Errata 2011

Time Scales, Section B

• Page A91, Circumstances of the Eclipse:

  Magnitude of greatest eclipse should be 0.9049

• Page B10, Equation of the Equinoxes:

  The first paragraph of the Equation of the Equinoxes portion should read as in the attached PDF.

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

  The term M_3,3 should read
  
  sin ϵ cos ψ sin φ + cos ϵ cos φ

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

  For F-W IAU 2006, in the column φ_B
  
  replace 6.891 with 6.819

• Pages D7-D21 (odd pages):

  Nutation in obliquity was added to the mean inclination in error. This has resulted in errors of ±0°.001 in 162 instances of the physical librations and 6 instances of the total librations. A new version of the physical ephemeris of the Moon for 2011 may be downloaded here.

Stars and Stellar Systems, Section H

• Page H56

  Exoplanet υ And d should be υ And b and Exoplanet υ And b should be υ And d

Notes and References, Section L

• Page L23

  In the table of IAU constants after the fourth paragraph of Section K material, the first value—Light-time for unit distance—should be
  
  499^s.004 783 806 1 (TDB)
  
  The printed value is missing the units symbol and decimal point.