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This Weekends Big Rock - Disappointing Geometry - Printable Version +- Skyhound Forums (https://skyhound.com/forums) +-- Forum: General & Visual Observing (https://skyhound.com/forums/forumdisplay.php?fid=13) +--- Forum: Observing Close Approaching Asteroids (https://skyhound.com/forums/forumdisplay.php?fid=28) +--- Thread: This Weekends Big Rock - Disappointing Geometry (/showthread.php?tid=2037) |
This Weekends Big Rock - Disappointing Geometry - bigmasterdrago - 2021-03-17 I'm sure some have heard that the large asteroid, 231937 (2001 FO32) will pass ~5LD or ~2,013,071Km by our blue planet this weekend. The rock is said to be ~ 1Km in diameter by some sources but others say 0.55±0.11 km. Anyway, it could be as bright as magnitude 11.6 and moving ~3.5'/min, so easily watched motion. Some sources make it a bit brighter. The down side is that the windows for observing it are somewhat small. On the 19th, it remains fairly low, only getting up to about 20° at 08:00UT during dark time from my location at 30°N. It's worse in the wee hours of the 20th, loosing a few degrees of altitude when no moon interference. The 21st is even worse as it is only up in daylight:-(unless you can snag it between 5 & 6am CDT! It should be up 18° at 6am moving 190"/min near azimuth 150°. If you wait til 7am, you're well into nautical twilight. You can use ST4 to generate the ephemeris from your location. RE: This Weekends Big Rock - Disappointing Geometry - theskyhound - 2021-03-18 I added 2001 FO32 to the current minor planets list |