罗塞塔"彗星探测器 飞掠小行星鲁特西亚（已补图）
本帖最后由 wuleyun601 于 2010-7-13 07:54 编辑欧洲航天局10日晚间发表公报说，“罗塞塔”彗星探测器于当天近距离飞掠小行星“鲁特西亚”，并传回首批高清晰图像。
新华网7月11日报道 欧洲航天局10日晚间发表公报说，“罗塞塔”彗星探测器于当天近距离飞掠小行星“鲁特西亚”，并传回首批高清晰图像。
公报说，“罗塞塔”与“鲁特西亚”最近的飞掠发生在格林尼治时间10日18时10分，当时两者的距离约为3162公里。在此期间，“罗塞塔”观测到一个拉长的椭圆星体在不断旋转，从而证实了科学家此前对“鲁特西亚”形状的猜测。此外，“罗塞塔”传回的首批图片显示，“鲁特西亚”的表面布满陨石坑，这说明该小行星曾经遭受过多次外来天体的剧烈撞击。
欧航局表示，虽然“罗塞塔”的飞掠时间非常短暂，但已足够探测器携带的相机对其进行拍摄，这些数据将先后传回地球，为科学家研究“鲁特西亚”提供第一手的数据。
飞掠成功后，欧航局科学和自动探测负责人戴维·索思伍德在该机构的直播节目中表示，此举对欧洲乃至整个世界的天文学研究都是历史性的一刻，“罗塞塔”的表现堪称完美，但这只是第一步，接下来科研人员将对传回的数据进行处理。
“鲁特西亚”是一颗在火星和木星轨道间运行的小行星，至今没有人了解它真正的“长相”。欧航局希望通过“罗塞塔”近距离的观测，解开诸多未解之谜。
转载：http://discover.news.163.com/10/0711/11/6BAD3N8P000125LI.html 本帖最后由 wuleyun601 于 2010-7-13 08:00 编辑
司琴星和土星
http://www.nasa.gov/images/content/468183main_2_Lutetia_and_Saturn_full.jpg
At a distance of 36,000 kilometers (22,369 miles) the OSIRIS Narrow Angle Camera (NAC) took this image catching the planet Saturn in the background. Image credit: ESA 2010 MPS for OSIRIS Team MPS/UPD/LAM/IAA/RSSD/INTA/UPM/DASP/IDA
司琴星
http://www.nasa.gov/images/content/468195main_4_closest_approach_full.jpg Lutetia at closest approach. Image credit: ESA 2010 MPS for OSIRIS Team MPS/UPD/LAM/IAA/RSSD/INTA/UPM/DASP/IDA
司琴星
http://www.nasa.gov/images/content/468206main_5_zoomsurface_full.jpg Zoom in on a possible landslide and boulders at the highest resolution. Image credit: ESA 2010 MPS for OSIRIS Team MPS/UPD/LAM/IAA/RSSD/INTA/UPM/DASP/IDA
接近司琴星过程
http://www.nasa.gov/images/content/468156main_Lutetia_frames-full_full.jpg
Individual images show the approach to asteroid Lutetia by the European Space Agency's Rosetta spacecraft. The images were acquired on July 10, 2010, with the largest view taken as Rosetta came within 80,000 kilometers (50,000 miles) of the asteroid on its way to closest approach. Image credit: ESA 2010 MPS for OSIRIS Team MPS/UPD/LAM/IAA/RSSD/INTA/UPM/DASP/IDA
接近司琴星过程（动画）
http://www.nasa.gov/images/content/468144main_Lutetia_approach.gif
Animated gif comprised of images taken by the European Space Agency's Rosetta spacecraft as it neared its target, asteroid Lutetia. The images were acquired on July 10, 2010, with the largest view taken as Rosetta came to within 80,000 kilometers (50,000 miles) of the asteroid on its way to closest approach. Image credit: ESA 2010 MPS for OSIRIS Team MPS/UPD/LAM/IAA/RSSD/INTA/UPM/DASP/IDA
司琴星在天空中的位置
http://www.nasa.gov/images/content/468083main_RosettaDiag20100709-full_full.jpg The inset shows asteroid Lutetia from a distance of 2 million kilometers (1.2 million miles) acquired by the OSIRIS camera on ESA's Rosetta spacecraft on July 9, 2010. Image Credit: NASA/JPL-Caltech/ESA
转载：http://bbs.astron.ac.cn/thread-69039-1-1.html
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