Mario Bettinus was an Italian Jesuit philosopher, mathematician and astronomer. The lunar crater Bettinus was named after him by Giovanni Riccioli in 1651.
Frontispiece of Mario Bettini's Aerarium Philosophiae Mathematicae. An elderly Jesuit man (possibly Bettini himself), gestures towards the garden at right, where young men enjoy mathematic instruments, which are also being used by the statues that surround the loggia in the middle ground.
Moon crater named after Bettinus
Giuseppe Biancani, SJ was an Italian Jesuit astronomer, mathematician, and selenographer, after whom the crater Blancanus on the Moon is named. Biancani was one of the most able and respected Catholic astronomers of his day, and his main work, Sphaera Mundi, was republished at least four times in the seventeenth century, 1620, 1630, 1635, and 1653.
Sphaera mundi, seu Cosmographia demonstrativa, 1653
De mathematicarum natura dissertatio, 1615