(675) Ludmilla
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	20 May 2025	13.6	2.652 AU	2.899 AU	08h19m	+11°24'	65.9°	20.4°
Opposition	16 Apr 2026	12.8	3.230 AU	2.241 AU	13h21m	-21°22'	168.1°	3.7°

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 Ludmilla are:

            e (Eccentricity)                : 0.2050834
            a (Semimajor axis)              : 2.7674118
            i (Inclination)                 : 9.81107
            Ω (Longitude of ascending node) : 262.98830
            ω (Argument of perihelion)      : 152.37342
            M (Mean anomaly)                : 63.55169
            Epoch                           : 2025 May 05

            L (Longitude of perihelion)     : 235.70706
            B (Latitude of perihelion)      : 4.53199
            P (Orbital period in years)     : 4.60            
        

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
2025-05-20 00:00 UT   08 19 45.3   +11 24 14     2.899    2.652   65.9   20.4   107   13.6 
2025-05-20 20:42 UT   08 20 56.7   +11 20 52     2.911    2.654   65.4   20.3   107   13.6 
2025-05-21 00:00 UT   08 21 08.1   +11 20 20     2.913    2.654   65.3   20.3   107   13.6 
2025-05-22 00:00 UT   08 22 31.3   +11 16 21     2.927    2.656   64.7   20.1   107   13.6 
2025-05-23 00:00 UT   08 23 54.9   +11 12 18     2.940    2.659   64.1   20.0   108   13.6 
2025-05-24 00:00 UT   08 25 18.7   +11 08 10     2.954    2.661   63.5   19.9   108   13.6 
2025-05-25 00:00 UT   08 26 42.8   +11 03 58     2.968    2.663   62.9   19.8   108   13.6 
2025-05-26 00:00 UT   08 28 07.2   +10 59 41     2.981    2.665   62.3   19.7   108   13.6 
2025-05-27 00:00 UT   08 29 31.9   +10 55 21     2.994    2.667   61.7   19.5   108   13.6 
2025-05-28 00:00 UT   08 30 56.9   +10 50 56     3.008    2.669   61.1   19.4   109   13.6 
2025-05-29 00:00 UT   08 32 22.1   +10 46 26     3.021    2.672   60.5   19.3   109   13.7 
2025-05-30 00:00 UT   08 33 47.6   +10 41 52     3.034    2.674   59.9   19.1   109   13.7 
2025-05-31 00:00 UT   08 35 13.3   +10 37 14     3.048    2.676   59.3   19.0   109   13.7 
2025-06-01 00:00 UT   08 36 39.2   +10 32 32     3.061    2.678   58.7   18.9   109   13.7 
2025-06-02 00:00 UT   08 38 05.4   +10 27 45     3.074    2.680   58.1   18.7   110   13.7 
2025-06-03 00:00 UT   08 39 31.8   +10 22 54     3.087    2.682   57.5   18.6   110   13.7 
2025-06-04 00:00 UT   08 40 58.4   +10 17 59     3.099    2.684   56.9   18.5   110   13.7 
2025-06-05 00:00 UT   08 42 25.2   +10 12 60     3.112    2.687   56.4   18.3   110   13.7 
2025-06-06 00:00 UT   08 43 52.2   +10 07 56     3.125    2.689   55.8   18.2   111   13.7 
2025-06-07 00:00 UT   08 45 19.3   +10 02 49     3.138    2.691   55.2   18.0   111   13.7 
2025-06-08 00:00 UT   08 46 46.7   +09 57 37     3.150    2.693   54.6   17.9   111   13.7 
2025-06-09 00:00 UT   08 48 14.2   +09 52 21     3.163    2.695   54.1   17.8   111   13.7 
2025-06-10 00:00 UT   08 49 41.8   +09 47 01     3.175    2.697   53.5   17.6   111   13.7 
2025-06-11 00:00 UT   08 51 09.6   +09 41 37     3.188    2.700   52.9   17.5   112   13.7 
2025-06-12 00:00 UT   08 52 37.6   +09 36 09     3.200    2.702   52.3   17.3   112   13.7 

    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.