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星空有约|水星又要“露脸”了,机会难得
Xin Hua She· 2025-08-17 02:26
8月"星空剧场"又上新了。19日,水星将迎来西大距。天文科普专家表示,今年水星共有3次西大距,本月的西大距是观测条件最好的一次。在本 次大距前后的几天清晨,如果天气晴好,感兴趣的公众有望一睹这颗贴近太阳、平时难得一见的行星。 在肉眼可见的太阳系5颗行星中,水星是最难观测的一颗。主要原因在于,水星是距离太阳最近的行星,从地球上看,它和太阳也是挨得很近,几 乎与太阳同升同落,常被太阳的光掩盖。 那么,什么时候可以观测水星?"在一个会合周期(约116天)里,从地球上看,当水星与太阳的张角最大,即'大距'时,是观测水星的最佳时 机。大距分为东大距和西大距。东大距前后,水星在黄昏时分的西方低空出现;西大距前后,水星在黎明时分的东方低空出现。"中国天文学会会 员、天津市天文学会理事杨婧说。 2022年10月9日水星西大距,这是10月10日凌晨在天津东丽区吉兆桥拍摄的水星。(杨婧 摄) 水星运行速度很快,围绕太阳运动一周仅需88天,因此,一年当中水星东大距和西大距会各出现3至4次。每次大距时,水星的观测条件也不一 样,这是水星和太阳的位置关系变化所造成的。 杨婧同时表示,观测水星不限于19日。前后几天,水星的高度变化不大, ...
星空有约|水星19日迎西大距,黎明时分显露真容
Xin Hua She· 2025-08-17 02:19
新华社天津8月17日电(记者周润健)8月"星空剧场"又上新了。19日,水星将迎来西大距。天文科普专 家表示,今年水星共有3次西大距,本月的西大距是观测条件最好的一次。在本次大距前后的几天清 晨,如果天气晴好,感兴趣的公众有望一睹这颗贴近太阳、平时难得一见的行星。 在肉眼可见的太阳系5颗行星中,水星是最难观测的一颗。主要原因在于,水星是距离太阳最近的行 星,从地球上看,它和太阳也是挨得很近,几乎与太阳同升同落,常被太阳的光掩盖。 水星运行速度很快,围绕太阳运动一周仅需88天,因此,一年当中水星东大距和西大距会各出现3至4 次。每次大距时,水星的观测条件也不一样,这是水星和太阳的位置关系变化所造成的。 "本次大距观测条件不错,日出时水星的地平高度约18度,亮度0等。有条件的公众如果借助天文望远镜 观测,还会发现水星呈月牙形,约40%的圆面被太阳照亮。"杨婧说。 杨婧同时表示,观测水星不限于19日。前后几天,水星的高度变化不大,都有机会观测到。(完) 那么,什么时候可以观测水星?"在一个会合周期(约116天)里,从地球上看,当水星与太阳的张角最 大,即'大距'时,是观测水星的最佳时机。大距分为东大距和西大距。东大距 ...
