(393) Lampetia
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	11 May 2025	14.9	3.541 AU	4.272 AU	05h50m	+12°12'	38.7°	10.3°
Opposition	29 Jan 2026	13.9	3.697 AU	2.756 AU	08h26m	-01°20'	160.1°	5.2°

The interactive orbit chart above shows the body's path through the solar system and its position at the given date. Green and blue lines are shown perpendicular to the ecliptic plane: Green if the path is above the ecliptic plane, blue if it is below. (Left-click and drag to rotate the view; Right-click and drag to move the view; Use scroll wheel to zoom in our out.)

The orbital elements of Lampetia are:

            e (Eccentricity)                : 0.3316198
            a (Semimajor axis)              : 2.7829407
            i (Inclination)                 : 14.83759
            Ω (Longitude of ascending node) : 212.22963
            ω (Argument of perihelion)      : 91.26217
            M (Mean anomaly)                : 133.16473
            Epoch                           : 2025 May 05

            L (Longitude of perihelion)     : 123.53532
            B (Latitude of perihelion)      : 14.83391
            P (Orbital period in years)     : 4.64            
        

The light curve chart below shows the estimated development of the minor planet's magnitude.

The all-sky chart below shows the path of the minor planet over the same period as the light curve. The current position is marked yellow.

The following chart shows the path of the minor planet in the next few days. The field of view is optimized for (~10x50) binoculars and finderscopes. A more printer-friendly version of the same chart can be found below.

Ephemerides:

Date       Time       RA (2000)    DEC (2000)    delta   radius  elong  phase   PA    magn
2025-05-11 00:00 UT   05 50 05.8   +12 12 45     4.272    3.541   38.7   10.3   103   14.9 
2025-05-11 13:31 UT   05 50 45.0   +12 13 19     4.278    3.542   38.4   10.2   104   14.9 
2025-05-12 00:00 UT   05 51 15.4   +12 13 44     4.283    3.543   38.1   10.1   104   14.9 
2025-05-13 00:00 UT   05 52 25.2   +12 14 41     4.293    3.544   37.4   10.0   104   14.9 
2025-05-14 00:00 UT   05 53 35.2   +12 15 34     4.303    3.546   36.8    9.8   105   14.9 
2025-05-15 00:00 UT   05 54 45.5   +12 16 23     4.313    3.547   36.2    9.7   105   14.9 
2025-05-16 00:00 UT   05 55 55.9   +12 17 09     4.323    3.549   35.5    9.5   106   14.9 
2025-05-17 00:00 UT   05 57 06.6   +12 17 52     4.332    3.550   34.9    9.4   106   14.9 
2025-05-18 00:00 UT   05 58 17.5   +12 18 31     4.342    3.552   34.3    9.2   107   14.9 
2025-05-19 00:00 UT   05 59 28.5   +12 19 07     4.351    3.553   33.6    9.1   107   14.9 
2025-05-20 00:00 UT   06 00 39.8   +12 19 39     4.360    3.555   33.0    8.9   108   14.9 
2025-05-21 00:00 UT   06 01 51.2   +12 20 08     4.369    3.556   32.4    8.8   108   14.9 
2025-05-22 00:00 UT   06 03 02.8   +12 20 34     4.378    3.558   31.8    8.6   109   14.9 
2025-05-23 00:00 UT   06 04 14.6   +12 20 55     4.387    3.559   31.1    8.5   109   14.9 
2025-05-24 00:00 UT   06 05 26.5   +12 21 14     4.396    3.561   30.5    8.3   110   14.9 
2025-05-25 00:00 UT   06 06 38.6   +12 21 29     4.404    3.562   29.9    8.1   111   14.9 
2025-05-26 00:00 UT   06 07 50.9   +12 21 40     4.412    3.564   29.3    8.0   111   14.9 
2025-05-27 00:00 UT   06 09 03.3   +12 21 47     4.420    3.565   28.7    7.8   112   14.9 
2025-05-28 00:00 UT   06 10 15.9   +12 21 51     4.428    3.566   28.1    7.7   113   14.9 
2025-05-29 00:00 UT   06 11 28.5   +12 21 52     4.436    3.568   27.5    7.5   113   14.9 
2025-05-30 00:00 UT   06 12 41.3   +12 21 49     4.444    3.569   26.9    7.4   114   14.9 
2025-05-31 00:00 UT   06 13 54.3   +12 21 42     4.451    3.571   26.3    7.2   115   14.9 
2025-06-01 00:00 UT   06 15 07.3   +12 21 32     4.459    3.572   25.7    7.1   115   14.9 
2025-06-02 00:00 UT   06 16 20.5   +12 21 18     4.466    3.573   25.1    6.9   116   14.9 
2025-06-03 00:00 UT   06 17 33.7   +12 21 00     4.473    3.575   24.5    6.8   117   14.9 
2025-06-04 00:00 UT   06 18 47.0   +12 20 39     4.479    3.576   23.9    6.6   118   14.9 
2025-06-05 00:00 UT   06 20 00.5   +12 20 14     4.486    3.577   23.4    6.5   119   14.9 
2025-06-06 00:00 UT   06 21 14.0   +12 19 46     4.493    3.579   22.8    6.3   120   14.9 
2025-06-07 00:00 UT   06 22 27.6   +12 19 13     4.499    3.580   22.2    6.2   121   14.9 
2025-06-08 00:00 UT   06 23 41.2   +12 18 38     4.505    3.581   21.7    6.0   122   14.9 

    Terminology:
            
    delta:  distance between minor planet and earth in AU
    radius: distance between minor planet and sun in AU
    magn:   magnitude (brightness) estimate    
    ra:     right ascension in hours (24h = 360deg)
    dec:    declination in degrees
    elong:  elongation in degrees (angle sun-earth-minor planet)    
    phase:  phase angle in degrees (angle sun-minor planet-earth)        
    AU:     Astronomical Unit (mean distance between earth and sun: 149597870.7 km
    

Orbital elements provided by the MPC (Minor Planet Center).
Calculations by a modified version of AAPlus, a C# implementation of the AA+ project by PJ Naughter from the algorithms presented in the book "Astronomical Algorithms" by Jean Meeus.
NGC2000 dso catalog and star labels from VizieR as provided by the Strasbourg astronomical Data Center.
Tycho2 catalog from the ESO archive.