转自：扬子晚报 1月31日，日地L5太阳探测工程"羲和二号"项目启动会暨科学研讨会上宣布，我国计划2028年至2029年 间，择机向日地L5点发射"羲和二号"。 "羲和二号"是南京大学服务国家空间安全重大需求，联合航天八院等单位前瞻性地提出的日地L5点太阳 探测工程。 羲和是《山海经》中的太阳之母，是《楚辞》中驾车控制太阳东升西落的神，也是中国古代观测天象与 制定历法的官职。2021年10月，我国成功发射首颗太阳探测科学技术试验卫星"羲和号"，正式步入空间 探日时代。 近5年后，"羲和二号"正式启动。南京大学天文与空间科学学院方成院士介绍，"羲和号"已超期服役， 目前运行状态良好。"羲和二号"发射后，将从全新的波段和视角对太阳开展立体观测。 "羲和二号"计划前往的日地L5点位 置示意图 "截至目前，人类发射的太阳探测器已有70多颗，绝大多数分布在日地连线上，少数环绕太阳运行，还 没有探测器在日地L5点驻留。因此，'羲和二号'将给人类研究太阳提供一个全新的'旁观者'视角。"李川 说，身处引力平衡点，"羲和二号"无需消耗过多能量就能维持轨道稳定，设计寿命长达7年。 据了解，"羲和二号"能够对太阳磁场和太阳活动实现 ...

1月31日，日地L5太阳探测工程"羲和二号"项目启动会暨科学研讨会上宣布，我国计划2028年至2029年 间，择机向日地L5点发射"羲和二号"。 "羲和二号"是南京大学服务国家空间安全重大需求，联合航天八院等单位前瞻性地提出的日地L5点太阳 探测工程。 羲和是《山海经》中的太阳之母，是《楚辞》中驾车控制太阳东升西落的神，也是中国古代观测天象与 制定历法的官职。2021年10月，我国成功发射首颗太阳探测科学技术试验卫星"羲和号"，正式步入空间 探日时代。 近5年后，"羲和二号"正式启动。南京大学天文与空间科学学院方成院士介绍，"羲和号"已超期服役， 目前运行状态良好。"羲和二号"发射后，将从全新的波段和视角对太阳开展立体观测。 "羲和号"环绕地球运行，"羲和二号"则不是。"羲和号"科学与应用系统总设计师、南京大学天文与空间 科学学院教授李川介绍，太阳和地球有5处引力平衡点，L1、L2、L3在日地连线上，L4、L5则在地球 环绕太阳运行的轨道上，各自与太阳、地球构成边长约1.5亿公里的等边三角形，如果将地球公转方向 视作"前方"，L5在地球的"身后"。 "羲和二号"计划前往的日地L5点位置示意图 "截至目前，人类 ...

Core Viewpoint - The article discusses the launch plan for China's solar exploration satellite "Xihe-2," which is scheduled to be sent to the Sun-Earth L5 point between 2028 and 2029, marking a significant advancement in solar observation technology [1]. Group 1: Project Overview - "Xihe" is named after the mother of the sun in ancient Chinese texts, and the first satellite "Xihe-1" was successfully launched in October 2021, initiating China's solar exploration era [2]. - "Xihe-2" will provide a new perspective for solar observation, operating from the L5 point, which is different from "Xihe-1" that orbits the Earth [2][3]. Group 2: Technical Capabilities - "Xihe-2" will enable precise measurements of solar magnetic fields and activities, contributing to the establishment of a comprehensive three-dimensional physical model of solar eruptions [5]. - The satellite will enhance China's space weather forecasting capabilities, allowing for early detection of solar activities such as solar flares and coronal mass ejections, providing an advance warning of four to five days compared to Earth-based observations [5]. Group 3: Operational Advantages - Positioned at the L5 point, "Xihe-2" will maintain stable orbit with minimal energy consumption, with a designed operational lifespan of up to seven years [3]. - The satellite's unique location will offer a new observational perspective, as no other solar probes have been stationed at the L5 point, thus providing valuable data for solar research [3].

