(134) Sophrosyne
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Opposition	8 Oct 2025	11.9	2.375 AU	1.384 AU	00h42m	+15°26'	170.0°	4.2°
Today	10 Oct 2025	11.9	2.373 AU	1.383 AU	00h40m	+15°24'	169.8°	4.3°

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 Sophrosyne are:

            e (Eccentricity)                : 0.1151201
            a (Semimajor axis)              : 2.5629153
            i (Inclination)                 : 11.61241
            Ω (Longitude of ascending node) : 345.83618
            ω (Argument of perihelion)      : 85.80152
            M (Mean anomaly)                : 325.20987
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 71.55029
            B (Latitude of perihelion)      : 11.58082
            P (Orbital period in years)     : 4.10            
        

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
2025-10-10 00:00 UT   00 40 48.5   +15 24 31     1.383    2.373  169.8    4.3   150   11.9 
2025-10-10 04:43 UT   00 40 36.0   +15 24 16     1.383    2.373  169.8    4.3   149   11.9 
2025-10-11 00:00 UT   00 39 45.0   +15 23 12     1.383    2.372  169.5    4.4   143   11.9 
2025-10-12 00:00 UT   00 38 41.8   +15 21 45     1.383    2.371  169.1    4.6   137   11.9 
2025-10-13 00:00 UT   00 37 39.0   +15 20 11     1.384    2.370  168.6    4.8   131   12.0 
2025-10-14 00:00 UT   00 36 36.6   +15 18 30     1.384    2.369  167.9    5.0   126   12.0 
2025-10-15 00:00 UT   00 35 34.8   +15 16 44     1.385    2.368  167.2    5.3   121   12.0 
2025-10-16 00:00 UT   00 34 33.6   +15 14 52     1.386    2.367  166.4    5.7   117   12.0 
2025-10-17 00:00 UT   00 33 33.1   +15 12 54     1.388    2.366  165.6    6.0   113   12.0 
2025-10-18 00:00 UT   00 32 33.4   +15 10 52     1.389    2.365  164.7    6.4   110   12.0 
2025-10-19 00:00 UT   00 31 34.6   +15 08 45     1.391    2.364  163.8    6.8   107   12.1 
2025-10-20 00:00 UT   00 30 36.7   +15 06 34     1.393    2.363  162.8    7.2   105   12.1 
2025-10-21 00:00 UT   00 29 39.8   +15 04 19     1.396    2.362  161.8    7.6   102   12.1 
2025-10-22 00:00 UT   00 28 44.0   +15 02 02     1.398    2.361  160.8    8.0   100   12.1 
2025-10-23 00:00 UT   00 27 49.4   +14 59 42     1.401    2.360  159.7    8.4    98   12.1 
2025-10-24 00:00 UT   00 26 55.9   +14 57 20     1.404    2.359  158.7    8.8    96   12.2 
2025-10-25 00:00 UT   00 26 03.8   +14 54 56     1.408    2.358  157.6    9.2    95   12.2 
2025-10-26 00:00 UT   00 25 13.1   +14 52 31     1.411    2.357  156.6    9.7    93   12.2 
2025-10-27 00:00 UT   00 24 23.7   +14 50 05     1.415    2.356  155.5   10.1    92   12.2 
2025-10-28 00:00 UT   00 23 35.8   +14 47 39     1.419    2.355  154.4   10.5    91   12.3 
2025-10-29 00:00 UT   00 22 49.4   +14 45 13     1.424    2.354  153.3   10.9    90   12.3 
2025-10-30 00:00 UT   00 22 04.6   +14 42 47     1.428    2.353  152.3   11.3    89   12.3 
2025-10-31 00:00 UT   00 21 21.4   +14 40 23     1.433    2.352  151.2   11.7    88   12.3 
2025-11-01 00:00 UT   00 20 39.8   +14 38 00     1.438    2.351  150.1   12.2    87   12.3 
2025-11-02 00:00 UT   00 19 59.9   +14 35 39     1.444    2.350  149.0   12.6    86   12.4 
2025-11-03 00:00 UT   00 19 21.7   +14 33 20     1.449    2.349  147.9   13.0    85   12.4 
2025-11-04 00:00 UT   00 18 45.2   +14 31 04     1.455    2.349  146.8   13.4    84   12.4 
2025-11-05 00:00 UT   00 18 10.6   +14 28 51     1.461    2.348  145.8   13.7    83   12.4 
2025-11-06 00:00 UT   00 17 37.7   +14 26 41     1.467    2.347  144.7   14.1    83   12.5 
2025-11-07 00:00 UT   00 17 06.6   +14 24 34     1.473    2.346  143.6   14.5    82   12.5 
2025-11-08 00:00 UT   00 16 37.4   +14 22 32     1.480    2.345  142.5   14.9    82   12.5 
2025-11-09 00:00 UT   00 16 10.0   +14 20 34     1.486    2.344  141.5   15.3    81   12.5 

    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.