(40) Harmonia
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	6 Oct 2022	12.3	2.310 AU	2.772 AU	09h29m	+16°22'	52.8°	20.2°
Opposition	27 Feb 2023	10.1	2.362 AU	1.376 AU	10h51m	+14°24'	173.4°	2.8°

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 Harmonia are:

            e (Eccentricity)                : 0.0463861
            a (Semimajor axis)              : 2.2669765
            i (Inclination)                 : 4.25581
            Ω (Longitude of ascending node) : 94.16651
            ω (Argument of perihelion)      : 268.74468
            M (Mean anomaly)                : 94.97177
            Epoch                           : 2022 Aug 09

            L (Longitude of perihelion)     : 182.90772
            B (Latitude of perihelion)      : -4.25479
            P (Orbital period in years)     : 3.41            
        

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
2022-10-06 00:00 UT   09 29 58.4   +16 22 57     2.772    2.310   52.8   20.2   290   12.3 
2022-10-06 17:00 UT   09 31 10.7   +16 18 07     2.765    2.310   53.2   20.3   290   12.3 
2022-10-07 00:00 UT   09 31 40.4   +16 16 08     2.762    2.310   53.4   20.3   290   12.3 
2022-10-08 00:00 UT   09 33 21.9   +16 09 18     2.753    2.311   54.0   20.5   290   12.3 
2022-10-09 00:00 UT   09 35 02.9   +16 02 28     2.743    2.311   54.5   20.6   290   12.3 
2022-10-10 00:00 UT   09 36 43.4   +15 55 38     2.733    2.312   55.1   20.8   290   12.3 
2022-10-11 00:00 UT   09 38 23.5   +15 48 47     2.723    2.312   55.7   20.9   290   12.3 
2022-10-12 00:00 UT   09 40 03.0   +15 41 56     2.713    2.313   56.3   21.0   290   12.3 
2022-10-13 00:00 UT   09 41 42.1   +15 35 06     2.703    2.313   56.8   21.2   290   12.3 
2022-10-14 00:00 UT   09 43 20.7   +15 28 16     2.693    2.314   57.4   21.3   290   12.3 
2022-10-15 00:00 UT   09 44 58.8   +15 21 26     2.683    2.314   58.0   21.4   290   12.3 
2022-10-16 00:00 UT   09 46 36.3   +15 14 36     2.672    2.315   58.6   21.6   290   12.3 
2022-10-17 00:00 UT   09 48 13.4   +15 07 47     2.662    2.315   59.2   21.7   291   12.3 
2022-10-18 00:00 UT   09 49 49.9   +15 00 58     2.652    2.316   59.7   21.8   291   12.3 
2022-10-19 00:00 UT   09 51 25.9   +14 54 10     2.641    2.316   60.3   21.9   291   12.3 
2022-10-20 00:00 UT   09 53 01.4   +14 47 23     2.631    2.317   60.9   22.1   291   12.3 
2022-10-21 00:00 UT   09 54 36.3   +14 40 37     2.620    2.317   61.5   22.2   291   12.3 
2022-10-22 00:00 UT   09 56 10.6   +14 33 52     2.609    2.317   62.1   22.3   291   12.2 
2022-10-23 00:00 UT   09 57 44.4   +14 27 08     2.598    2.318   62.7   22.4   291   12.2 
2022-10-24 00:00 UT   09 59 17.7   +14 20 26     2.588    2.318   63.3   22.5   291   12.2 
2022-10-25 00:00 UT   10 00 50.3   +14 13 45     2.577    2.319   63.9   22.7   291   12.2 
2022-10-26 00:00 UT   10 02 22.4   +14 07 05     2.566    2.319   64.5   22.8   291   12.2 

    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.