99942 Apophis (Asteroid)
Finder chart
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From Cambridge , 99942 Apophis is not observable – it will reach its highest point in the sky during daytime and is 0° below the horizon at dusk.
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|
Name
99942 Apophis
|
Object type
Asteroid
|
Current position
| Computed for: | 05 April 2025 |
| Right ascension: | 01h54m [1] |
| Declination: | +10°59' [1] |
| Constellation: | Aries |
| Magnitude: | 20.84 (V) [1] |
| Distance: | 1.78 AU 14.79 lightmin [1] |
| Angular motion (speed): | 37.22 arcmin/day[1] |
| Angular motion (pos ang): | 252.6° |
Orbital elements [1]
| Semi-major axis: | 0.92 AU |
| Eccentricity: | 0.191128 |
| Inclination: | 3.34° |
| Longitude ascending node: | 203.90° |
| Argument of perihelion: | 126.67° |
| Epoch of elements: | 25 January 2025 |
| Mean Anomaly at epoch: | 339.02° |
| Absolute mag (H): | 19.00 [1] |
| Slope parameter (G): | 0.15 [1] |
Derived quantities
| Perihelion: | 0.75 AU |
| Aphelion: | 1.10 AU |
| Orbital period: | 0.89 years |
Visibility from Cambridge
All times shown in Cambridge local time.
Events
| 13 Apr 2029 | – Asteroid 99942 Apophis at opposition |
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