(23) Thalia
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Opposition	11 Mar 2024	9.7	2.128 AU	1.162 AU	11h58m	+20°01'	161.9°	8.4°
Today	16 Apr 2024	10.5	2.196 AU	1.350 AU	11h31m	+19°15'	137.3°	18.0°

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 Thalia are:

            e (Eccentricity)                : 0.2309681
            a (Semimajor axis)              : 2.6282569
            i (Inclination)                 : 10.10936
            Ω (Longitude of ascending node) : 66.49209
            ω (Argument of perihelion)      : 61.55759
            M (Mean anomaly)                : 31.55503
            Epoch                           : 2024 Mar 31

            L (Longitude of perihelion)     : 127.67263
            B (Latitude of perihelion)      : 8.87856
            P (Orbital period in years)     : 4.26            
        

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
2024-04-16 00:00 UT   11 31 27.9   +19 15 16     1.350    2.196  137.3   18.0   131   10.5 
2024-04-16 14:26 UT   11 31 15.5   +19 11 33     1.355    2.197  136.8   18.2   130   10.5 
2024-04-17 00:00 UT   11 31 07.6   +19 09 02     1.358    2.198  136.4   18.3   130   10.5 
2024-04-18 00:00 UT   11 30 49.1   +19 02 35     1.367    2.200  135.6   18.6   129   10.5 
2024-04-19 00:00 UT   11 30 32.4   +18 55 55     1.377    2.202  134.7   18.9   129   10.5 
2024-04-20 00:00 UT   11 30 17.5   +18 49 02     1.386    2.204  133.8   19.2   128   10.6 
2024-04-21 00:00 UT   11 30 04.3   +18 41 58     1.396    2.206  132.9   19.5   128   10.6 
2024-04-22 00:00 UT   11 29 53.0   +18 34 42     1.405    2.208  132.0   19.8   127   10.6 
2024-04-23 00:00 UT   11 29 43.4   +18 27 15     1.415    2.210  131.1   20.0   126   10.6 
2024-04-24 00:00 UT   11 29 35.6   +18 19 37     1.425    2.212  130.2   20.3   126   10.7 
2024-04-25 00:00 UT   11 29 29.6   +18 11 49     1.435    2.214  129.4   20.6   125   10.7 
2024-04-26 00:00 UT   11 29 25.3   +18 03 50     1.445    2.217  128.5   20.8   125   10.7 
2024-04-27 00:00 UT   11 29 22.8   +17 55 41     1.456    2.219  127.6   21.0   125   10.7 
2024-04-28 00:00 UT   11 29 22.0   +17 47 23     1.466    2.221  126.8   21.3   124   10.8 
2024-04-29 00:00 UT   11 29 22.9   +17 38 55     1.477    2.223  125.9   21.5   124   10.8 
2024-04-30 00:00 UT   11 29 25.5   +17 30 18     1.488    2.225  125.1   21.7   123   10.8 
2024-05-01 00:00 UT   11 29 29.8   +17 21 32     1.499    2.227  124.3   22.0   123   10.8 
2024-05-02 00:00 UT   11 29 35.7   +17 12 38     1.510    2.229  123.4   22.2   122   10.9 
2024-05-03 00:00 UT   11 29 43.4   +17 03 36     1.521    2.232  122.6   22.4   122   10.9 
2024-05-04 00:00 UT   11 29 52.6   +16 54 25     1.532    2.234  121.8   22.6   122   10.9 
2024-05-05 00:00 UT   11 30 03.5   +16 45 07     1.543    2.236  120.9   22.8   121   10.9 
2024-05-06 00:00 UT   11 30 16.0   +16 35 41     1.555    2.238  120.1   22.9   121   11.0 
2024-05-07 00:00 UT   11 30 30.1   +16 26 08     1.566    2.240  119.3   23.1   121   11.0 
2024-05-08 00:00 UT   11 30 45.8   +16 16 27     1.578    2.243  118.5   23.3   120   11.0 
2024-05-09 00:00 UT   11 31 03.0   +16 06 40     1.590    2.245  117.7   23.5   120   11.0 
2024-05-10 00:00 UT   11 31 21.8   +15 56 46     1.602    2.247  116.9   23.6   120   11.1 
2024-05-11 00:00 UT   11 31 42.0   +15 46 46     1.614    2.249  116.1   23.8   120   11.1 
2024-05-12 00:00 UT   11 32 03.8   +15 36 39     1.626    2.252  115.4   23.9   119   11.1 
2024-05-13 00:00 UT   11 32 27.0   +15 26 27     1.638    2.254  114.6   24.1   119   11.1 
2024-05-14 00:00 UT   11 32 51.7   +15 16 08     1.650    2.256  113.8   24.2   119   11.2 
2024-05-15 00:00 UT   11 33 17.8   +15 05 45     1.662    2.258  113.0   24.3   119   11.2 
2024-05-16 00:00 UT   11 33 45.3   +14 55 16     1.675    2.261  112.3   24.4   118   11.2 

    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.