147 Protogeneia (Asteroid)
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From South El Monte , 147 Protogeneia will become visible at around 17:48 (PST), 28° above your south-western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting 3 hours and 50 minutes after the Sun at 20:34.
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Name
147 Protogeneia
|
Object type
Asteroid
|
Current position
| Computed for: | 16 December 2025 |
| Right ascension: | 21h04m [1] |
| Declination: | −15°00' [1] |
| Constellation: | Capricornus |
| Magnitude: | 14.75 (V) [1] |
| Distance: | 3.61 AU 30.04 lightmin [1] |
Orbital elements [1]
| Semi-major axis: | 3.14 AU |
| Eccentricity: | 0.022022 |
| Inclination: | 1.93° |
| Longitude ascending node: | 248.20° |
| Argument of perihelion: | 103.55° |
| Epoch of elements: | 21 Nov 2025 |
| Mean Anomaly at epoch: | 333.19° |
| Absolute mag (H): | 8.72 [1] |
| Slope parameter (G): | 0.15 [1] |
Derived quantities
| Perihelion: | 3.07 AU |
| Aphelion: | 3.21 AU |
| Orbital period: | 5.56 years |
Visibility from South El Monte
All times shown in South El Monte local time.