(675) Ludmilla
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	2 Jul 2025	13.8	2.745 AU	3.428 AU	09h22m	+07°33'	41.1°	14.1°
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
2025-07-02 00:00 UT   09 22 21.0   +07 33 18     3.428    2.745   41.1   14.1   117   13.8 
2025-07-02 05:11 UT   09 22 40.4   +07 31 50     3.430    2.745   41.0   14.1   117   13.8 
2025-07-03 00:00 UT   09 23 51.0   +07 26 30     3.439    2.747   40.5   13.9   117   13.8 
2025-07-04 00:00 UT   09 25 21.0   +07 19 39     3.449    2.749   40.0   13.8   117   13.8 
2025-07-05 00:00 UT   09 26 51.0   +07 12 45     3.459    2.751   39.4   13.6   117   13.8 
2025-07-06 00:00 UT   09 28 21.1   +07 05 48     3.469    2.753   38.9   13.4   118   13.8 
2025-07-07 00:00 UT   09 29 51.2   +06 58 47     3.480    2.755   38.3   13.2   118   13.8 
2025-07-08 00:00 UT   09 31 21.4   +06 51 43     3.489    2.758   37.8   13.1   118   13.8 
2025-07-09 00:00 UT   09 32 51.5   +06 44 35     3.499    2.760   37.3   12.9   119   13.8 
2025-07-10 00:00 UT   09 34 21.7   +06 37 24     3.509    2.762   36.7   12.7   119   13.8 
2025-07-11 00:00 UT   09 35 51.9   +06 30 10     3.519    2.764   36.2   12.5   119   13.8 
2025-07-12 00:00 UT   09 37 22.1   +06 22 53     3.528    2.766   35.6   12.4   119   13.8 
2025-07-13 00:00 UT   09 38 52.3   +06 15 33     3.538    2.768   35.1   12.2   120   13.8 
2025-07-14 00:00 UT   09 40 22.6   +06 08 10     3.547    2.770   34.5   12.0   120   13.8 
2025-07-15 00:00 UT   09 41 52.8   +06 00 43     3.556    2.772   34.0   11.8   120   13.8 
2025-07-16 00:00 UT   09 43 23.0   +05 53 14     3.565    2.774   33.4   11.6   121   13.8 
2025-07-17 00:00 UT   09 44 53.3   +05 45 41     3.574    2.777   32.9   11.5   121   13.8 
2025-07-18 00:00 UT   09 46 23.5   +05 38 06     3.583    2.779   32.4   11.3   121   13.8 
2025-07-19 00:00 UT   09 47 53.8   +05 30 27     3.592    2.781   31.8   11.1   122   13.8 
2025-07-20 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 

    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.