158 Koronis (Asteroid)
From South El Monte , 158 Koronis will become visible at around 20:01 (PDT), 38° above your western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting at 23:17.
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Name
158 Koronis
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Object type
Asteroid
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Current position
| Computed for: | 19 March 2026 |
| Right ascension: | 03h18m [1] |
| Declination: | +18°43' [1] |
| Constellation: | Aries |
| Magnitude: | 14.93 (V) [1] |
| Distance: | 3.18 AU 26.44 lightmin [1] |
Orbital elements [1]
| Semi-major axis: | 2.87 AU |
| Eccentricity: | 0.053354 |
| Inclination: | 1.01° |
| Longitude ascending node: | 277.64° |
| Argument of perihelion: | 147.59° |
| Epoch of elements: | 21 Nov 2025 |
| Mean Anomaly at epoch: | 339.83° |
| Absolute mag (H): | 9.34 [1] |
| Slope parameter (G): | 0.15 [1] |
Derived quantities
| Perihelion: | 2.71 AU |
| Aphelion: | 3.02 AU |
| Orbital period: | 4.86 years |