(110) Lydia
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	27 Nov 2025	12.8	2.523 AU	2.384 AU	22h20m	-16°20'	86.4°	23.0°
Opposition	16 Dec 2026	11.5	2.774 AU	1.792 AU	05h35m	+27°37'	175.7°	1.5°

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 Lydia are:

            e (Eccentricity)                : 0.0791000
            a (Semimajor axis)              : 2.7327035
            i (Inclination)                 : 5.95940
            Ω (Longitude of ascending node) : 56.76338
            ω (Argument of perihelion)      : 282.24106
            M (Mean anomaly)                : 11.46473
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : -20.93107
            B (Latitude of perihelion)      : -5.82343
            P (Orbital period in years)     : 4.52            
        

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.

Ephemerides:

Date       Time       RA (2000)    DEC (2000)    delta   radius  elong  phase   PA    magn
2025-11-27 00:00 UT   22 20 34.8   -16 20 20     2.384    2.523   86.4   23.0    69   12.8 
2025-11-27 01:08 UT   22 20 37.7   -16 19 56     2.385    2.523   86.4   23.0    69   12.8 
2025-11-28 00:00 UT   22 21 36.8   -16 11 46     2.397    2.523   85.7   23.0    69   12.8 
2025-11-29 00:00 UT   22 22 39.7   -16 03 07     2.410    2.523   85.0   22.9    69   12.8 
2025-11-30 00:00 UT   22 23 43.3   -15 54 23     2.424    2.523   84.3   22.9    69   12.9 
2025-12-01 00:00 UT   22 24 47.8   -15 45 36     2.437    2.524   83.5   22.8    69   12.9 
2025-12-02 00:00 UT   22 25 53.0   -15 36 45     2.450    2.524   82.8   22.8    69   12.9 
2025-12-03 00:00 UT   22 26 58.9   -15 27 50     2.463    2.524   82.1   22.8    69   12.9 
2025-12-04 00:00 UT   22 28 05.6   -15 18 50     2.476    2.524   81.4   22.7    69   12.9 
2025-12-05 00:00 UT   22 29 13.0   -15 09 47     2.489    2.525   80.7   22.7    69   12.9 
2025-12-06 00:00 UT   22 30 21.1   -15 00 41     2.502    2.525   80.0   22.6    69   12.9 
2025-12-07 00:00 UT   22 31 29.8   -14 51 30     2.515    2.525   79.3   22.5    69   12.9 
2025-12-08 00:00 UT   22 32 39.3   -14 42 16     2.528    2.525   78.6   22.5    69   12.9 
2025-12-09 00:00 UT   22 33 49.4   -14 32 58     2.541    2.526   77.9   22.4    69   12.9 
2025-12-10 00:00 UT   22 35 00.1   -14 23 36     2.554    2.526   77.2   22.4    69   13.0 
2025-12-11 00:00 UT   22 36 11.5   -14 14 11     2.567    2.526   76.6   22.3    69   13.0 
2025-12-12 00:00 UT   22 37 23.5   -14 04 42     2.579    2.526   75.9   22.2    69   13.0 
2025-12-13 00:00 UT   22 38 36.1   -13 55 10     2.592    2.527   75.2   22.1    69   13.0 
2025-12-14 00:00 UT   22 39 49.3   -13 45 34     2.605    2.527   74.5   22.1    69   13.0 
2025-12-15 00:00 UT   22 41 03.2   -13 35 55     2.618    2.527   73.8   22.0    69   13.0 
2025-12-16 00:00 UT   22 42 17.6   -13 26 12     2.631    2.528   73.2   21.9    69   13.0 
2025-12-17 00:00 UT   22 43 32.5   -13 16 26     2.643    2.528   72.5   21.8    69   13.0 
2025-12-18 00:00 UT   22 44 48.0   -13 06 36     2.656    2.528   71.8   21.7    69   13.0 
2025-12-19 00:00 UT   22 46 04.1   -12 56 43     2.669    2.528   71.1   21.6    69   13.0 
2025-12-20 00:00 UT   22 47 20.7   -12 46 47     2.681    2.529   70.5   21.5    69   13.0 
2025-12-21 00:00 UT   22 48 37.8   -12 36 48     2.694    2.529   69.8   21.4    69   13.0 
2025-12-22 00:00 UT   22 49 55.4   -12 26 46     2.706    2.529   69.2   21.3    69   13.0 
2025-12-23 00:00 UT   22 51 13.5   -12 16 41     2.719    2.530   68.5   21.2    69   13.1 

    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.