4035 Thestor (Asteroid)
From South El Monte , 4035 Thestor is not observable – it will reach its highest point in the sky during daytime and is no higher than 1° above the horizon at dawn.
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Name
4035 Thestor
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Object type
Asteroid
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Current position
| Computed for: | 17 September 2025 |
| Right ascension: | 10h20m [1] |
| Declination: | −00°29' [1] |
| Constellation: | Sextans |
| Magnitude: | 17.44 (V) [1] |
| Distance: | 6.14 AU 51.08 lightmin [1] |
| Angular motion (speed): | 4.22 arcmin/day[1] |
| Angular motion (pos ang): | 288.9° |
Orbital elements [1]
| Semi-major axis: | 5.28 AU |
| Eccentricity: | 0.056651 |
| Inclination: | 12.13° |
| Longitude ascending node: | 233.71° |
| Argument of perihelion: | 199.89° |
| Epoch of elements: | 25 January 2025 |
| Mean Anomaly at epoch: | 54.42° |
| Absolute mag (H): | 9.56 [1] |
| Slope parameter (G): | 0.15 [1] |
Derived quantities
| Perihelion: | 4.98 AU |
| Aphelion: | 5.58 AU |
| Orbital period: | 12.12 years |