肉眼可见!12日凌晨金星、木星极近上演“结伴游”
Xin Hua She· 2025-08-10 08:24
Core Points - The article discusses the close approach of Venus and Jupiter on August 12, 2023, where they will be visible to the naked eye in the eastern sky during the early morning hours [1][4] - Venus and Jupiter are the brightest planets in the solar system, often visible alongside the Sun and Moon, and they have opportunities to come close together almost every year [2] Summary by Sections - **Event Details** - On August 12, 2023, Venus and Jupiter will be within approximately 0.9 degrees of each other, making them appear very close in the sky [4] - Observers will have over two hours to view the planets after they rise before dawn [4] - The proximity of the planets will also be observable on the following morning, August 13, although their positions will slightly change [4] - **Historical Context** - The last time Venus and Jupiter were within 1 degree was on May 23, 2024, but it was not observable due to proximity to the Sun [4] - Previous observable close approaches occurred on March 2, 2023, and May 1, 2022 [4] - **Future Events** - The next significant close approach of Venus and Jupiter will occur on November 10, 2028, with an angle distance of about 0.4 degrees [6]
在德令哈,与星空对话(足迹)
Ren Min Ri Bao· 2025-07-29 23:03
Core Insights - Delingha, located in Qinghai Province, is an ideal place for astronomical observation due to its clear night skies and minimal light pollution, attracting stargazers and researchers alike [2][3][4] - The integration of ancient star maps, such as the Dunhuang star chart, with modern telescopes highlights the continuous exploration of the cosmos by Chinese civilization [3][4] - The presence of the Purple Mountain Observatory's Qinghai station, equipped with large telescopes, allows for the capture of light from billions of years away, emphasizing the scientific significance of the location [3][4] Industry Insights - Delingha's favorable astronomical conditions draw numerous astronomy enthusiasts and students annually, fostering a culture of exploration and education in astronomy [4][5] - The Delingha Astronomy Science Museum provides professional astronomical observation equipment and educational services, enhancing public engagement with astronomy through interactive exhibits and VR experiences [5] - The region offers various stargazing points, such as Baitushan and Tusu Lake, with professional guidance available for identifying constellations and capturing stunning star trails [5]
7月22日至23日凌晨,记得抬头看!
券商中国· 2025-07-20 23:27
Core Viewpoint - The article discusses the upcoming celestial event where Venus and Jupiter will be closely accompanied by a crescent moon, providing a unique opportunity for public observation in late July and early August [1][4][6]. Summary by Sections Celestial Event Details - On the night of July 22-23, Venus and a crescent moon will be visible together, creating a "star-moon fairy tale" for observers [1][4]. - The visibility of Venus is typically limited to dawn or dusk due to its proximity to the sun, making its conjunction with the moon noteworthy [3][4]. Observational Recommendations - The event will last nearly two hours, and observers are encouraged to find a location with a clear view towards the northeast, away from light pollution [5]. - On July 23, the moon will move closer to Jupiter, providing another opportunity for observation alongside the bright Venus [5]. Future Observations - In August, Venus and Jupiter will appear even closer, reaching a minimum distance of 0.9 degrees on August 12, which is less than the width of two full moons [6]. - Observers with telescopes will have the chance to view both planets and their features simultaneously [7].
星空有约丨年度“最小太阳”等亮相7月“星空剧场”
Xin Hua Wang· 2025-06-30 08:24
Group 1 - The "Starry Sky Theater" program for July features various astronomical events including the "Smallest Sun" and planetary conjunctions [1][2] - On July 4, Earth will reach its farthest point from the Sun, resulting in the smallest apparent diameter of the Sun for the year [1] - Venus will be in close proximity to Uranus on July 4 and 5, making it easier for the public to locate Uranus using telescopes [1] Group 2 - Mercury will experience its second eastern elongation of the year on July 4, with good observation conditions expected [2] - On July 22 and 23, Venus and Jupiter will be seen near a crescent moon, creating visually appealing "moon and star" scenes [2] - July 25 marks the "opposition" of Pluto, allowing experienced astronomers to observe this distant planet with larger telescopes [5] Group 3 - Mars will have a close encounter with a crescent moon on July 28, with the best visual effect expected on the evening of that day [5] - The end of July will feature several active meteor showers, including the Aquarius δ, Capricornus α, and Draco γ meteor showers, enhancing the summer night sky [7]
