8558 Hack (Asteroid)
From South El Monte , 8558 Hack is visible in the dawn sky, rising at 03:20 (PDT) – 3 hours and 31 minutes before the Sun – and reaching an altitude of 30° above the eastern horizon before fading from view as dawn breaks at around 05:51.
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Name
8558 Hack
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Object type
Asteroid
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Current position
| Computed for: | 10 October 2025 |
| Right ascension: | 10h18m [1] |
| Declination: | +10°45' [1] |
| Constellation: | Leo |
| Magnitude: | 21.34 (V) [1] |
| Distance: | 4.35 AU 36.21 lightmin [1] |
| Angular motion (speed): | 6.06 arcmin/day[1] |
| Angular motion (pos ang): | 291.2° |
Orbital elements [1]
| Semi-major axis: | 3.12 AU |
| Eccentricity: | 0.221403 |
| Inclination: | 0.28° |
| Longitude ascending node: | 39.92° |
| Argument of perihelion: | 307.47° |
| Epoch of elements: | 25 January 2025 |
| Mean Anomaly at epoch: | 95.30° |
| Absolute mag (H): | 14.62 [1] |
| Slope parameter (G): | 0.15 [1] |
Derived quantities
| Perihelion: | 2.43 AU |
| Aphelion: | 3.81 AU |
| Orbital period: | 5.51 years |