The man who performs the Shraddha under the constellation Dhanistha becomes a king. By doing it under the constellation presided over by Varuna (viz., Shatavisha), one becomes a successful physician.
राज्यभागी धनिष्ठायां भवेत नियतं नरः। नक्षत्रे वारुणे कुर्वन् भिषक्सिद्धिमवाप्नुयात्॥