Planets in houses · Kendra
Ketu in the 10th house
South node · Karma Bhava
Ketu is the karaka (significator) of detachment, intuition, spirituality and past karma. The 10th house, called Karma Bhava, shows career, status and karma. When Ketu sits here, these matters take on its colour.
In the 10th house a malefic gives ambition, authority and hard-won success in career.
The 10th house is a kendra (angular house), a pillar of the chart, so a graha here shows its results openly and strongly.
Ketu is a shadow graha and gives the results of the sign lord and conjunct grahas; it is considered strong in Vrishchika.
Results are weaker if Ketu is debilitated in Vrishabha, combust, or afflicted by malefics.
In transit (gochar)
When Ketu transits the 10th house counted from your Moon sign, the period traditionally needs more care.
A single placement is never read alone: sign, aspects, conjunctions, dasha and the whole chart change the outcome.