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人类首次拍摄到太阳南极

2025-06-14 20:59 by 超时空碎片

尽管人类利用望远镜观察太阳已超过四百年,但一直以来我们都只能从地球绕日轨道面上观察太阳,无法看清楚太阳两极的样貌。由 ESA 主导的太阳轨道卫星(SolO)首次传回了太阳的南极影像,独特视角或将改变我们对太阳磁场、太阳活动周期以及太空天气运作方式的理解。过去的太阳探测器不论是环绕地球或是太阳,几乎都是配置在黄道面附近,与太阳赤道面的夹角不会超过7度,使得太阳两极成为观测死角。虽然 ESA 曾与 NASA 合作利用尤利西斯号探测器,以 79 度的绕极轨道观测太阳风与磁场,但并没有搭载任何望远镜与相机,所以太阳两极的活动样貌至今仍没有人见过。ESA 在 2020 年发射太阳轨道卫星(SolO),除了太阳风与磁场观测仪器之外,还搭载了偏振和日震成像仪(PHI)、极紫外线成像仪(EUI)以及日冕环境光谱成像仪(SPICE),试图用高倾角轨道来捕捉太阳两极的活动影像。

www.esa.int/Science_Exploration/Space_Science/Solar_Orbiter/Solar_Orbiter_gets_world-first_views_of_the_Sun_s_poles
天文館:人類首次拍攝到太陽南極

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人类首次拍摄到太阳南极

2025-06-14 20:59 by 超时空碎片

尽管人类利用望远镜观察太阳已超过四百年,但一直以来我们都只能从地球绕日轨道面上观察太阳,无法看清楚太阳两极的样貌。由 ESA 主导的太阳轨道卫星(SolO)首次传回了太阳的南极影像,独特视角或将改变我们对太阳磁场、太阳活动周期以及太空天气运作方式的理解。过去的太阳探测器不论是环绕地球或是太阳,几乎都是配置在黄道面附近,与太阳赤道面的夹角不会超过7度,使得太阳两极成为观测死角。虽然 ESA 曾与 NASA 合作利用尤利西斯号探测器,以 79 度的绕极轨道观测太阳风与磁场,但并没有搭载任何望远镜与相机,所以太阳两极的活动样貌至今仍没有人见过。ESA 在 2020 年发射太阳轨道卫星(SolO),除了太阳风与磁场观测仪器之外,还搭载了偏振和日震成像仪(PHI)、极紫外线成像仪(EUI)以及日冕环境光谱成像仪(SPICE),试图用高倾角轨道来捕捉太阳两极的活动影像。

www.esa.int/Science_Exploration/Space_Science/Solar_Orbiter/Solar_Orbiter_gets_world-first_views_of_the_Sun_s_poles
天文館:人類首次拍攝到太陽南極

#科学

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Among the actives, Ascendas REIT sank 0.64 percent, while CapitaLand Integrated Commercial Trust plummeted 1.42 percent, City Developments plunged 1.12 percent, Dairy Farm International tumbled 0.86 percent, DBS Group skidded 0.68 percent, Genting Singapore retreated 0.67 percent, Hongkong Land climbed 1.30 percent, Mapletree Commercial Trust lost 0.47 percent, Mapletree Logistics Trust tanked 0.95 percent, Oversea-Chinese Banking Corporation dropped 0.61 percent, SATS rose 0.24 percent, SembCorp Industries shed 0.54 percent, Singapore Airlines surrendered 0.79 percent, Singapore Exchange slid 0.30 percent, Singapore Press Holdings declined 1.03 percent, Singapore Technologies Engineering dipped 0.26 percent, SingTel advanced 0.81 percent, United Overseas Bank fell 0.39 percent, Wilmar International eased 0.24 percent, Yangzijiang Shipbuilding jumped 1.42 percent and Keppel Corp, Thai Beverage, CapitaLand and Comfort DelGro were unchanged.

Importantly, that investor viewpoint is not new. It cycles in when conditions are right (and vice versa). It also brings the ineffective warnings of an overpriced market with it.Looking toward a good 2022 stock market, there is no apparent reason to expect these issues to change.

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