本帖最后由 zywqy2011 于 2011-11-23 09:16 编辑
2011-11-23昨晚八时许带小孩第一次观看到了天宫一号过境。根据网站预报,提前将双筒架在三角架上,对准了天宫即将经过的织女星,不一会小孩就从双筒中观看到了自西向东运行的天宫一号,感觉和织女星亮度差不多。由于双筒视野所限,很快就跑出了视野。孩子视力好,马上又用肉眼找到了天津四附近的天宫一号,很快我也用肉眼观察到了移动中的天宫,只见天顶附近一个小亮点缓缓向东划过,直到被东面的树林挡住视线为止。今早用肉眼观看到了ISS从北面的低空划过,-2.4等看起来还是很显眼的。后来又用双筒第二次观看到了HST从罗盘座的天狗四和天狗五间划过,亮度和3.65等的天狗五差不多。
Pass Details
Date: Tuesday, 22 November, 2011
Satellite: Tiangong 1
Local Time: China Standard Time (GMT + 8:00)
Orbit: 367 x 377 km, 42.8° (Epoch 22 Nov)
Sun altitude at time ofmaximum pass altitude: -15.6°
Event Time Altitude Azimuth Distance (km)
Rises above horizon 20:03:48 0° 278° (W ) 2,231
Reaches 10° altitude 20:05:52 10° 279° (W ) 1,382
Maximum altitude 20:08:59 89° 39° (NE ) 378
Enters shadow 20:09:56 41° 98° (E ) 555
Pass Details
Date: Wednesday, 23 November, 2011
Satellite: ISS
Local Time: China Standard Time (GMT + 8:00)
Orbit: 371 x 413 km, 51.6° (Epoch 22 Nov)
Sun altitude at time ofmaximum pass altitude: -16.6°
Event Time Altitude Azimuth Distance (km)
Leaves shadow 07:39:12 27° 347° (NNW) 760
Maximum altitude 07:39:12 27° 347° (NNW) 760
Drops below 10° altitude 07:41:38 10° 39° (NE ) 1,378
Sets 07:43:51 0° 52° (NE ) 2,226
Pass Details
Date: Wednesday, 23 November, 2011
Satellite: HST
Local Time: China Standard Time (GMT + 8:00)
Orbit: 559 x 563 km, 28.5° (Epoch 22 Nov)
Sun altitude at time ofmaximum pass altitude: -14.9°
Event Time Altitude Azimuth Distance (km)
Reaches 10° altitude 07:46:42 10° 205° (SSW) 1,836
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