据新华社，1月31日，日地L5太阳探测工程"羲和二号"项目启动会暨科学研讨会上宣布， 我国计划2028年至2029年间，择机向日地L5点 发射"羲和二号"。 羲和是《山海经》中的太阳之母，是《楚辞》中驾车控制太阳东升西落的神，也是中国古代观测天象与制定历法的官职。2021年10月，我 国成功发射首颗太阳探测科学技术试验卫星"羲和号"，正式步入空间探日时代。 近5年后，"羲和二号"正式启动。南京大学天文与空间科学学院方成院士告诉记者，"羲和号"已超期服役，目前运行状态良好。"羲和二 号"发射后，将从全新的波段和视角对太阳开展立体观测。 "羲和号"环绕地球运行，"羲和二号"则不是。"羲和号"科学与应用系统总设计师、南京大学天文与空间科学学院教授李川介绍，太阳和地 球有5处引力平衡点，L1、L2、L3在日地连线上，L4、L5则在地球环绕太阳运行的轨道上，各自与太阳、地球构成边长约1.5亿公里的等边 三角形，如果将地球公转方向视作"前方"，L5在地球的"身后"。 "羲和二号"计划前往的日地L5点位置示意图。（南京大学供图） "截至目前，人类发射的太阳探测器已有70多颗，绝大多数分布在日地连线上，少数环绕太阳运行，还没 ...

记者1月31日从日地L5太阳探测工程"羲和二号"项目启动会暨科学研讨会上了解到，我国计划2028年至 2029年间，择机向日地L5点发射"羲和二号"。 羲和是《山海经》中的太阳之母，是《楚辞》中驾车控制太阳东升西落的神，也是中国古代观测天象与 制定历法的官职。2021年10月，我国成功发射首颗太阳探测科学技术试验卫星"羲和号"，正式步入空间 探日时代。 "羲和二号"计划前往的日地L5点位置示意图。（南京大学供图） "截至目前，人类发射的太阳探测器已有70多颗，绝大多数分布在日地连线上，少数环绕太阳运行，还 没有探测器在日地L5点驻留。因此，'羲和二号'将给人类研究太阳提供一个全新的'旁观者'视角。"李川 说，身处引力平衡点，"羲和二号"无需消耗过多能量就能维持轨道稳定，设计寿命长达7年。 据了解，"羲和二号"能够对太阳磁场和太阳活动实现精细测量，建立完整的太阳爆发三维物理模型，并 增强我国空间天气预警预报能力。 中国科学院国家天文台汪景琇院士表示，相比地球视角，"羲和二号"在日地L5点能够提前四到五天观测 太阳活动区和活动现象，特别是太阳耀斑、日冕物质抛射等灾害性空间天气，为地球应急响应争取更多 准备时间。 ...

Core Points - Recent solar activity has seen multiple significant solar flares, including X1.8, X1.1, M7.4, M8.6, and X1.7 flares, indicating heightened solar activity [1][2] - Solar flares and coronal mass ejections (CMEs) can impact space weather, which affects high-tech fields such as aerospace, aviation, and communications, although ground-level human health is not at risk [2][5] - The current solar activity is reportedly weaker compared to last year, with solar flares categorized by intensity levels (C, M, X) and geomagnetic storms classified as weak, medium, or strong [2][5] Industry Developments - The "Xihe" satellite, China's first solar exploration satellite, is part of a broader initiative to enhance space weather monitoring capabilities [2][5] - The completion of the Meridian Project Phase II marks a significant advancement in China's ground-based monitoring of space weather across all layers of the sun-Earth system [5] - Plans for the "Xihe II" solar exploration project aim to position a satellite at the L5 Lagrange point, enabling advanced observation and tracking of solar activities directed towards Earth, enhancing predictive capabilities for space weather [5]

Core Viewpoint - Recent solar activity has increased significantly, with multiple solar flares occurring in early November, which may impact space weather and technology on Earth [1][2] Group 1: Solar Activity - The sun has recently experienced several significant flares, including X1.8, X1.1, M7.4, M8.6, and X1.7 levels [1] - Solar flares and coronal mass ejections are part of solar activity, with flares likened to volcanic eruptions on the sun's surface, ejecting massive amounts of material at high speeds [1] Group 2: Space Weather Impact - Space weather refers to changes in the space environment caused by solar activity, with geomagnetic storms being one of the effects [1][2] - While humans on the ground are generally safe from geomagnetic storms, these events can disrupt high-tech sectors such as aerospace, aviation, and communications [1] Group 3: Monitoring and Forecasting - The National Space Weather Monitoring and Early Warning Center has issued warnings for potential geomagnetic activity, indicating possible small to moderate geomagnetic storms [2] - China has made advancements in space weather monitoring capabilities, including the completion of the Meridian Project Phase II and the launch of the "Fengyun Space" system [2] - The upcoming "Xihe II" solar probe is expected to enhance predictive capabilities for solar activity, providing timely warnings and data support for space weather forecasting [2]