2.5 M Wide-Field And High-Resolution Telescope

We propose to construct a 2.5 m wide-field and high-resolution telescope (WeHiT). It will be the first facility in the world with a special innovative design and can conduct both high-resolution solar observations and the wide-field night sky survey. Its scientific objectives cover solar physics, time-domain astronomy, galactic astrophysics, and exoplanet science, all of which are recent hot topics in astronomy. The telescope can provide top-ranked data for Chinese astronomers. In particular, as the largest on-axis solar telescope in the world with wide-field than all large solar telescopes operating at present, it can provide unprecedented high-resolution solar data, which can help us obtain breakthrough achievements in the study of solar active regions and solar eruptions, such as solar flares and coronal mass ejections (CMEs). The data are also very useful for the study of space weather. As a large telescope in the China time-zone, the telescope is very unique in continuously monitoring short-time transient events by filling the gap in the time-zone. Furthermore, it can provide valuable high-quality data of the narrow-band extragalactic survey, nearby galaxy study and exoplanet survey. Moreover, the telescope is a top-level one which can make essential contribution to training the graduate and undergraduate students majoring in observational astronomy.