(675) Ludmilla
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	19 Jul 2025	13.8	2.781 AU	3.592 AU	09h47m	+05°30'	31.8°	11.1°
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
2025-07-19 00:00 UT   09 47 53.8   +05 30 27     3.592    2.781   31.8   11.1   122   13.8 
2025-07-19 05:39 UT   09 48 15.0   +05 28 39     3.594    2.781   31.7   11.1   122   13.8 
2025-07-20 00:00 UT   09 49 24.0   +05 22 46     3.601    2.783   31.3   10.9   122   13.8 
2025-07-21 00:00 UT   09 50 54.2   +05 15 01     3.609    2.785   30.7   10.7   122   13.8 
2025-07-22 00:00 UT   09 52 24.5   +05 07 14     3.618    2.787   30.2   10.6   123   13.8 
2025-07-23 00:00 UT   09 53 54.7   +04 59 24     3.626    2.789   29.7   10.4   123   13.8 
2025-07-24 00:00 UT   09 55 24.9   +04 51 31     3.635    2.791   29.1   10.2   123   13.8 
2025-07-25 00:00 UT   09 56 55.1   +04 43 35     3.643    2.793   28.6   10.0   124   13.8 
2025-07-26 00:00 UT   09 58 25.3   +04 35 36     3.651    2.796   28.1    9.8   124   13.8 
2025-07-27 00:00 UT   09 59 55.4   +04 27 35     3.659    2.798   27.5    9.7   125   13.8 
2025-07-28 00:00 UT   10 01 25.5   +04 19 31     3.666    2.800   27.0    9.5   125   13.8 
2025-07-29 00:00 UT   10 02 55.6   +04 11 24     3.674    2.802   26.4    9.3   125   13.8 
2025-07-30 00:00 UT   10 04 25.7   +04 03 15     3.682    2.804   25.9    9.1   126   13.8 
2025-07-31 00:00 UT   10 05 55.7   +03 55 03     3.689    2.806   25.4    8.9   126   13.8 
2025-08-01 00:00 UT   10 07 25.6   +03 46 49     3.696    2.808   24.9    8.7   127   13.8 
2025-08-02 00:00 UT   10 08 55.6   +03 38 32     3.704    2.810   24.3    8.6   127   13.8 
2025-08-03 00:00 UT   10 10 25.5   +03 30 13     3.711    2.812   23.8    8.4   128   13.8 
2025-08-04 00:00 UT   10 11 55.3   +03 21 52     3.718    2.814   23.3    8.2   128   13.8 
2025-08-05 00:00 UT   10 13 25.1   +03 13 28     3.724    2.816   22.7    8.0   129   13.8 
2025-08-06 00:00 UT   10 14 54.8   +03 05 02     3.731    2.819   22.2    7.8   129   13.8 
2025-08-07 00:00 UT   10 16 24.5   +02 56 34     3.738    2.821   21.7    7.6   130   13.8 
2025-08-08 00:00 UT   10 17 54.1   +02 48 03     3.744    2.823   21.2    7.5   130   13.8 
2025-08-09 00:00 UT   10 19 23.7   +02 39 31     3.751    2.825   20.7    7.3   131   13.8 

    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.