"Astronomical" Lughnasadh

I quote The Enemy:

In the cross-quarter reckoning of former NASA scientist Robert Gillespie, Northern Lughnasadh occurs when the Sun's ecliptic longitude/Earth's heliocentric longitude reaches 135 degrees.

In 2013 this will occur at 8:21 UTC on August 7.

WARNING:

The following footage is quoted from "Charles Manson: Superstar", a documentary prepared by self-described Satanists and members of the Church of Satan 

(though not Acquino's Temple of Set NATO/NSA/CIA/Processean offshoot (I don't think))

It may contain disinformation, for that reason, but I suspect the information is good and truthful in this case.

Lammastide -

Second most Magickally significant night of the year after Beltane.

A Time of Sacrifice.

The Gathering of the First of the Fruits.

August 8 from Spike1138 on Vimeo.
Lammas Eve - Second most Magickally significant night of the year after Beltane.

Tia Sharp Appeal - 8 August from Spike1138 on Vimeo.
August 8th is also the anniversary of the Hiroshima Bomb and the Sharon Tate Murders at 10050 Cielo Drive.

As well as being (approximately) Lammas Night (depending on the Moon)