261 Prymno (Asteroid)
From South El Monte , 261 Prymno is visible in the morning sky, becoming accessible around 23:41, when it reaches an altitude of 21° above your eastern horizon. It will then reach its highest point in the sky at 04:32, 70° above your southern horizon. It will be lost to dawn twilight around 05:35, 65° above your south-western horizon.
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Name
261 Prymno
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Object type
Asteroid
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Current position
| Computed for: | 18 September 2025 |
| Right ascension: | 03h31m [1] |
| Declination: | +14°27' [1] |
| Constellation: | Taurus |
| Magnitude: | 13.79 (V) [1] |
| Distance: | 1.78 AU 14.80 lightmin [1] |
| Angular motion (speed): | 19.75 arcmin/day[1] |
| Angular motion (pos ang): | 252.8° |
Orbital elements [1]
| Semi-major axis: | 2.33 AU |
| Eccentricity: | 0.090299 |
| Inclination: | 3.63° |
| Longitude ascending node: | 96.58° |
| Argument of perihelion: | 66.66° |
| Epoch of elements: | 25 January 2025 |
| Mean Anomaly at epoch: | 173.12° |
| Absolute mag (H): | 9.57 [1] |
| Slope parameter (G): | 0.15 [1] |
Derived quantities
| Perihelion: | 2.12 AU |
| Aphelion: | 2.54 AU |
| Orbital period: | 3.56 years |