Moodami or Moodam or Lop is an inauspicious period during which no shubh karya or auspicious program or function can be performed. In 2013-2014, there is one Guru Moodam period and two Shukra Moodami periods.
There are two types of Moodam in Hindu Astrology – Guru Moodam or Guru Moodami or Guru Lop and Shukra Moodam or Shukra Moodami or Shukra lop.
Guru Moodami period in 2012-2013
30 April 2012: Guru Moodam begins
29 May 2012: Guru Lop ends
Shukra Moodam period in 2012-2013
Shukra Lop 1:
1 June 2012: Shukra Lop begins
10 June 2012: Shukra Lop ends
Shukra Lop 2:
22 February 2013: Shukra Moodam begins
23 April 2013: Shukra Lop ends
Guru Moodam in 2013-2014
Guru Moodam begins on 6 June 2013 (Trayodasi in Vaishakha Month / Jyeshta Month) and ends on 8 July 2013 (Jyeshta Amavasya / Ashada Amavasya)
Shukra Moodami in 2013-2014
As per some Panchangams, Shukra Moodam / Shukra Lop ends on 2 May 2013 (Shukla Paksha Saptami in Chaitra Month).
The next Shukra Lop begins on 6 January 2014 (Shukla Paksha Sashti in Poush Month) and ends on 16 January 2014 (Paush Purnima).
Moodami means the darkness in Sanskrit. When the grahas (planets) Brihaspati or Guru (Jupiter) and Shukra (Venus) near the Sun (Surya), the Moodami occurs. The planet which nears the Sun loses its energy and power. The darkness occurs in the time of planetary motion.
Shukra moodam occurs when Shukra graha (the planet of Venus) reaches close to Sun, loses its energy and strength and becomes malefic and inauspicious.