158 Koronis (Asteroid)
From South El Monte , 158 Koronis is visible in the dawn sky, rising at 01:04 (PDT) and reaching an altitude of 42° above the eastern horizon before fading from view as dawn breaks at around 04:35.
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Name
158 Koronis
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Object type
Asteroid
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Current position
| Computed for: | 09 July 2025 |
| Right ascension: | 02h04m [1] |
| Declination: | +13°37' [1] |
| Constellation: | Aries |
| Magnitude: | 14.89 (V) [1] |
| Distance: | 2.88 AU 23.98 lightmin [1] |
| Angular motion (speed): | 11.88 arcmin/day[1] |
| Angular motion (pos ang): | 250.5° |
Orbital elements [1]
| Semi-major axis: | 2.87 AU |
| Eccentricity: | 0.053300 |
| Inclination: | 1.01° |
| Longitude ascending node: | 277.65° |
| Argument of perihelion: | 147.39° |
| Epoch of elements: | 25 January 2025 |
| Mean Anomaly at epoch: | 279.12° |
| Absolute mag (H): | 9.36 [1] |
| Slope parameter (G): | 0.15 [1] |
Derived quantities
| Perihelion: | 2.72 AU |
| Aphelion: | 3.02 AU |
| Orbital period: | 4.86 years |