iVillage

Ordered Relative to Ascending Node on Ecliptic

MERCURY
07.0028806° + 06.699”T -0.066”T2

MARS
01.8503333° – 02.43”T +0.0454”T2

URANUS
00.7727222° + 02.00”T

SUN’S EQUATOR
07.25°

VENUS
03.3936306° + 03.621”T -0.0035”T2

JUPITER
01.3086944° – 20.0”T

INVARIABLE PLANE
01.5830556° – 18.0”T

PLUTO
17.1698661°

SATURN
02.4925833° – 16.0”T

NEPTUNE
01.7792499° – 33.0”T

Note: The above epoch for 1900, January 0.5 ET or Julian Day 2415020.0. The time interval from the epoch is denoted by T and is measured in Julian centuries of 36525 ephemeris days. All elements are the MEAN elements for above epoch except elements for Pluto which are osculating elements at the epoch 1950.0 or JED 2433282.423. See note above on Pluto.

Pluto: The orbit of Pluto is still being defined. For purposes of this book it was necessary to select an approximate value for pluto’s motion in a Julian century of 36525 days. The above value was selected although one should realize that this is only an approximation, good to within perhaps a degree of the value listed.