(550) Senta
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	4 Mar 2026	14.8	2.999 AU	2.705 AU	05h19m	+21°20'	97.4°	19.1°
Opposition	25 Feb 2027	13.8	3.108 AU	2.137 AU	10h12m	-03°22'	166.5°	4.3°

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 Senta are:

            e (Eccentricity)                : 0.2220037
            a (Semimajor axis)              : 2.5899911
            i (Inclination)                 : 10.10609
            Ω (Longitude of ascending node) : 270.66097
            ω (Argument of perihelion)      : 45.35392
            M (Mean anomaly)                : 102.12779
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 315.56693
            B (Latitude of perihelion)      : 7.17158
            P (Orbital period in years)     : 4.17            
        

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.

Ephemerides:

Date       Time       RA (2000)    DEC (2000)    delta   radius  elong  phase   PA    magn
2026-03-04 00:00 UT   05 19 12.3   +21 20 12     2.705    2.999   97.4   19.1    86   14.8 
2026-03-04 13:20 UT   05 19 31.9   +21 19 44     2.714    3.000   97.0   19.2    86   14.9 
2026-03-05 00:00 UT   05 19 47.8   +21 19 22     2.721    3.001   96.6   19.2    86   14.9 
2026-03-06 00:00 UT   05 20 24.4   +21 18 33     2.737    3.002   95.7   19.2    86   14.9 
2026-03-07 00:00 UT   05 21 02.2   +21 17 46     2.752    3.004   94.9   19.2    86   14.9 
2026-03-08 00:00 UT   05 21 41.0   +21 17 01     2.768    3.005   94.0   19.2    86   14.9 
2026-03-09 00:00 UT   05 22 20.9   +21 16 17     2.784    3.007   93.2   19.2    86   14.9 
2026-03-10 00:00 UT   05 23 01.8   +21 15 34     2.799    3.008   92.3   19.3    86   14.9 
2026-03-11 00:00 UT   05 23 43.8   +21 14 52     2.815    3.009   91.5   19.3    86   14.9 
2026-03-12 00:00 UT   05 24 26.9   +21 14 12     2.831    3.011   90.7   19.3    86   15.0 
2026-03-13 00:00 UT   05 25 10.9   +21 13 33     2.846    3.012   89.8   19.3    87   15.0 
2026-03-14 00:00 UT   05 25 56.0   +21 12 54     2.862    3.014   89.0   19.3    87   15.0 
2026-03-15 00:00 UT   05 26 42.0   +21 12 17     2.878    3.015   88.2   19.2    87   15.0 
2026-03-16 00:00 UT   05 27 29.0   +21 11 40     2.893    3.016   87.4   19.2    87   15.0 
2026-03-17 00:00 UT   05 28 17.0   +21 11 04     2.909    3.018   86.6   19.2    87   15.0 
2026-03-18 00:00 UT   05 29 05.8   +21 10 29     2.925    3.019   85.8   19.2    87   15.0 
2026-03-19 00:00 UT   05 29 55.6   +21 09 54     2.940    3.020   85.0   19.2    87   15.0 
2026-03-20 00:00 UT   05 30 46.4   +21 09 20     2.956    3.022   84.2   19.1    87   15.1 
2026-03-21 00:00 UT   05 31 38.0   +21 08 46     2.972    3.023   83.4   19.1    87   15.1 
2026-03-22 00:00 UT   05 32 30.4   +21 08 12     2.987    3.024   82.6   19.1    88   15.1 
2026-03-23 00:00 UT   05 33 23.8   +21 07 38     3.003    3.026   81.8   19.0    88   15.1 
2026-03-24 00:00 UT   05 34 17.9   +21 07 05     3.018    3.027   81.0   19.0    88   15.1 
2026-03-25 00:00 UT   05 35 12.9   +21 06 31     3.034    3.028   80.2   18.9    88   15.1 
2026-03-26 00:00 UT   05 36 08.7   +21 05 57     3.049    3.030   79.5   18.9    88   15.1 
2026-03-27 00:00 UT   05 37 05.3   +21 05 23     3.064    3.031   78.7   18.8    88   15.1 
2026-03-28 00:00 UT   05 38 02.6   +21 04 49     3.080    3.032   77.9   18.8    88   15.1 
2026-03-29 00:00 UT   05 39 00.7   +21 04 15     3.095    3.034   77.2   18.7    88   15.2 
2026-03-30 00:00 UT   05 39 59.6   +21 03 40     3.110    3.035   76.4   18.7    89   15.2 
2026-03-31 00:00 UT   05 40 59.1   +21 03 05     3.125    3.036   75.6   18.6    89   15.2 
2026-04-01 00:00 UT   05 41 59.4   +21 02 29     3.141    3.037   74.9   18.5    89   15.2 
2026-04-02 00:00 UT   05 43 00.4   +21 01 52     3.156    3.039   74.1   18.4    89   15.2 
2026-04-03 00:00 UT   05 44 02.0   +21 01 15     3.171    3.040   73.4   18.4    89   15.2 

    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.