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目的地AylGermany
Travel encyclopedia

Maps in Ayl

太陽系(英文:Solar System)是由太陽和受太阳引力束缚的天体所组成的系统。它起源于大约46億年前,从一个被称为太阳星云的原始分子雲开始,在引力坍缩作用下收缩,形成原恒星和原行星盤。之后,原恒星继续坍缩形成太阳;原行星盘通过吸积作用形成了围绕太阳运动的天体。 作为太阳系唯一的恆星,太阳集中了整个太陽系超過99.86%的質量。它通過核心处的核聚变反应将氫转变为氦,并释放能量保持稳定状态。太阳的稳定状态还能维持大约50亿年,之后会演变为一颗红巨星。围繞太陽運行的天体中,最大的八顆被称为行星,人类生活的地球就是其中之一。除了行星之外,还有矮行星和数量众多的小天体(包括小行星和彗星)环绕太阳运动。其中一些天體还有衛星繞自身運行。 太阳内部核反应产生的能量通过电磁辐射和带电粒子向外释放。前者为地球上的生命提供了能量,后者在空间中形成了高速帶電粒子流——太陽風。太阳风在太阳系空间的延伸半径大約为75-90 AU(AU是天文單位的缩写,约等于1.5 × 108公里)。这一范围被称为太陽圈或日球层,其边界稱為日球層頂。太阳风和星际介质风在这里达到平衡,不能继续前进,构成了太陽系和星際空間的物质邊界。太阳系的引力边界被称为希尔球,其半径大约为230,000 AU(3.6光年)。 太阳系位于銀河系的猎户臂内,距离银心大约26,000光年,并以220公里/秒的速度绕银心转动。距離太陽系最近的恒星叫做毗鄰星,距地球大约4.25光年。

Reference context: Wikipedia.

Ayl travel
CC BY-SA 3.0
Ayl travel
Christoph Rieder · CC0
Ayl travel
DescriptionAyl (Rhénanie-Palatinat) OSM 01.png This map was created from OpenStreetMap project data, collected by the OpenStreetMap community. This map may be incomplete, and may contain errors. Do not rely solely on it for navigation. Date (see file history) Source OpenStreetMap.org Creator OpenStreetMap contributors Permission(Reusing this file) OpenStreetMap data is available under the Open Database License (details). Map tiles are licensed under the Creative Commons Attribution-ShareAlike 2.0 license (CC-BY-SA 2.0). This work contains information from OpenStreetMap, which is made available under the Open Database License (ODbL). The ODbL does not require any particular license for maps produced from ODbL data. Prior to 1 August 2020, map tiles produced by the OpenStreetMap Foundation were licensed under the CC-BY-SA-2.0 license. Maps produced by other people may be subject to other licences.Open Database LicenseODbLhttp://opendatacommons.org/licenses/odbl/1.0/true This file is licensed under the Creative Commons Attribution-Share Alike 2.0 Generic license. You are free: to share – to copy, distribute and transmit the work to remix – to adapt the work Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.https://creativecommons.org/licenses/by-sa/2.0CC BY-SA 2.0 Creative Commons Attribution-Share Alike 2.0 truetrue Georeferencing Georeference the map in Wikimaps Warper If inappropriate please set warp_status = skip to hide. · CC BY-SA 4.0