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主題: asteroid 1566 Icarus 靠近 作者: peter 於 2015-06-18 08:56:21 asteroid 1566 Icarus
http://www.itelescope.net/sky-alerts/2015/6/15/alert-close-aproach-of-asteroid-1566-icarus.html Asteroid 1566 Icarus as seen from Mayhill New Mexico from astronomical twilight from June 16 to June 23 (http://www.itelescope.net/storage/icarus_june_gras_map.png?__SQUARESPACE_CACHEVERSION=1434375340322) close approach to Earth on 15:39 UT 16 June at distance of 0.053 AU. yahoo 討論區說比先前預算 13.9 還要亮 12.4 等多 https://groups.yahoo.com/neo/groups/comets-ml/conversations/messages/24808 while the ephemeris prediction was magnitude 13.9, it was much brighter — I measured a magnitude of 12.4 (June 17.18 UT). From my location, at 4:14 UT it transited the galaxy NGC 4625 — a rather remarkable sight. |