(26) Proserpina
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	17 Sep 2025	12.9	2.656 AU	3.576 AU	10h26m	+12°30'	20.3°	7.5°
Opposition	4 Apr 2026	10.5	2.484 AU	1.485 AU	13h01m	-03°13'	176.8°	1.3°

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 Proserpina are:

            e (Eccentricity)                : 0.0885165
            a (Semimajor axis)              : 2.6564029
            i (Inclination)                 : 3.55458
            Ω (Longitude of ascending node) : 45.70462
            ω (Argument of perihelion)      : 195.72875
            M (Mean anomaly)                : 244.35056
            Epoch                           : 2025 May 05

            L (Longitude of perihelion)     : 61.40460
            B (Latitude of perihelion)      : -0.96302
            P (Orbital period in years)     : 4.33            
        

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
2025-09-17 00:00 UT   10 26 58.1   +12 30 06     3.576    2.656   20.3    7.5   298   12.9 
2025-09-17 10:37 UT   10 27 41.1   +12 26 00     3.574    2.656   20.5    7.6   298   12.9 
2025-09-18 00:00 UT   10 28 35.3   +12 20 50     3.570    2.655   20.8    7.7   298   12.9 
2025-09-19 00:00 UT   10 30 12.4   +12 11 33     3.565    2.654   21.4    7.9   298   12.9 
2025-09-20 00:00 UT   10 31 49.4   +12 02 15     3.559    2.654   21.9    8.1   298   12.9 
2025-09-21 00:00 UT   10 33 26.3   +11 52 55     3.552    2.653   22.5    8.3   298   12.9 
2025-09-22 00:00 UT   10 35 03.0   +11 43 34     3.546    2.652   23.0    8.5   298   12.9 
2025-09-23 00:00 UT   10 36 39.5   +11 34 13     3.540    2.651   23.6    8.7   298   12.9 
2025-09-24 00:00 UT   10 38 15.9   +11 24 50     3.533    2.650   24.1    8.9   298   12.9 
2025-09-25 00:00 UT   10 39 52.1   +11 15 26     3.527    2.649   24.7    9.1   298   12.9 
2025-09-26 00:00 UT   10 41 28.2   +11 06 02     3.520    2.648   25.2    9.3   298   12.9 
2025-09-27 00:00 UT   10 43 04.1   +10 56 37     3.513    2.647   25.8    9.5   297   12.9 
2025-09-28 00:00 UT   10 44 39.9   +10 47 11     3.506    2.646   26.4    9.7   297   13.0 
2025-09-29 00:00 UT   10 46 15.5   +10 37 44     3.499    2.645   26.9    9.9   297   13.0 
2025-09-30 00:00 UT   10 47 50.9   +10 28 16     3.492    2.644   27.5   10.1   297   13.0 
2025-10-01 00:00 UT   10 49 26.2   +10 18 48     3.485    2.643   28.0   10.3   297   13.0 
2025-10-02 00:00 UT   10 51 01.3   +10 09 20     3.478    2.642   28.6   10.4   297   13.0 
2025-10-03 00:00 UT   10 52 36.3   +09 59 51     3.470    2.641   29.1   10.6   297   13.0 
2025-10-04 00:00 UT   10 54 11.0   +09 50 21     3.462    2.640   29.7   10.8   297   13.0 
2025-10-05 00:00 UT   10 55 45.6   +09 40 51     3.455    2.640   30.3   11.0   297   13.0 
2025-10-06 00:00 UT   10 57 20.1   +09 31 21     3.447    2.639   30.8   11.2   297   13.0 
2025-10-07 00:00 UT   10 58 54.3   +09 21 51     3.439    2.638   31.4   11.4   297   13.0 

    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.