The asteroid 66391 1999 KW4
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From Ashburn , 66391 1999 KW4 will become visible at around 21:59 (EDT) as the dusk sky fades, 58° above your south-western horizon. It will then sink towards the horizon, setting 6 hours and 39 minutes after the Sun at 03:17.
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Name
66391 1999 KW4
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Object Type
Asteroid
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Current Position
| Constellation: | Coma Berenices |
| Magnitude: | 16.89 (V)[1] |
| Right Ascension: | 13h00m [1] |
| Declination: | +20°39' [1] |
| Distance: | 0.36 AU 3.01 lightmin [1] |
Derived Quantities
| Absolute Mag (V): | 50.67 |
Orbital Elements[1]
| Semi-major axis: | 0.64 AU |
| Eccentricity: | 0.688717 |
| Inclination: | 38.88° |
| Longitude ascending node: | 244.91° |
| Argument of perihelion: | 192.62° |
| Epoch of elements: | 16 January 2019 |
| Mean Anomaly at epoch: | 236.57° |
Derived quantities
| Perihelion: | 0.20 AU |
| Aphelion: | 1.08 AU |
| Orbital period: | 0.51 years |