16646 Sparrman (Asteroid)
From South El Monte , 16646 Sparrman is visible in the evening sky, becoming accessible around 19:20 (PDT), 33° above your southern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 19:47, 33° above your southern horizon. It will continue to be observable until around 22:26, when it sinks below 21° above your south-western horizon.
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Name
16646 Sparrman
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Object type
Asteroid
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Current position
| Computed for: | 12 October 2025 |
| Right ascension: | 20h23m [1] |
| Declination: | −22°26' [1] |
| Constellation: | Capricornus |
| Magnitude: | 18.60 (V) [1] |
| Distance: | 2.01 AU 16.73 lightmin [1] |
| Angular motion (speed): | 16.32 arcmin/day[1] |
| Angular motion (pos ang): | 251.0° |
Orbital elements [1]
| Semi-major axis: | 2.35 AU |
| Eccentricity: | 0.078235 |
| Inclination: | 6.55° |
| Longitude ascending node: | 347.90° |
| Argument of perihelion: | 106.54° |
| Epoch of elements: | 25 January 2025 |
| Mean Anomaly at epoch: | 167.39° |
| Absolute mag (H): | 14.03 [1] |
| Slope parameter (G): | 0.15 [1] |
Derived quantities
| Perihelion: | 2.16 AU |
| Aphelion: | 2.53 AU |
| Orbital period: | 3.59 years |