(675) Ludmilla
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	15 Sep 2025	13.7	2.899 AU	3.894 AU	11h13m	-02°56'	7.4°	2.6°
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
2025-09-15 00:00 UT   11 13 48.6   -02 56 55     3.894    2.899    7.4    2.6   215   13.7 
2025-09-15 22:55 UT   11 15 11.2   -03 05 58     3.895    2.901    7.6    2.6   219   13.7 
2025-09-16 00:00 UT   11 15 15.1   -03 06 24     3.895    2.901    7.6    2.6   219   13.7 
2025-09-17 00:00 UT   11 16 41.5   -03 15 54     3.896    2.903    7.8    2.7   223   13.7 
2025-09-18 00:00 UT   11 18 07.8   -03 25 24     3.897    2.905    8.0    2.8   227   13.7 
2025-09-19 00:00 UT   11 19 34.0   -03 34 55     3.898    2.907    8.2    2.8   231   13.7 
2025-09-20 00:00 UT   11 21 00.1   -03 44 27     3.899    2.909    8.5    2.9   235   13.7 
2025-09-21 00:00 UT   11 22 26.1   -03 53 59     3.899    2.911    8.8    3.0   238   13.7 
2025-09-22 00:00 UT   11 23 51.9   -04 03 32     3.900    2.913    9.2    3.2   241   13.7 
2025-09-23 00:00 UT   11 25 17.7   -04 13 05     3.900    2.915    9.6    3.3   244   13.7 
2025-09-24 00:00 UT   11 26 43.3   -04 22 39     3.900    2.917   10.0    3.4   246   13.8 
2025-09-25 00:00 UT   11 28 08.8   -04 32 14     3.900    2.919   10.4    3.5   249   13.8 
2025-09-26 00:00 UT   11 29 34.1   -04 41 48     3.900    2.921   10.8    3.7   251   13.8 
2025-09-27 00:00 UT   11 30 59.4   -04 51 23     3.900    2.923   11.2    3.8   253   13.8 
2025-09-28 00:00 UT   11 32 24.4   -05 00 58     3.899    2.925   11.7    4.0   255   13.8 
2025-09-29 00:00 UT   11 33 49.4   -05 10 33     3.898    2.927   12.2    4.1   257   13.8 
2025-09-30 00:00 UT   11 35 14.2   -05 20 09     3.898    2.929   12.6    4.3   258   13.8 
2025-10-01 00:00 UT   11 36 38.9   -05 29 45     3.897    2.931   13.1    4.4   260   13.8 
2025-10-02 00:00 UT   11 38 03.4   -05 39 21     3.896    2.932   13.6    4.6   261   13.8 
2025-10-03 00:00 UT   11 39 27.8   -05 48 56     3.895    2.934   14.1    4.8   263   13.8 
2025-10-04 00:00 UT   11 40 52.1   -05 58 32     3.893    2.936   14.6    4.9   264   13.8 
2025-10-05 00:00 UT   11 42 16.2   -06 08 08     3.892    2.938   15.2    5.1   265   13.9 
2025-10-06 00:00 UT   11 43 40.2   -06 17 44     3.890    2.940   15.7    5.3   266   13.9 

    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.