Vainu Bappu Observatory 2.3 meters and was first used in 1986. Along with the Vainu Bappu telescope, the observatory has two other telescopes: A 1-meter Zeiss manufactured and another 75-centimeter Cassegrain reflector currently being refurbished. The observatory also has a Fabry–Pérot interferometer. The 1-metre telescope is associated with two unique discoveries in the solar system. In 1972, atmosphere was detected around Jupiter's satellite Ganymede and in the year 1977, participated in the observations that confirmed rings were discovered around the planet Uranus. In 1984, Kavalur reported the discovery of a thin outer ring around Saturn. On 17 February 1988, a new minor planet
Planet V Sun after entering the ν secular resonance. As an initial test of the Planet V hypothesis, Chambers and Lissauer conducted 36 computer simulations of the Solar System with an additional terrestrial planet. A variety of parameters were used to determine the impacts of Planet V's initial orbit and mass. The mean time at which Planet V was lost was found to increase from 100 Myr to 400 Myr as its initial semi-major axis was increased from 1.8 to 1.9 AU. Results consistent with the current Solar System were most common with a 0.25 Mars mass Planet V. In cases with