A Newton type astronomical
telescope lens constant temperature device disclosed by the present invention comprises an astronomical
telescope main body, the astronomical
telescope main body is internally provided with a control mainboard and a
wireless module, the control mainboard is electrically connected with an external power supply through a wire, the
wireless module is wirelessly connected with a
wireless controller, and the wireless controller is electrically connected with the astronomical telescope main body. The astronomical telescope comprises an astronomical telescope body, a lens is arranged in the astronomical telescope body, a
temperature control mechanism capable of refrigerating and heating is arranged at one end of the astronomical telescope body, the
temperature control mechanism comprises a filtering device arranged at the end away from the lens and used for filtering
moisture and dust in air, and a temperature sensor is arranged in the side, close to the
temperature control mechanism, of the lens. The astronomical telescope has the advantages that
moisture and impurities in air can be removed during temperature rising or cooling, temperature rising and cooling can be realized,
wireless control is realized, the astronomical telescope is quite convenient to use, and the service life of the astronomical telescope is greatly prolonged.