(118) Peitho
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Opposition	14 Sep 2026	11.9	2.369 AU	1.374 AU	23h47m	-13°28'	168.8°	4.7°
Today	17 Oct 2026	12.4	2.310 AU	1.449 AU	23h19m	-14°14'	140.9°	15.8°

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 Peitho are:

            e (Eccentricity)                : 0.1633440
            a (Semimajor axis)              : 2.4377478
            i (Inclination)                 : 7.74630
            Ω (Longitude of ascending node) : 47.62668
            ω (Argument of perihelion)      : 33.13910
            M (Mean anomaly)                : 263.94901
            Epoch                           : 2026 Jun 09

            L (Longitude of perihelion)     : 80.52579
            B (Latitude of perihelion)      : 4.22564
            P (Orbital period in years)     : 3.81            
        

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
2026-10-17 00:00 UT   23 19 27.9   -14 14 07     1.449    2.310  140.9   15.8    55   12.4 
2026-10-17 23:40 UT   23 18 55.3   -14 11 56     1.455    2.308  139.9   16.2    56   12.4 
2026-10-18 00:00 UT   23 18 54.8   -14 11 54     1.455    2.308  139.9   16.2    56   12.4 
2026-10-19 00:00 UT   23 18 23.4   -14 09 28     1.461    2.306  138.8   16.5    56   12.4 
2026-10-20 00:00 UT   23 17 53.7   -14 06 48     1.468    2.304  137.8   16.9    57   12.5 
2026-10-21 00:00 UT   23 17 25.8   -14 03 55     1.474    2.303  136.7   17.2    57   12.5 
2026-10-22 00:00 UT   23 16 59.7   -14 00 50     1.481    2.301  135.7   17.6    58   12.5 
2026-10-23 00:00 UT   23 16 35.4   -13 57 32     1.488    2.299  134.7   17.9    58   12.5 
2026-10-24 00:00 UT   23 16 12.9   -13 54 01     1.495    2.297  133.7   18.3    59   12.5 
2026-10-25 00:00 UT   23 15 52.2   -13 50 19     1.502    2.295  132.6   18.6    59   12.6 
2026-10-26 00:00 UT   23 15 33.4   -13 46 24     1.509    2.294  131.6   18.9    59   12.6 
2026-10-27 00:00 UT   23 15 16.3   -13 42 17     1.517    2.292  130.6   19.2    60   12.6 
2026-10-28 00:00 UT   23 15 01.2   -13 37 59     1.525    2.290  129.6   19.5    60   12.6 
2026-10-29 00:00 UT   23 14 47.8   -13 33 29     1.532    2.288  128.6   19.8    60   12.6 
2026-10-30 00:00 UT   23 14 36.3   -13 28 47     1.540    2.287  127.7   20.1    61   12.6 
2026-10-31 00:00 UT   23 14 26.7   -13 23 54     1.548    2.285  126.7   20.4    61   12.7 
2026-11-01 00:00 UT   23 14 18.9   -13 18 51     1.557    2.283  125.7   20.7    61   12.7 
2026-11-02 00:00 UT   23 14 13.0   -13 13 36     1.565    2.281  124.7   20.9    61   12.7 
2026-11-03 00:00 UT   23 14 08.9   -13 08 10     1.573    2.279  123.8   21.2    62   12.7 
2026-11-04 00:00 UT   23 14 06.6   -13 02 34     1.582    2.278  122.8   21.5    62   12.7 
2026-11-05 00:00 UT   23 14 06.2   -12 56 48     1.591    2.276  121.9   21.7    62   12.8 
2026-11-06 00:00 UT   23 14 07.6   -12 50 51     1.600    2.274  120.9   22.0    62   12.8 
2026-11-07 00:00 UT   23 14 10.8   -12 44 43     1.608    2.272  120.0   22.2    63   12.8 
2026-11-08 00:00 UT   23 14 15.9   -12 38 26     1.617    2.271  119.1   22.4    63   12.8 
2026-11-09 00:00 UT   23 14 22.8   -12 31 59     1.627    2.269  118.2   22.6    63   12.8 
2026-11-10 00:00 UT   23 14 31.5   -12 25 23     1.636    2.267  117.2   22.9    63   12.8 
2026-11-11 00:00 UT   23 14 41.9   -12 18 36     1.645    2.265  116.3   23.1    63   12.9 
2026-11-12 00:00 UT   23 14 54.1   -12 11 41     1.654    2.264  115.4   23.3    64   12.9 
2026-11-13 00:00 UT   23 15 08.1   -12 04 36     1.664    2.262  114.5   23.5    64   12.9 
2026-11-14 00:00 UT   23 15 23.8   -11 57 22     1.674    2.260  113.6   23.6    64   12.9 
2026-11-15 00:00 UT   23 15 41.3   -11 49 60     1.683    2.258  112.8   23.8    64   12.9 
2026-11-16 00:00 UT   23 16 00.4   -11 42 29     1.693    2.257  111.9   24.0    64   12.9 

    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.