21 Lutetia (Asteroid)
© ESA/Rosetta 2010
From South El Monte , 21 Lutetia will become visible at around 21:12 (PDT), 35° above your southern horizon, as dusk fades to darkness. It will then sink towards the horizon, setting at 02:09.
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Name
21 Lutetia
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Object type
Asteroid
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Current position
| Computed for: | 17 July 2026 |
| Right ascension: | 15h57m [1] |
| Declination: | −20°36' [1] |
| Constellation: | Scorpius |
| Magnitude: | 11.10 (V) [1] |
| Distance: | 1.47 AU 12.18 lightmin [1] |
Orbital elements [1]
| Semi-major axis: | 2.43 AU |
| Eccentricity: | 0.164771 |
| Inclination: | 3.06° |
| Longitude ascending node: | 80.84° |
| Argument of perihelion: | 249.88° |
| Epoch of elements: | 9 Jun 2026 |
| Mean Anomaly at epoch: | 298.77° |
| Absolute mag (H): | 7.49 [1] |
| Slope parameter (G): | 0.15 [1] |
Derived quantities
| Perihelion: | 2.03 AU |
| Aphelion: | 2.84 AU |
| Orbital period: | 3.80 years |
Source
Events
| 04 Jul 2030 | – Asteroid 21 Lutetia at opposition |
| 16 Aug 2034 | – Asteroid 21 Lutetia at opposition |
| 29 Sep 2038 | – Asteroid 21 Lutetia at opposition |
| 05 Jul 2049 | – Asteroid 21 Lutetia at opposition |
Printable finder charts