南都电商观察|张雪峰停播2个月;警惕网售儿童“毒拖鞋”
Nan Fang Du Shi Bao· 2025-06-03 04:36
Group 1: Live Streaming and E-commerce Trends - Actor Li Wei, known for his role in "In the Name of the People," has started live streaming sales of telescopes on a short video platform, conducting three live sessions in the past week [1][2] - Li Wei's product offerings include eight items, all telescopes and accessories from the same brand, with the highest-priced item exceeding 50,000 yuan [2] - Zhang Xuefeng, an education consultant, announced a two-month hiatus from live streaming due to the pressures of the industry, expressing uncertainty about his return [3][4] Group 2: Industry Standards and Regulations - The first national standard for e-commerce information display for toys and children's products has been implemented, aiming to ensure accurate product information and consumer safety [9][11] - The standard mandates the display of essential product information, including compliance, authenticity, and safety warnings, to prevent misleading information that could harm children [11] Group 3: Consumer Satisfaction and Quality Control - The State Post Bureau reported a 1.2-point increase in public satisfaction with express delivery services, reaching a score of 84.8 in the first quarter of 2025 [12] - The average delivery time for express services was recorded at 54.34 hours, a reduction of 4.35 hours compared to the previous year, with a 72-hour delivery success rate of 82.73%, up by 5.56 percentage points [13] Group 4: Product Safety Concerns - A recent investigation revealed that 50% of PVC children's sandals sold online exceeded safe levels of phthalates, with the highest exceeding limits by 509 times, raising health concerns for children [14]
义乌外贸深突围,不仅要抓住“90天窗口期”
Di Yi Cai Jing· 2025-05-23 10:40
Core Viewpoint - The article highlights the resurgence of foreign trade in Yiwu, driven by a temporary easing of trade tensions and a significant increase in orders from the U.S. market, particularly in the wake of tariff reductions and trade negotiations between China and the U.S. [2][4][16] Group 1: Trade Dynamics - Yiwu foreign traders are experiencing a surge in orders, with a notable increase in container bookings to the U.S., which rose nearly 300% following tariff reductions [4][16] - The average booking volume for containers from China to the U.S. increased from 5709 to 21530 standard containers within a week, marking a 277% rise [4][16] - Companies are actively working to fulfill orders, with one business reporting over $1 million in orders ready for shipment to the U.S. [7][11] Group 2: Business Strategies - Companies are adapting to the changing trade environment by diversifying their markets, with some exploring opportunities in Europe and Latin America to mitigate risks associated with U.S. tariffs [11][18] - One company reported that only 5% of its sales come from the U.S., allowing it to remain largely unaffected by the trade tensions [10] - Businesses are also increasing their domestic market efforts, with one company achieving nearly 6 million yuan in sales from domestic gift products in its first year [14] Group 3: Market Trends - The "May Day" holiday saw a significant influx of tourists in Yiwu, with 277.78 million visitors recorded, a 29.99% increase year-on-year, contributing to a tourism revenue of over 1.1 billion yuan [12] - The article notes that the demand for Chinese manufactured goods remains strong, with companies emphasizing that their products have no suitable alternatives abroad [18] - The U.S. Department of Commerce reported a 2.3% year-on-year increase in the Personal Consumption Expenditures (PCE) price index, indicating a potential rise in consumer demand [10]
23日至24日凌晨残月连伴土星、金星上演“星月童话”
Xin Hua She· 2025-05-21 09:34
Group 1 - The celestial events of Saturn and Moon conjunction, followed by Venus and Moon conjunction, will occur on May 23 and 24, allowing the public to observe these phenomena with the naked eye if the weather is clear [1] - On May 23, a crescent Moon will be accompanied by Saturn, with Neptune also positioned between them, although Neptune is not visible without a telescope [1][3] - On May 24, a thinner crescent Moon will meet Venus, which is known as the "Morning Star" with a brightness of approximately -4.5 magnitude, making it easily visible in the eastern sky at dawn [4][6] Group 2 - The visibility of Saturn's rings has changed, with the rings appearing "disappeared" from Earth's perspective, but they can still be observed with a telescope, albeit very thin [3] - Venus is always visible either before sunrise or after sunset due to its orbit being inside Earth's orbit, making its conjunction with the Moon particularly visually appealing [6] - The public is encouraged to wake up early to catch these celestial events, as the viewing window is limited to about one hour, making it an excellent opportunity for astronomical photography [8]