147 Protogeneia (Asteroid)
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From South El Monte , 147 Protogeneia is visible in the morning sky, becoming accessible around 22:41, when it reaches an altitude of 21° above your south-eastern horizon. It will then reach its highest point in the sky at 01:49, 38° above your southern horizon. It will be lost to dawn twilight around 04:38, 25° above your south-western horizon.
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Name
147 Protogeneia
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Object type
Asteroid
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Current position
| Computed for: | 13 July 2025 |
| Right ascension: | 20h23m [1] |
| Declination: | −17°03' [1] |
| Constellation: | Capricornus |
| Magnitude: | 13.21 (V) [1] |
| Distance: | 2.10 AU 17.43 lightmin [1] |
| Angular motion (speed): | 16.11 arcmin/day[1] |
| Angular motion (pos ang): | 255.4° |
Orbital elements [1]
| Semi-major axis: | 3.14 AU |
| Eccentricity: | 0.022253 |
| Inclination: | 1.93° |
| Longitude ascending node: | 248.21° |
| Argument of perihelion: | 103.48° |
| Epoch of elements: | 25 January 2025 |
| Mean Anomaly at epoch: | 280.07° |
| Absolute mag (H): | 8.76 [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.