(550) Senta
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	19 Apr 2024	13.5	2.175 AU	1.766 AU	19h24m	-23°53'	99.8°	27.1°
Opposition	13 Jul 2024	11.3	2.045 AU	1.033 AU	19h30m	-14°27'	172.7°	3.6°

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)                : 0.2222822
            a (Semimajor axis)              : 2.5891285
            i (Inclination)                 : 10.10631
            Ω (Longitude of ascending node) : 270.66038
            ω (Argument of perihelion)      : 45.18462
            M (Mean anomaly)                : 320.32482
            Epoch                           : 2024 Mar 31

            L (Longitude of perihelion)     : 315.39702
            B (Latitude of perihelion)      : 7.15066
            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. 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
2024-04-19 00:00 UT   19 24 37.7   -23 53 00     1.766    2.175   99.8   27.1   262   13.5 
2024-04-19 00:10 UT   19 24 38.2   -23 52 58     1.766    2.175   99.8   27.1   262   13.5 
2024-04-20 00:00 UT   19 25 51.6   -23 47 00     1.753    2.173  100.5   27.0   262   13.5 
2024-04-21 00:00 UT   19 27 04.2   -23 40 57     1.740    2.171  101.2   27.0   262   13.5 
2024-04-22 00:00 UT   19 28 15.6   -23 34 50     1.727    2.170  101.9   27.0   262   13.5 
2024-04-23 00:00 UT   19 29 25.8   -23 28 41     1.714    2.168  102.6   26.9   262   13.4 
2024-04-24 00:00 UT   19 30 34.7   -23 22 28     1.701    2.166  103.3   26.9   262   13.4 
2024-04-25 00:00 UT   19 31 42.3   -23 16 12     1.688    2.164  104.0   26.8   261   13.4 
2024-04-26 00:00 UT   19 32 48.6   -23 09 53     1.675    2.162  104.7   26.8   261   13.4 
2024-04-27 00:00 UT   19 33 53.6   -23 03 32     1.663    2.160  105.4   26.7   261   13.4 
2024-04-28 00:00 UT   19 34 57.2   -22 57 08     1.650    2.158  106.1   26.6   261   13.3 
2024-04-29 00:00 UT   19 35 59.4   -22 50 41     1.637    2.156  106.8   26.6   261   13.3 
2024-04-30 00:00 UT   19 37 00.2   -22 44 11     1.625    2.154  107.5   26.5   261   13.3 
2024-05-01 00:00 UT   19 37 59.6   -22 37 39     1.612    2.152  108.3   26.4   261   13.3 
2024-05-02 00:00 UT   19 38 57.5   -22 31 05     1.600    2.151  109.0   26.3   261   13.3 
2024-05-03 00:00 UT   19 39 54.0   -22 24 28     1.587    2.149  109.7   26.2   261   13.2 
2024-05-04 00:00 UT   19 40 48.9   -22 17 50     1.575    2.147  110.5   26.1   261   13.2 
2024-05-05 00:00 UT   19 41 42.3   -22 11 09     1.563    2.145  111.2   26.0   260   13.2 
2024-05-06 00:00 UT   19 42 34.2   -22 04 26     1.551    2.143  112.0   25.9   260   13.2 
2024-05-07 00:00 UT   19 43 24.5   -21 57 41     1.539    2.141  112.7   25.8   260   13.1 
2024-05-08 00:00 UT   19 44 13.1   -21 50 54     1.527    2.140  113.5   25.6   260   13.1 
2024-05-09 00:00 UT   19 45 00.2   -21 44 06     1.515    2.138  114.3   25.5   260   13.1 
2024-05-10 00:00 UT   19 45 45.6   -21 37 16     1.503    2.136  115.0   25.4   260   13.1 
2024-05-11 00:00 UT   19 46 29.4   -21 30 25     1.491    2.134  115.8   25.2   260   13.1 
2024-05-12 00:00 UT   19 47 11.5   -21 23 32     1.479    2.132  116.6   25.1   260   13.0 
2024-05-13 00:00 UT   19 47 51.9   -21 16 37     1.468    2.131  117.4   24.9   260   13.0 
2024-05-14 00:00 UT   19 48 30.6   -21 09 42     1.456    2.129  118.2   24.7   260   13.0 
2024-05-15 00:00 UT   19 49 07.5   -21 02 45     1.445    2.127  119.0   24.6   259   13.0 
2024-05-16 00:00 UT   19 49 42.7   -20 55 47     1.433    2.126  119.8   24.4   259   12.9 
2024-05-17 00:00 UT   19 50 16.1   -20 48 48     1.422    2.124  120.6   24.2   259   12.9 
2024-05-18 00:00 UT   19 50 47.8   -20 41 48     1.411    2.122  121.4   24.0   259   12.9 
2024-05-19 00:00 UT   19 51 17.6   -20 34 47     1.400    2.120  122.3   23.8   259   12.9 

    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.