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There exist several reports from experienced observers that, under perfect conditions at an utterly dark sight, objects as faint as eighth magnitude can be glimpsed!
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This means that it can be glimpsed, with a flat horizon, from New York.
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The Huygens probe made a successful landing, and sent back a considerable amount of data. Amongst other things, it imaged hills with what appeared to be dark rivers, lakes and seas, formed of water ice and liquid methane/ethane respectively. Recent data and analysis suggests that atmospheric nitrogen on Titan originated in the Oort cloud, associated with comets, and not as previously thought, from the materials that formed Saturn earlier. For more information see http://www.nasa.gov/mission_pages/cassini/main/index.html.
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The age of the cluster is estimated to be in the range 3.2–5 billion years.
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Several experienced observers have reported seeing the asteroid 7 Iris, magnitude 6.9, with the naked eye, but only when its opposition occurs at its perihelion.
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© 2015 Springer International Publishing Switzerland
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Inglis, M. (2015). March. In: Inglis, M. (eds) Patrick Moore’s Observer’s Year: 366 Nights of the Universe. The Patrick Moore Practical Astronomy Series. Springer, Cham. https://doi.org/10.1007/978-3-319-18678-8_3
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DOI: https://doi.org/10.1007/978-3-319-18678-8_3
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-18677-1
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