Neelaamjana Samaabhaasam Raviputram Yamagrajam Chchaaya maarthanda samboothm tham namaami Shanishwaram
Rahu Mantra
Ardhakaayam mahaveeryam chandradithya vimardhanam Sinhigaagarbha sambootham tham raahum pranamamyaham
Ketu Mantra
Palashapushpa sankasham taaragagraha masthakam Raudram raudrathmakamkhoram tham kethum pranamamhyaham
Chanting the mantra and lighting the dhoop in the 1st, 8th, 15th and 22nd hour after sunrise is said to be more beneficial than any other time of the day.
http://hubpages.com/hub/Navagraha-Mantra
* Sun represents soul, king, highly placed persons, father. * Moon represents Mind, queen, mother. * Mars represents energy, confidence and ego. * Mercury represents communication. * Jupiter represents the great teacher. * Venus represents wealth, pleasure and reproduction. * Saturn represents learning and Career. * Rahu represents an Asura who does his best to plunge any area of one's life he controls into chaos. * Ketu represents supernatural influences.