The transit of Mercury across the face of the Sun lasts about five hours in all. The greatest transit occurs at 21:41 UT. The chart above shows the Sun in conjunction with Mercury at 21:30 UT. The conjunction of the Sun and Mercury is squaring Neptune and the dwarf planet Ceres.

The Sun, Mercury and some other planets are in parallel aspect. A parallel occurs when the planets are at the same declination. The following data is from Riyal, the last column shows the declination:

Sun	16Sc20'07"	16s43
Mercury	16Sc20'07"	16s50
Venus	19Sc24'36"	17s02
Neptune	17Aq03'44"	15s56
Pluto	25Sa08'40"	16s21
Hylonome	27Sc09'44"	16s13

There is a Yod aspect pattern in the chart involving Venus, Eris and Logos. The apex planet is newly named dwarf planet Eris. Mythological Eris was a goddess of strife. Venus and cubewano Logos sextile each other and both are forming a quincunx (150 degrees) to Eris. The planets involved in a quincunx do not share the same quality or element, and the influence of a quincunx is said to be unpredictable, bringing strain and requiring adjustments. Venus is also opposite Sedna, a trans-Neptunian planet, named after the Inuit goddess of the sea.

NASA - 2006 Transit of Mercury