... which are now classified as asteroids, have former histo ries as active comets: for example, the asteroid (4015) Wilson Harrington, which was observed to show a fanned tail on pre discovery photographic plates taken in 1949, and was pre viously known ...
... Also, the brightness of the comet is currently ~1 mag ahead of predictions which should make it easier (around mag 5 to 6: TM ... It has a short fan tail, but appears almost stellar in binocs. TM) 2. ...
... ТљТљТљ (I feel a particular affinity with Rob, as I have an A1 sizeТљsigned copy of his amazing photo of his own 'daylight comet' of 2007, showing that fantastic sweeping feathery tail.) ...
... see it naked eye, so I went to the car to get my specs, but by the time I got back the comet was sinking into a bank of€аhaze ... It was noticeably yellow, and I€аcould see a tail of about 30 - 40 arcmins pointing up and to the€аleft. ...
... The different parts of a comet include nucleus, coma, dust-tail and ion-tail. ... with the coma to form the dust tail, one of the distinct features of comets ... of which are ionised by solar radiation after leaving the comet, to form an ion tail ...
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Ссылки http://star.arm.ac.uk/PhD-Thesis/files/atr/thesis_final_sd.pdf -- 2295.2 Кб -- 28.07.2010 Похожие документы
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