(675) Ludmilla
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Opposition	12 Jan 2025	11.1	2.389 AU	1.412 AU	07h33m	+13°15'	171.6°	3.4°
Today	22 Jan 2025	11.3	2.407 AU	1.440 AU	07h24m	+13°03'	165.9°	5.7°

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)                : 0.2053205
            a (Semimajor axis)              : 2.7688841
            i (Inclination)                 : 9.81059
            Ω (Longitude of ascending node) : 262.98710
            ω (Argument of perihelion)      : 152.49533
            M (Mean anomaly)                : 20.63748
            Epoch                           : 2024 Oct 17

            L (Longitude of perihelion)     : 235.82671
            B (Latitude of perihelion)      : 4.51329
            P (Orbital period in years)     : 4.61            
        

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
2025-01-22 00:00 UT   07 24 40.6   +13 03 42     1.440    2.407  165.9    5.7    60   11.3 
2025-01-22 04:45 UT   07 24 29.6   +13 03 31     1.441    2.407  165.7    5.8    61   11.3 
2025-01-23 00:00 UT   07 23 45.4   +13 02 50     1.445    2.409  164.9    6.1    63   11.3 
2025-01-24 00:00 UT   07 22 51.3   +13 02 03     1.450    2.411  163.9    6.5    65   11.4 
2025-01-25 00:00 UT   07 21 58.2   +13 01 21     1.454    2.413  162.8    6.9    67   11.4 
2025-01-26 00:00 UT   07 21 06.2   +13 00 42     1.460    2.415  161.7    7.3    69   11.4 
2025-01-27 00:00 UT   07 20 15.4   +13 00 08     1.465    2.416  160.7    7.8    71   11.4 
2025-01-28 00:00 UT   07 19 25.9   +12 59 38     1.471    2.418  159.6    8.2    72   11.5 
2025-01-29 00:00 UT   07 18 37.6   +12 59 11     1.477    2.420  158.5    8.6    74   11.5 
2025-01-30 00:00 UT   07 17 50.7   +12 58 49     1.483    2.422  157.4    9.0    75   11.5 
2025-01-31 00:00 UT   07 17 05.2   +12 58 30     1.490    2.424  156.2    9.4    76   11.6 
2025-02-01 00:00 UT   07 16 21.2   +12 58 15     1.496    2.426  155.1    9.8    77   11.6 
2025-02-02 00:00 UT   07 15 38.7   +12 58 03     1.503    2.428  154.0   10.2    78   11.6 
2025-02-03 00:00 UT   07 14 57.8   +12 57 54     1.511    2.430  152.9   10.6    79   11.6 
2025-02-04 00:00 UT   07 14 18.4   +12 57 48     1.518    2.432  151.8   11.0    80   11.7 
2025-02-05 00:00 UT   07 13 40.7   +12 57 45     1.526    2.434  150.7   11.4    80   11.7 
2025-02-06 00:00 UT   07 13 04.6   +12 57 46     1.534    2.436  149.6   11.8    81   11.7 
2025-02-07 00:00 UT   07 12 30.2   +12 57 48     1.542    2.438  148.5   12.2    82   11.8 
2025-02-08 00:00 UT   07 11 57.5   +12 57 53     1.550    2.440  147.4   12.6    82   11.8 
2025-02-09 00:00 UT   07 11 26.6   +12 58 01     1.559    2.442  146.3   13.0    83   11.8 
2025-02-10 00:00 UT   07 10 57.4   +12 58 11     1.567    2.444  145.2   13.3    83   11.8 
2025-02-11 00:00 UT   07 10 30.0   +12 58 23     1.576    2.446  144.1   13.7    84   11.9 
2025-02-12 00:00 UT   07 10 04.3   +12 58 37     1.586    2.448  143.1   14.0    84   11.9 
2025-02-13 00:00 UT   07 09 40.4   +12 58 53     1.595    2.450  142.0   14.4    85   11.9 
2025-02-14 00:00 UT   07 09 18.4   +12 59 11     1.604    2.452  140.9   14.7    85   11.9 
2025-02-15 00:00 UT   07 08 58.1   +12 59 30     1.614    2.454  139.9   15.0    85   12.0 
2025-02-16 00:00 UT   07 08 39.7   +12 59 51     1.624    2.456  138.8   15.4    86   12.0 
2025-02-17 00:00 UT   07 08 23.1   +13 00 13     1.634    2.458  137.8   15.7    86   12.0 
2025-02-18 00:00 UT   07 08 08.3   +13 00 36     1.645    2.460  136.7   16.0    87   12.1 
2025-02-19 00:00 UT   07 07 55.3   +13 01 01     1.655    2.462  135.7   16.3    87   12.1 
2025-02-20 00:00 UT   07 07 44.2   +13 01 26     1.666    2.464  134.7   16.6    87   12.1 
2025-02-21 00:00 UT   07 07 34.9   +13 01 53     1.677    2.466  133.7   16.9    88   12.1 

    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.