(550) Senta
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Opposition	17 Dec 2025	13.1	2.873 AU	1.889 AU	05h44m	+24°37'	178.4°	0.6°
Today	15 Feb 2026	14.6	2.974 AU	2.446 AU	05h12m	+21°40'	113.0°	17.8°

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
2026-02-15 00:00 UT   05 12 20.7   +21 40 07     2.446    2.974  113.0   17.8    85   14.6 
2026-02-15 01:17 UT   05 12 21.4   +21 40 02     2.447    2.974  112.9   17.8    85   14.6 
2026-02-16 00:00 UT   05 12 34.0   +21 38 35     2.461    2.976  112.0   17.9    85   14.6 
2026-02-17 00:00 UT   05 12 48.8   +21 37 06     2.476    2.977  111.1   18.0    85   14.6 
2026-02-18 00:00 UT   05 13 05.0   +21 35 41     2.490    2.979  110.1   18.2    85   14.6 
2026-02-19 00:00 UT   05 13 22.6   +21 34 18     2.505    2.980  109.2   18.3    85   14.6 
2026-02-20 00:00 UT   05 13 41.6   +21 32 58     2.521    2.982  108.2   18.4    85   14.7 
2026-02-21 00:00 UT   05 14 02.0   +21 31 41     2.536    2.983  107.3   18.4    85   14.7 
2026-02-22 00:00 UT   05 14 23.8   +21 30 26     2.551    2.985  106.4   18.5    85   14.7 
2026-02-23 00:00 UT   05 14 46.9   +21 29 14     2.566    2.986  105.5   18.6    85   14.7 
2026-02-24 00:00 UT   05 15 11.4   +21 28 05     2.581    2.988  104.6   18.7    85   14.7 
2026-02-25 00:00 UT   05 15 37.2   +21 26 58     2.597    2.989  103.6   18.8    85   14.7 
2026-02-26 00:00 UT   05 16 04.2   +21 25 54     2.612    2.991  102.7   18.8    85   14.8 
2026-02-27 00:00 UT   05 16 32.5   +21 24 52     2.628    2.992  101.8   18.9    85   14.8 
2026-02-28 00:00 UT   05 17 02.1   +21 23 52     2.643    2.994  101.0   19.0    85   14.8 
2026-03-01 00:00 UT   05 17 32.9   +21 22 54     2.659    2.995  100.1   19.0    85   14.8 
2026-03-02 00:00 UT   05 18 04.8   +21 21 58     2.674    2.997   99.2   19.1    86   14.8 
2026-03-03 00:00 UT   05 18 38.0   +21 21 04     2.690    2.998   98.3   19.1    86   14.8 
2026-03-04 00:00 UT   05 19 12.3   +21 20 12     2.705    2.999   97.4   19.1    86   14.8 
2026-03-05 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 

    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.