2018
CROSSREFS
KEYWORD
AUTHOR
Eric W. Weisstein, Apr 28 2011
STATUS
approved