21 Lutetia (Asteroid)

© ESA/Rosetta 2010

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From Cambridge , 21 Lutetia will become visible at around 21:10 (EDT), 54° above your south-western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting at 02:22.

Name 21 Lutetia
Object type Asteroid
Current position
Computed for:09 May 2025
Right ascension:09h39m [1]
Declination:+17°28' [1]
Constellation:Leo
Magnitude:12.84 (V) [1]
Distance:2.58 AU
21.49 lightmin [1]
Angular motion (speed):11.50 arcmin/day[1]
Angular motion (pos ang):287.2°
Orbital elements [1]
Semi-major axis:2.43 AU
Eccentricity:0.164755
Inclination:3.06°
Longitude ascending node:80.84°
Argument of perihelion:250.00°
Epoch of elements:25 January 2025
Mean Anomaly at epoch:168.86°
Absolute mag (H):7.50 [1]
Slope parameter (G):0.15 [1]
Derived quantities
Perihelion:2.03 AU
Aphelion:2.83 AU
Orbital period:3.80 years
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
07 Jul 2049  –  Asteroid 21 Lutetia at opposition
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