21 Lutetia (Asteroid)
© ESA/Rosetta 2010
Finder chart
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From South El Monte , 21 Lutetia is visible in the dawn sky, rising at 03:25 (PST) – 3 hours and 23 minutes before the Sun – and reaching an altitude of 24° above the south-eastern horizon before fading from view as dawn breaks at around 05:44.
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Name
21 Lutetia
|
Object type
Asteroid
|
Current position
| Computed for: | 16 December 2025 |
| Right ascension: | 14h40m [1] |
| Declination: | −13°34' [1] |
| Constellation: | Libra |
| Magnitude: | 12.95 (V) [1] |
| Distance: | 3.25 AU 27.01 lightmin [1] |
Orbital elements [1]
| Semi-major axis: | 2.43 AU |
| Eccentricity: | 0.164784 |
| Inclination: | 3.06° |
| Longitude ascending node: | 80.84° |
| Argument of perihelion: | 249.94° |
| Epoch of elements: | 21 Nov 2025 |
| Mean Anomaly at epoch: | 246.81° |
| 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 |
Visibility from South El Monte
All times shown in South El Monte local time.
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 |
| 06 Jul 2049 | – Asteroid 21 Lutetia at opposition |
Printable finder charts
