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还有角宿alpha处女座
编辑日期:2021-06-15 13:55  编辑:佚名  阅读次数: 次  [ 关 闭 ]

after 9 o'clock in the evening,this triangle will slowly sink into the western horizon.when you put things away and go home,please imagine,just less than 16 hours later,it's in the outer space near the red planet you just witnessed: at 13:31 on august 6, beijing time,nasa's curiosity rover burst into the upper atmosphere of mars,the heat shield heats up rapidly due to intense friction,its outer temperature reaches 2100 degrees celsius,it is more than twice the temperature of magma.

在好奇号火星车抵达火星的两天里,火星和土星都将在傍晚出现在西方的夜空中,照耀着这两个行星,还有角宿alpha处女座。这三个几乎是一个等边三角形,两侧的打开角度几乎为5度。 角宿是银河系末端的一个巨大的双星系统。

如此紧凑的尺寸,三颗明亮的星星使今晚格外引人注目。也可以将其轻松放入由北斗七星制成的大汤匙中。每次这样的壮举都会吸引全世界人民的关注,因此人们似乎完全忽略了那天夜空中的其他美丽风景。the first magnitude star mentioned here refers to the ”visual magnitude",that is the brightness of stars that people look like,although the brightness difference between these planets is huge,but due to the different distances,after offsetting, the brightness is approximately the same.the number of visual magnitudes gets darker from small to large,so first-class stars are brighter than second-class stars,the second-class stars are brighter than the third-class stars,and so on,the difference in brightness between each other is about 2.512 times.on nights with good weather conditions,people with normal vision can probably see the darkest naked eyes6.5th magnitude stars.

从7月31日开始的新闻, 北京时间nasa的好奇号火星探测器将于8月6日登陆火星。只要漫游者能够在激烈的降落过程中幸存下来,然后,这将标志着伟大的探索之旅的开始。这三颗星在西方的夜空中一起闪耀,形成一个三角形很明显。太阳的余辉消失后,朝西您可以立即看到这个明显的三角形:土星在顶部,右下方的红色是火星,左侧的亮星是spica。这是因为从天文角度来看,这三颗星都是头等星。

。然而, 当我们在地球上看这三个完全不同的行星以类似的亮度在夜空中闪烁。所以,值得走出屋子,抬头看着那天周围的夜空。这是一等星亮度整天排名第15位。 在过去几天好奇心降落在火星上时,火星将出现在傍晚的西方天空中,很显眼

“天车”系统正在协助好奇号流浪者实现平稳着陆

what happened next was totally unimaginable before this: because curiosity was too big and heavy,the previous landing methods are no longer able to cope,therefore, for the first time it adopted a specially designed set of programs.scott gold, a reporter from the los angeles times, described it as follows:

"in just a few minutes of driving to the department store,the spacecraft has changed shape 6 times.just like a transformer,and used 76 explosives,ropes and a huge parachute allow the speed to change from 1.30,000 mph is reduced to 1.每小时7英里。这辆漫游者配备了一系列送往火星的最先进的探测设备。这意味着您可以伸出手臂,张开手掌覆盖整个三角形。整个流动站重1吨,它将花费至少两年的时间在火星上进行勘探活动,目的是确认这个红色星球上是否曾经有过适合生活的宜居环境。

在降落前的最后一刻,经过特别设计的“天车”将漫游车轻轻地放在大风火山口的表面, 预定的着陆点

但是三颗恒星本身却大不相同:火星是一个相对靠近地球的陆地岩石星球; 土星是一个气体巨行星,具有美丽的光环。它位于太阳系之外。(新浪科技新闻晨风)

8月5日晚饭后离开房间,出城仰望星空。"

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