(24) Themis
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	25 Apr 2024	13.1	2.909 AU	3.579 AU	05h02m	+23°16'	41.9°	13.4°
Opposition	25 Feb 2025	10.8	2.787 AU	1.797 AU	10h38m	+09°39'	178.8°	0.4°

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 Themis are:

            e (Eccentricity)                : 0.1157381
            a (Semimajor axis)              : 3.1448709
            i (Inclination)                 : 0.73696
            Ω (Longitude of ascending node) : 36.42417
            ω (Argument of perihelion)      : 108.72117
            M (Mean anomaly)                : 310.96946
            Epoch                           : 2024 Mar 31

            L (Longitude of perihelion)     : -34.85322
            B (Latitude of perihelion)      : 0.69797
            P (Orbital period in years)     : 5.58            
        

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
2024-04-25 00:00 UT   05 02 39.5   +23 16 12     3.579    2.909   41.9   13.4    84   13.1 
2024-04-25 10:13 UT   05 03 19.3   +23 17 06     3.583    2.909   41.6   13.3    84   13.1 
2024-04-26 00:00 UT   05 04 13.1   +23 18 18     3.588    2.908   41.3   13.2    84   13.1 
2024-04-27 00:00 UT   05 05 47.2   +23 20 21     3.596    2.907   40.7   13.0    84   13.1 
2024-04-28 00:00 UT   05 07 21.6   +23 22 21     3.604    2.907   40.1   12.9    84   13.1 
2024-04-29 00:00 UT   05 08 56.4   +23 24 18     3.612    2.906   39.5   12.7    84   13.1 
2024-04-30 00:00 UT   05 10 31.6   +23 26 12     3.619    2.905   38.9   12.6    85   13.1 
2024-05-01 00:00 UT   05 12 07.1   +23 28 03     3.627    2.904   38.3   12.4    85   13.1 
2024-05-02 00:00 UT   05 13 43.0   +23 29 50     3.635    2.903   37.7   12.2    85   13.1 
2024-05-03 00:00 UT   05 15 19.3   +23 31 34     3.642    2.902   37.1   12.1    85   13.1 
2024-05-04 00:00 UT   05 16 55.8   +23 33 16     3.650    2.901   36.5   11.9    85   13.1 
2024-05-05 00:00 UT   05 18 32.8   +23 34 53     3.657    2.900   35.9   11.8    85   13.1 
2024-05-06 00:00 UT   05 20 10.0   +23 36 28     3.664    2.899   35.3   11.6    85   13.1 
2024-05-07 00:00 UT   05 21 47.6   +23 37 59     3.671    2.898   34.7   11.4    86   13.1 
2024-05-08 00:00 UT   05 23 25.5   +23 39 26     3.678    2.897   34.1   11.3    86   13.1 
2024-05-09 00:00 UT   05 25 03.7   +23 40 50     3.685    2.897   33.5   11.1    86   13.1 
2024-05-10 00:00 UT   05 26 42.3   +23 42 11     3.691    2.896   32.9   10.9    86   13.1 
2024-05-11 00:00 UT   05 28 21.1   +23 43 27     3.698    2.895   32.3   10.7    86   13.1 
2024-05-12 00:00 UT   05 30 00.2   +23 44 41     3.704    2.894   31.7   10.6    86   13.1 
2024-05-13 00:00 UT   05 31 39.6   +23 45 50     3.711    2.893   31.1   10.4    86   13.1 
2024-05-14 00:00 UT   05 33 19.2   +23 46 56     3.717    2.892   30.5   10.2    87   13.1 
2024-05-15 00:00 UT   05 34 59.1   +23 47 58     3.723    2.891   30.0   10.1    87   13.1 
2024-05-16 00:00 UT   05 36 39.3   +23 48 56     3.729    2.890   29.4    9.9    87   13.1 
2024-05-17 00:00 UT   05 38 19.7   +23 49 50     3.734    2.890   28.8    9.7    87   13.1 

    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.