(110) Lydia
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	28 Jul 2026	13.4	2.659 AU	3.137 AU	04h38m	+21°49'	53.4°	17.8°
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)                : 0.0789471
            a (Semimajor axis)              : 2.7322376
            i (Inclination)                 : 5.95969
            Ω (Longitude of ascending node) : 56.76090
            ω (Argument of perihelion)      : 282.20049
            M (Mean anomaly)                : 55.15420
            Epoch                           : 2026 Jun 09

            L (Longitude of perihelion)     : -20.97431
            B (Latitude of perihelion)      : -5.82461
            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
2026-07-28 00:00 UT   04 38 54.6   +21 49 47     3.137    2.659   53.4   17.8   262   13.4 
2026-07-28 12:21 UT   04 39 42.0   +21 51 55     3.132    2.659   53.7   17.9   262   13.4 
2026-07-29 00:00 UT   04 40 26.7   +21 53 54     3.127    2.660   54.0   18.0   262   13.4 
2026-07-30 00:00 UT   04 41 58.4   +21 57 57     3.117    2.660   54.5   18.1   262   13.4 
2026-07-31 00:00 UT   04 43 29.7   +22 01 56     3.108    2.661   55.1   18.2   262   13.4 
2026-08-01 00:00 UT   04 45 00.6   +22 05 52     3.098    2.662   55.7   18.4   263   13.4 
2026-08-02 00:00 UT   04 46 31.2   +22 09 44     3.088    2.663   56.3   18.5   263   13.4 
2026-08-03 00:00 UT   04 48 01.3   +22 13 33     3.078    2.664   57.0   18.6   263   13.4 
2026-08-04 00:00 UT   04 49 31.1   +22 17 18     3.067    2.664   57.6   18.7   263   13.4 
2026-08-05 00:00 UT   04 51 00.4   +22 20 60     3.057    2.665   58.2   18.9   263   13.3 
2026-08-06 00:00 UT   04 52 29.3   +22 24 38     3.047    2.666   58.8   19.0   263   13.3 
2026-08-07 00:00 UT   04 53 57.8   +22 28 13     3.036    2.667   59.4   19.1   263   13.3 
2026-08-08 00:00 UT   04 55 25.8   +22 31 45     3.026    2.668   60.0   19.2   264   13.3 
2026-08-09 00:00 UT   04 56 53.3   +22 35 13     3.015    2.668   60.6   19.3   264   13.3 
2026-08-10 00:00 UT   04 58 20.3   +22 38 38     3.005    2.669   61.2   19.4   264   13.3 
2026-08-11 00:00 UT   04 59 46.9   +22 41 60     2.994    2.670   61.9   19.6   264   13.3 
2026-08-12 00:00 UT   05 01 13.0   +22 45 19     2.983    2.671   62.5   19.7   264   13.3 
2026-08-13 00:00 UT   05 02 38.5   +22 48 34     2.972    2.672   63.1   19.8   264   13.3 
2026-08-14 00:00 UT   05 04 03.5   +22 51 46     2.961    2.672   63.7   19.9   265   13.3 
2026-08-15 00:00 UT   05 05 28.0   +22 54 56     2.950    2.673   64.4   20.0   265   13.3 
2026-08-16 00:00 UT   05 06 51.9   +22 58 02     2.939    2.674   65.0   20.1   265   13.3 
2026-08-17 00:00 UT   05 08 15.3   +23 01 06     2.928    2.675   65.7   20.2   265   13.3 
2026-08-18 00:00 UT   05 09 38.0   +23 04 06     2.917    2.676   66.3   20.3   265   13.3 
2026-08-19 00:00 UT   05 11 00.2   +23 07 04     2.906    2.676   66.9   20.4   265   13.3 
2026-08-20 00:00 UT   05 12 21.8   +23 09 59     2.894    2.677   67.6   20.5   265   13.3 
2026-08-21 00:00 UT   05 13 42.8   +23 12 51     2.883    2.678   68.2   20.5   266   13.3 
2026-08-22 00:00 UT   05 15 03.2   +23 15 41     2.872    2.679   68.9   20.6   266   13.3 

    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.