A292525 Decimal expansion of the length of a parsec in meters, as defined in 2015.

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

Offset

17,1

Comments

Before its redefinition in 2015, a parsec was defined as the distance at which one astronomical unit subtends an angle of one arcsecond, which yielded the slightly different value of 1 au/tan(Pi/(180*3600)), cf. A248424.

Links

Table of n, a(n) for n=17..111.

Formula

1 pc = 1 au * (3600*180 / Pi) = 30 856 775 814 913 672.789... m, since 1 au = 149597870700 m.

Equals A217572 * A163103.

Mathematica

First[RealDigits[149597870700*648000/Pi, 10, 100]] (* Paolo Xausa, Apr 29 2024 *)

Prog

(PARI)  149597870700*648000/Pi

Crossrefs

Cf. A248424 (pre-2015 definition), A163103, A217572, A248645.

Sequence in context: A223854 A333567 A248424 * A275975 A201665 A137204

Adjacent sequences: A292522 A292523 A292524 * A292526 A292527 A292528

Keyword

nonn,cons

Author

M. F. Hasler, Sep 18 2017

Status

approved