137242 1999 RY53 (Asteroid)
From South El Monte , 137242 1999 RY53 is visible in the dawn sky, rising at 01:39 (PDT) – 3 hours and 58 minutes before the Sun – and reaching an altitude of 32° above the south-eastern horizon before fading from view as dawn breaks at around 04:26.
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Name
137242 1999 RY53
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Object type
Asteroid
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Current position
| Computed for: | 07 June 2026 |
| Right ascension: | 23h55m [1] |
| Declination: | +00°17' [1] |
| Constellation: | Pisces |
| Magnitude: | 21.01 (V) [1] |
| Distance: | 1.69 AU 14.09 lightmin [1] |
Orbital elements [1]
| Semi-major axis: | 2.24 AU |
| Eccentricity: | 0.209770 |
| Inclination: | 6.12° |
| Longitude ascending node: | 151.80° |
| Argument of perihelion: | 178.81° |
| Epoch of elements: | 9 Jun 2026 |
| Mean Anomaly at epoch: | 356.92° |
| Absolute mag (H): | 17.21 [1] |
| Slope parameter (G): | 0.15 [1] |
Derived quantities
| Perihelion: | 1.77 AU |
| Aphelion: | 2.71 AU |
| Orbital period: | 3.35 years |
Source