509 Iolanda (Asteroid)
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From South El Monte , 509 Iolanda is visible in the dawn sky, rising at 01:28 (PST) and reaching an altitude of 38° above the southern horizon before fading from view as dawn breaks at around 05:44.
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Name
509 Iolanda
|
Object type
Asteroid
|
Current position
| Computed for: | 16 December 2025 |
| Right ascension: | 12h41m [1] |
| Declination: | −14°23' [1] |
| Constellation: | Corvus |
| Magnitude: | 14.65 (V) [1] |
| Distance: | 3.57 AU 29.67 lightmin [1] |
Orbital elements [1]
| Semi-major axis: | 3.06 AU |
| Eccentricity: | 0.098052 |
| Inclination: | 15.41° |
| Longitude ascending node: | 217.46° |
| Argument of perihelion: | 155.51° |
| Epoch of elements: | 21 Nov 2025 |
| Mean Anomaly at epoch: | 157.33° |
| Absolute mag (H): | 8.40 [1] |
| Slope parameter (G): | 0.15 [1] |
Derived quantities
| Perihelion: | 2.76 AU |
| Aphelion: | 3.36 AU |
| Orbital period: | 5.35 years |
Visibility from South El Monte
All times shown in South El Monte local time.