(198) Ampella
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	12 Jul 2025	13.8	2.777 AU	2.555 AU	13h07m	-14°58'	91.6°	21.5°
Opposition	12 Sep 2026	10.4	1.903 AU	0.924 AU	22h51m	+13°40'	160.7°	10.1°

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 Ampella are:

            e (Eccentricity)                : 0.2273292
            a (Semimajor axis)              : 2.4587905
            i (Inclination)                 : 9.32322
            Ω (Longitude of ascending node) : 268.20220
            ω (Argument of perihelion)      : 89.06233
            M (Mean anomaly)                : 228.68729
            Epoch                           : 2025 May 05

            L (Longitude of perihelion)     : 357.25198
            B (Latitude of perihelion)      : 9.32196
            P (Orbital period in years)     : 3.86            
        

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
2025-07-12 00:00 UT   13 07 11.5   -14 58 54     2.555    2.777   91.6   21.5   112   13.8 
2025-07-12 07:22 UT   13 07 25.5   -14 59 03     2.559    2.776   91.4   21.5   112   13.8 
2025-07-13 00:00 UT   13 07 57.4   -14 59 28     2.567    2.775   90.9   21.5   112   13.8 
2025-07-14 00:00 UT   13 08 44.2   -15 00 10     2.578    2.773   90.1   21.5   113   13.8 
2025-07-15 00:00 UT   13 09 32.0   -15 00 60     2.590    2.771   89.3   21.5   113   13.8 
2025-07-16 00:00 UT   13 10 20.7   -15 01 56     2.602    2.769   88.6   21.5   113   13.8 
2025-07-17 00:00 UT   13 11 10.4   -15 02 60     2.613    2.767   87.8   21.5   113   13.8 
2025-07-18 00:00 UT   13 12 01.0   -15 04 11     2.625    2.766   87.1   21.5   113   13.9 
2025-07-19 00:00 UT   13 12 52.5   -15 05 28     2.636    2.764   86.3   21.5   113   13.9 
2025-07-20 00:00 UT   13 13 44.9   -15 06 52     2.648    2.762   85.6   21.5   113   13.9 
2025-07-21 00:00 UT   13 14 38.2   -15 08 23     2.659    2.760   84.8   21.5   113   13.9 
2025-07-22 00:00 UT   13 15 32.5   -15 10 01     2.671    2.758   84.1   21.5   113   13.9 
2025-07-23 00:00 UT   13 16 27.6   -15 11 45     2.682    2.756   83.4   21.5   113   13.9 
2025-07-24 00:00 UT   13 17 23.5   -15 13 36     2.694    2.754   82.6   21.5   113   13.9 
2025-07-25 00:00 UT   13 18 20.4   -15 15 32     2.705    2.752   81.9   21.4   113   13.9 
2025-07-26 00:00 UT   13 19 18.1   -15 17 35     2.717    2.751   81.2   21.4   113   13.9 
2025-07-27 00:00 UT   13 20 16.6   -15 19 45     2.728    2.749   80.5   21.4   113   13.9 
2025-07-28 00:00 UT   13 21 16.0   -15 21 60     2.739    2.747   79.7   21.3   113   13.9 
2025-07-29 00:00 UT   13 22 16.1   -15 24 21     2.751    2.745   79.0   21.3   113   13.9 
2025-07-30 00:00 UT   13 23 17.1   -15 26 47     2.762    2.743   78.3   21.3   113   13.9 
2025-07-31 00:00 UT   13 24 18.9   -15 29 20     2.773    2.741   77.6   21.2   113   13.9 
2025-08-01 00:00 UT   13 25 21.4   -15 31 57     2.784    2.739   76.9   21.2   113   13.9 
2025-08-02 00:00 UT   13 26 24.7   -15 34 41     2.795    2.737   76.2   21.1   113   14.0 
2025-08-03 00:00 UT   13 27 28.8   -15 37 29     2.806    2.735   75.5   21.1   113   14.0 
2025-08-04 00:00 UT   13 28 33.7   -15 40 23     2.817    2.733   74.8   21.0   113   14.0 
2025-08-05 00:00 UT   13 29 39.3   -15 43 21     2.828    2.731   74.1   20.9   113   14.0 
2025-08-06 00:00 UT   13 30 45.6   -15 46 25     2.839    2.729   73.4   20.9   113   14.0 
2025-08-07 00:00 UT   13 31 52.6   -15 49 33     2.850    2.727   72.8   20.8   113   14.0 
2025-08-08 00:00 UT   13 33 00.4   -15 52 46     2.861    2.725   72.1   20.7   113   14.0 
2025-08-09 00:00 UT   13 34 08.9   -15 56 04     2.872    2.723   71.4   20.7   113   14.0 
2025-08-10 00:00 UT   13 35 18.0   -15 59 26     2.882    2.721   70.7   20.6   113   14.0 
2025-08-11 00:00 UT   13 36 27.9   -16 02 52     2.893    2.719   70.0   20.5   113   14.0 

    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.