(550) Senta
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	21 May 2026	15.4	3.093 AU	3.790 AU	06h43m	+19°58'	40.6°	12.3°
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
2026-05-21 00:00 UT   06 43 08.1   +19 58 19     3.790    3.093   40.6   12.3    98   15.4 
2026-05-21 03:04 UT   06 43 18.5   +19 58 01     3.792    3.093   40.5   12.3    98   15.4 
2026-05-22 00:00 UT   06 44 30.2   +19 55 60     3.800    3.094   40.0   12.1    98   15.4 
2026-05-23 00:00 UT   06 45 52.6   +19 53 38     3.811    3.095   39.4   12.0    98   15.4 
2026-05-24 00:00 UT   06 47 15.2   +19 51 13     3.820    3.096   38.7   11.8    99   15.4 
2026-05-25 00:00 UT   06 48 38.0   +19 48 45     3.830    3.097   38.1   11.6    99   15.4 
2026-05-26 00:00 UT   06 50 00.9   +19 46 15     3.840    3.098   37.5   11.5    99   15.4 
2026-05-27 00:00 UT   06 51 24.0   +19 43 41     3.850    3.099   36.8   11.3    99   15.4 
2026-05-28 00:00 UT   06 52 47.3   +19 41 04     3.859    3.100   36.2   11.1   100   15.4 
2026-05-29 00:00 UT   06 54 10.7   +19 38 24     3.868    3.101   35.6   11.0   100   15.4 
2026-05-30 00:00 UT   06 55 34.3   +19 35 40     3.877    3.102   35.0   10.8   100   15.4 
2026-05-31 00:00 UT   06 56 58.0   +19 32 54     3.886    3.103   34.3   10.6   100   15.4 
2026-06-01 00:00 UT   06 58 21.9   +19 30 05     3.895    3.103   33.7   10.5   101   15.4 
2026-06-02 00:00 UT   06 59 45.9   +19 27 12     3.904    3.104   33.1   10.3   101   15.4 
2026-06-03 00:00 UT   07 01 10.0   +19 24 17     3.913    3.105   32.5   10.1   101   15.4 
2026-06-04 00:00 UT   07 02 34.3   +19 21 18     3.921    3.106   31.9    9.9   101   15.4 
2026-06-05 00:00 UT   07 03 58.7   +19 18 16     3.929    3.107   31.3    9.8   102   15.4 
2026-06-06 00:00 UT   07 05 23.2   +19 15 10     3.937    3.108   30.6    9.6   102   15.4 
2026-06-07 00:00 UT   07 06 47.8   +19 12 02     3.946    3.109   30.0    9.4   102   15.4 
2026-06-08 00:00 UT   07 08 12.6   +19 08 50     3.953    3.110   29.4    9.2   103   15.4 
2026-06-09 00:00 UT   07 09 37.4   +19 05 35     3.961    3.110   28.8    9.0   103   15.4 
2026-06-10 00:00 UT   07 11 02.3   +19 02 17     3.969    3.111   28.2    8.9   103   15.4 
2026-06-11 00:00 UT   07 12 27.3   +18 58 56     3.976    3.112   27.6    8.7   104   15.4 
2026-06-12 00:00 UT   07 13 52.5   +18 55 31     3.984    3.113   27.0    8.5   104   15.4 
2026-06-13 00:00 UT   07 15 17.6   +18 52 04     3.991    3.114   26.4    8.3   104   15.4 
2026-06-14 00:00 UT   07 16 42.9   +18 48 32     3.998    3.115   25.8    8.1   105   15.4 
2026-06-15 00:00 UT   07 18 08.3   +18 44 58     4.005    3.115   25.1    8.0   105   15.4 

    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.