OUR FIRST INTERSTELLAR VISITOR.
In: Astronomy, Jg. 48 (2020-02-01), Heft 2, S. 18-27
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GLO:ast/01feb20:19n1.jpg PHOTO (COLOR): Based on the light it reflected over time, astronomers have determined that 'Oumuamua, the first identified interstellar visitor to our solar system, is red in color and several times longer than it is wide. gl The most elongated objects that astronomers have found in our own solar system are, at most, three times longer than they are wide, making 'Oumuamua extreme by our standards - and difficult to explain, based on our current picture of how objects in our solar system evolve. The Minor Planet Center initially classified 'Oumuamua as a short-period comet on October 20, says Karen Meech of the Institute for Astronomy at the University of Hawai'i, a member of the team that discovered and first studied 'Oumuamua. But the fact that the 1.8-meter Pan-STARRSl Telescope spotted 'Oumuamua could mean one of two things: Either there are many more interstellar objects than we thought, or 'Oumuamua is not a normal member of the interstellar population astronomers expect. [Extracted from the article]
Titel: |
OUR FIRST INTERSTELLAR VISITOR.
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Autor/in / Beteiligte Person: | KLESMAN, ALISON |
Zeitschrift: | Astronomy, Jg. 48 (2020-02-01), Heft 2, S. 18-27 |
Veröffentlichung: | 2020 |
Medientyp: | serialPeriodical |
ISSN: | 0091-6358 (print) |
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