4640 Hara (Asteroid)
From South El Monte , 4640 Hara is visible in the dawn sky, rising at 01:59 (PDT) and reaching an altitude of 49° above the south-eastern horizon before fading from view as dawn breaks at around 06:09.
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Name
4640 Hara
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Object type
Asteroid
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Current position
| Computed for: | 01 November 2025 |
| Right ascension: | 10h28m [1] |
| Declination: | +12°10' [1] |
| Constellation: | Leo |
| Magnitude: | 17.92 (V) [1] |
| Distance: | 2.23 AU 18.51 lightmin [1] |
| Angular motion (speed): | 17.63 arcmin/day[1] |
| Angular motion (pos ang): | 296.3° |
Orbital elements [1]
| Semi-major axis: | 2.25 AU |
| Eccentricity: | 0.108442 |
| Inclination: | 4.21° |
| Longitude ascending node: | 347.68° |
| Argument of perihelion: | 138.53° |
| Epoch of elements: | 25 January 2025 |
| Mean Anomaly at epoch: | 279.50° |
| Absolute mag (H): | 13.47 [1] |
| Slope parameter (G): | 0.15 [1] |
Derived quantities
| Perihelion: | 2.01 AU |
| Aphelion: | 2.50 AU |
| Orbital period: | 3.38 years |