A155970 Decimal expansion of the conversion factor of arcseconds to radians.

0, 0, 0, 0, 0, 4, 8, 4, 8, 1, 3, 6, 8, 1, 1, 0, 9, 5, 3, 5, 9, 9, 3, 5, 8, 9, 9, 1, 4, 1, 0, 2, 3, 5, 7, 9, 4, 7, 9, 7, 5, 9, 5, 6, 3, 5, 3, 3, 0, 2, 3, 7, 2, 7, 0, 1, 5, 1, 5, 5, 8, 2, 5, 5, 3, 1, 7, 7, 8, 2, 5, 2, 8, 0, 3, 0, 9, 6, 1, 2, 0, 6, 9, 2, 8, 9, 9, 1, 1, 7, 3, 3, 7, 6, 9, 3, 4, 2, 9, 1, 9, 3, 0, 0, 6

Offset

0,6

Comments

One arcsecond is a popular astronomic angular unit, 1/3600 of a degree.

Links

Table of n, a(n) for n=0..104.

Index entries for transcendental numbers

Formula

A019685/3600.

Example

Equals 4.8481368110953599358..*10^(-6).

Maple

evalf(Pi/180/3600);

Mathematica

Join[{0, 0, 0, 0, 0}, RealDigits[Pi/648000, 10, 120][[1]]] (* Harvey P. Dale, Apr 04 2015 *)

Prog

(PARI) Pi/648000 \\ Charles R Greathouse IV, Sep 08 2011

Crossrefs

Cf. A217572 (inverse). - Stanislav Sykora, Feb 04 2014

Sequence in context: A195289 A247318 A019838 * A348573 A010713 A105398

Adjacent sequences: A155967 A155968 A155969 * A155971 A155972 A155973

Keyword

cons,easy,nonn

Author

R. J. Mathar, Jan 31 2009

Status

approved