Three dimensional exploration of the sun, "Xihe-2" will strive to be launched in 2026
At present, China is carrying out the demonstration of the "Xihe-2" solar Earth L5 solar exploration project.
Studying the Sun
The inevitable requirement for achieving sustainable human development
The Sun is currently the only star that can be observed with high spatiotemporal resolution by humans, closely related to human activities and Earth safety. Observing and studying solar eruptions and their impacts is not only a major cutting-edge scientific topic, but also an inevitable requirement for achieving sustainable human development.
On October 14, 2021, China successfully launched its first solar exploration scientific and technological experimental satellite, Xihe, and has achieved the first batch of detection results.
On the basis of the successful launch of the "Xihe" satellite, China will focus on promoting the implementation of the "Xihe-2" solar Earth L5 solar exploration project during the 14th Five Year Plan period. After the launch of Xihe-2, it can deeply explore the origin and evolution of the magnetic field in the solar active zone, reveal the three-dimensional structure and physical mechanism of solar eruptions, study the propagation laws and ground response of solar eruptions, and provide key data and technical basis for achieving timely and accurate space weather warning and prediction.
"Xihe No.2"
Strive to launch to the Sun Earth L5 point around 2026
The Xihe-2 solar exploration project for the L5 solar system was jointly proposed by multiple units. According to experts, according to the demonstration plan, "Xihe-2" will strive to be launched to the L5 point of the Sun and Earth around 2026 for three-dimensional detection of the Sun.
The solar terrestrial L5 point, also known as the fifth Lagrangian point, is approximately 150 million kilometers away from Earth.
▲ Effect diagram of China's future solar space exploration plan
As of now, the L5 point between Japan and the Earth is still an international detection gap. The exploration in this area has significant scientific significance, good engineering feasibility, and high input-output ratio. By combining near-Earth observations, three-dimensional reconstruction of solar activity phenomena can be achieved, providing key information for revealing the physical mechanisms of solar eruptions; Being able to observe the upcoming Earth facing solar activity 4-5 days in advance and track real-time Earth facing solar eruptions brings a revolutionary breakthrough to space weather forecasting.
