# Errata 2013

#### Time Scales, Section B

• Page B50, Equinox Method of reduction from the GCRS — rigorous formulae

sin ϵ cos ψ sin φ̄ + cos ϵ cos φ̄

• Page B51, Offsets of the Pole and Origin at J2000.0

For F-W IAU 2006, in the column φB

replace 6.891 with 6.819

• Page B54, in the formulae c:

replace $-0.0001\,0415\,5607\ T^3$
with $+2.9710\ \times\ 10^{-8}\ T^3$

and in the formulae c':

replace $-0.0001\,0417\,7728\ T^3$
with $+7.5882\ \times\ 10^{-9}\ T^3$

#### Natural Satellites, Section F

• Page F3, Satellites: Physical and Photometric Data

The V(1,0) values and the V_0 values for I Phobos (Mars) should be reversed.
The V(1,0) values and the V_0 values for II Deimos (Mars) should be reversed.

#### Dwarf Planets and Small Solar System Bodies, Section G

• Page G3, Physical Properties of Dwarf Planets:

In the table header for Maximum Angular Diameter:

replace $\arcmin$ with $\arcsec$

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