不思棋牌

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                      1. 首页 > 滚动 >

                        探寻“行星九” 科学家缩小“潜藏区”

                        2015-02-27 09:56:20

                        不思棋牌4MINGFAGUOKEXUEJIA23RIXUANBU,TAMENDUIKENENGCUNZAIDETAIYANGXIDIJIUDAXINGXINGDEGUANCEQUDEJINZHAN,LIYONGPAICHUFAJINYIBUSUOXIAOLEYOUXIAOGUANCEQUYU。

                        排除两个区域

                        MEIGUOJIAZHOULIGONGXUEYUANYANJIULIANGMINGRENYUANSHANGYUE20RIXUANBU,YOU“CHONGFENZHENGJU”XIANSHI,ZAITAIYANGXIBIANYUANKENENG“QIANZANG”ZHEYAOYUANERJUDADEDIJIUDAXINGXING。TAMENRENWEI,ZHEIKENICHENGWEI“XINGXINGJIU”DEXINGTIZHILIANGDAYUESHIMINGWANGXINGDE5000BEI、DIQIUDE10BEI,ZAITAIYANGXIYAOYUANZHICHUYANZHEYIGEBUDUICHENG、LASHENDEHENZHANGDETUOYUANGUIDAOYUNXING。

                        顺着这一思路,来自巴黎天文台的拉斯卡尔和其他3名法国科学家在最新一期《天文和天体物理学》周刊发表文章说,他们通过分析“卡西尼”号飞船回传的数据排除了第九大行星不可能“潜藏”的两大区域,从而进一步缩小了有效观测范围。

                        不思棋牌YISHUXUEJIANMOWEIYIJU,YIMEIGUOTONGXINGTUICECHUDEYUNXINGGUIDAOWEISHEDING,ZHEI4MINGFAGUOKEXUEJIAJIUZHEIKESHENMIXINGTIYUNXINGSHIDUITAIYANGXIQITAXINGXINGSUOCHANSHENGDEYINGXIANGZUOLEJISUANHEFENXI。

                        TAMENFAXIAN,DANGZHEIKEXINGTIYANZISHENGUIDAOYUNXINGZHIYUANRIDIANSHI,YOUYUJULITAIGUOYAOYUAN,TADUIQITAXINGXINGDEYINGXIANGJIHUNANYICHAJUE。YINCI,ZHEIYEBAKEXUEJIADEYOUXIAOYANJIUQUYUXIANZHIZAIQIKAOJINJINRIDIANDEYIBANGUIDAOSHANG。

                        不思棋牌LASIKAERHETADETONGBANSHUO,YOUYUJIANMOJIEGUOYUXIANSHIBUFU,TAMENYIJINGPAICHULEDIJIUDAXINGXINGBUKENENG“QIANZANG”DELIANGDAQUYU,CONGERBAYOUXIAOYANJIUFANWEISUOXIAOLEYIBAN。

                        按布朗和巴特金的说法,计算机模拟显示,如果“行星九”果真存在,它的运行轨道与太阳的距离约为地球运行轨道与太阳距离的50多倍,绕太阳运行一周需要1万至2万年的时间。 (闫洁)

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