asteroid 1566 Icarus 靠近

[peter]

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


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.