(118) Peitho
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	11 Jul 2026	13.4	2.487 AU	1.936 AU	00h05m	-09°50'	110.8°	22.5°
Opposition	14 Sep 2026	11.9	2.369 AU	1.374 AU	23h47m	-13°28'	168.8°	4.7°

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 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
2026-07-11 00:00 UT   00 05 10.5   -09 50 33     1.936    2.487  110.8   22.5   250   13.4 
2026-07-11 15:56 UT   00 05 32.3   -09 50 11     1.928    2.485  111.4   22.4   250   13.4 
2026-07-12 00:00 UT   00 05 43.1   -09 50 02     1.923    2.485  111.6   22.4   250   13.4 
2026-07-13 00:00 UT   00 06 14.4   -09 49 40     1.910    2.483  112.5   22.2   250   13.4 
2026-07-14 00:00 UT   00 06 44.5   -09 49 26     1.897    2.481  113.3   22.1   250   13.3 
2026-07-15 00:00 UT   00 07 13.2   -09 49 22     1.884    2.480  114.1   22.0   251   13.3 
2026-07-16 00:00 UT   00 07 40.7   -09 49 26     1.872    2.478  114.9   21.8   251   13.3 
2026-07-17 00:00 UT   00 08 06.7   -09 49 39     1.859    2.476  115.8   21.7   251   13.3 
2026-07-18 00:00 UT   00 08 31.5   -09 50 00     1.846    2.474  116.6   21.5   251   13.3 
2026-07-19 00:00 UT   00 08 54.8   -09 50 31     1.834    2.473  117.5   21.4   251   13.2 
2026-07-20 00:00 UT   00 09 16.7   -09 51 10     1.821    2.471  118.3   21.2   252   13.2 
2026-07-21 00:00 UT   00 09 37.2   -09 51 58     1.809    2.469  119.2   21.1   252   13.2 
2026-07-22 00:00 UT   00 09 56.3   -09 52 55     1.797    2.467  120.0   20.9   252   13.2 
2026-07-23 00:00 UT   00 10 14.0   -09 54 01     1.784    2.465  120.9   20.7   252   13.1 
2026-07-24 00:00 UT   00 10 30.1   -09 55 16     1.772    2.464  121.8   20.5   253   13.1 
2026-07-25 00:00 UT   00 10 44.8   -09 56 39     1.760    2.462  122.7   20.3   253   13.1 
2026-07-26 00:00 UT   00 10 58.0   -09 58 11     1.749    2.460  123.6   20.1   253   13.1 
2026-07-27 00:00 UT   00 11 09.7   -09 59 53     1.737    2.458  124.5   19.9   253   13.1 
2026-07-28 00:00 UT   00 11 19.8   -10 01 43     1.725    2.457  125.4   19.7   254   13.0 
2026-07-29 00:00 UT   00 11 28.4   -10 03 41     1.714    2.455  126.3   19.5   254   13.0 
2026-07-30 00:00 UT   00 11 35.4   -10 05 49     1.702    2.453  127.2   19.3   254   13.0 
2026-07-31 00:00 UT   00 11 40.8   -10 08 05     1.691    2.451  128.1   19.0   254   13.0 
2026-08-01 00:00 UT   00 11 44.7   -10 10 30     1.680    2.449  129.0   18.8   255   12.9 
2026-08-02 00:00 UT   00 11 46.9   -10 13 04     1.669    2.448  130.0   18.5   255   12.9 
2026-08-03 00:00 UT   00 11 47.5   -10 15 46     1.658    2.446  130.9   18.3   255   12.9 
2026-08-04 00:00 UT   00 11 46.4   -10 18 36     1.647    2.444  131.8   18.0   256   12.9 
2026-08-05 00:00 UT   00 11 43.7   -10 21 35     1.637    2.442  132.8   17.7   256   12.8 
2026-08-06 00:00 UT   00 11 39.3   -10 24 43     1.627    2.440  133.7   17.5   257   12.8 
2026-08-07 00:00 UT   00 11 33.2   -10 27 58     1.616    2.439  134.7   17.2   257   12.8 
2026-08-08 00:00 UT   00 11 25.4   -10 31 22     1.606    2.437  135.7   16.9   257   12.8 
2026-08-09 00:00 UT   00 11 15.9   -10 34 54     1.596    2.435  136.6   16.6   258   12.7 
2026-08-10 00:00 UT   00 11 04.6   -10 38 33     1.586    2.433  137.6   16.3   258   12.7 

    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.