Which one of the following does not find mention in the works of the astronomers of ancient India?

Ancient Indian astronomers (e.g. Aryabhata, Varahamihira) described the five visible planets known since antiquity — Mercury, Venus, Mars, Jupiter, Saturn — along with the Sun and Moon. Uranus is not visible to the naked eye and was discovered only in 1781, so it finds no mention in ancient Indian astronomical texts.