(118) Peitho
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	5 Sep 2026	12.0	2.386 AU	1.402 AU	23h56m	-12°42'	163.5°	6.9°
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
2026-09-05 00:00 UT   23 56 40.3   -12 42 54     1.402    2.386  163.5    6.9   289   12.0 
2026-09-05 21:57 UT   23 55 52.5   -12 47 34     1.398    2.384  164.3    6.6   292   12.0 
2026-09-06 00:00 UT   23 55 48.0   -12 48 01     1.398    2.384  164.4    6.5   292   12.0 
2026-09-07 00:00 UT   23 54 54.8   -12 53 05     1.394    2.382  165.2    6.2   295   12.0 
2026-09-08 00:00 UT   23 54 00.6   -12 58 05     1.390    2.381  166.0    5.9   299   12.0 
2026-09-09 00:00 UT   23 53 05.5   -13 03 02     1.387    2.379  166.7    5.6   303   12.0 
2026-09-10 00:00 UT   23 52 09.5   -13 07 54     1.384    2.377  167.3    5.4   308   11.9 
2026-09-11 00:00 UT   23 51 12.9   -13 12 42     1.381    2.375  167.8    5.1   313   11.9 
2026-09-12 00:00 UT   23 50 15.5   -13 17 24     1.379    2.373  168.3    5.0   319   11.9 
2026-09-13 00:00 UT   23 49 17.5   -13 21 59     1.377    2.371  168.6    4.8   324   11.9 
2026-09-14 00:00 UT   23 48 19.0   -13 26 28     1.375    2.370  168.8    4.7   331   11.9 
2026-09-15 00:00 UT   23 47 20.0   -13 30 50     1.373    2.368  168.9    4.7   337   11.9 
2026-09-16 00:00 UT   23 46 20.7   -13 35 05     1.372    2.366  168.8    4.7   343   11.9 
2026-09-17 00:00 UT   23 45 21.0   -13 39 11     1.370    2.364  168.6    4.8   349   11.9 
2026-09-18 00:00 UT   23 44 21.2   -13 43 09     1.369    2.362  168.3    4.9   355   11.9 
2026-09-19 00:00 UT   23 43 21.2   -13 46 58     1.369    2.361  167.9    5.1     1   11.9 
2026-09-20 00:00 UT   23 42 21.2   -13 50 38     1.368    2.359  167.4    5.3     6   11.9 
2026-09-21 00:00 UT   23 41 21.2   -13 54 08     1.368    2.357  166.8    5.6    11   11.9 
2026-09-22 00:00 UT   23 40 21.2   -13 57 27     1.368    2.355  166.1    5.9    15   11.9 
2026-09-23 00:00 UT   23 39 21.5   -14 00 36     1.369    2.353  165.3    6.2    19   11.9 
2026-09-24 00:00 UT   23 38 22.0   -14 03 35     1.369    2.351  164.5    6.5    23   11.9 
2026-09-25 00:00 UT   23 37 22.9   -14 06 22     1.370    2.350  163.7    6.9    26   12.0 
2026-09-26 00:00 UT   23 36 24.2   -14 08 58     1.371    2.348  162.8    7.3    29   12.0 
2026-09-27 00:00 UT   23 35 26.0   -14 11 22     1.373    2.346  161.8    7.7    32   12.0 
2026-09-28 00:00 UT   23 34 28.3   -14 13 34     1.374    2.344  160.9    8.1    34   12.0 
2026-09-29 00:00 UT   23 33 31.3   -14 15 34     1.376    2.342  159.9    8.5    36   12.0 
2026-09-30 00:00 UT   23 32 34.9   -14 17 22     1.378    2.341  158.9    8.9    38   12.1 
2026-10-01 00:00 UT   23 31 39.4   -14 18 57     1.381    2.339  157.9    9.3    40   12.1 
2026-10-02 00:00 UT   23 30 44.6   -14 20 20     1.383    2.337  156.8    9.7    41   12.1 
2026-10-03 00:00 UT   23 29 50.8   -14 21 29     1.386    2.335  155.8   10.1    43   12.1 
2026-10-04 00:00 UT   23 28 58.0   -14 22 26     1.389    2.333  154.8   10.5    44   12.1 
2026-10-05 00:00 UT   23 28 06.2   -14 23 09     1.392    2.331  153.7   11.0    45   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.