(59) Elpis
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	15 Dec 2025	13.2	2.439 AU	2.709 AU	21h54m	-12°22'	63.7°	21.2°
Opposition	20 Dec 2026	11.6	2.561 AU	1.595 AU	05h53m	+09°36'	166.2°	5.3°

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 Elpis are:

            e (Eccentricity)                : 0.1166274
            a (Semimajor axis)              : 2.7136575
            i (Inclination)                 : 8.64828
            Ω (Longitude of ascending node) : 169.90896
            ω (Argument of perihelion)      : 211.14204
            M (Mean anomaly)                : 328.28847
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 200.76177
            B (Latitude of perihelion)      : -4.46010
            P (Orbital period in years)     : 4.47            
        

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
2025-12-15 00:00 UT   21 54 58.6   -12 22 28     2.709    2.439   63.7   21.2    70   13.2 
2025-12-15 07:46 UT   21 55 28.4   -12 20 37     2.713    2.439   63.5   21.2    70   13.2 
2025-12-16 00:00 UT   21 56 31.0   -12 16 42     2.720    2.438   63.1   21.1    70   13.2 
2025-12-17 00:00 UT   21 58 03.8   -12 10 50     2.731    2.438   62.5   21.0    70   13.2 
2025-12-18 00:00 UT   21 59 37.1   -12 04 52     2.742    2.437   61.8   20.9    70   13.2 
2025-12-19 00:00 UT   22 01 10.8   -11 58 49     2.752    2.436   61.2   20.7    70   13.2 
2025-12-20 00:00 UT   22 02 44.9   -11 52 40     2.763    2.436   60.6   20.6    70   13.2 
2025-12-21 00:00 UT   22 04 19.4   -11 46 25     2.773    2.435   60.0   20.5    70   13.2 
2025-12-22 00:00 UT   22 05 54.3   -11 40 04     2.784    2.434   59.3   20.3    70   13.2 
2025-12-23 00:00 UT   22 07 29.5   -11 33 38     2.794    2.434   58.7   20.2    69   13.2 
2025-12-24 00:00 UT   22 09 05.2   -11 27 07     2.805    2.433   58.1   20.1    69   13.3 
2025-12-25 00:00 UT   22 10 41.2   -11 20 31     2.815    2.432   57.5   19.9    69   13.3 
2025-12-26 00:00 UT   22 12 17.5   -11 13 49     2.825    2.432   56.9   19.8    69   13.3 
2025-12-27 00:00 UT   22 13 54.2   -11 07 02     2.835    2.431   56.3   19.7    69   13.3 
2025-12-28 00:00 UT   22 15 31.2   -11 00 09     2.845    2.431   55.7   19.5    69   13.3 
2025-12-29 00:00 UT   22 17 08.5   -10 53 12     2.855    2.430   55.1   19.4    69   13.3 
2025-12-30 00:00 UT   22 18 46.2   -10 46 10     2.865    2.429   54.5   19.2    69   13.3 
2025-12-31 00:00 UT   22 20 24.1   -10 39 03     2.875    2.429   53.9   19.1    69   13.3 
2026-01-01 00:00 UT   22 22 02.4   -10 31 51     2.885    2.428   53.3   18.9    69   13.3 
2026-01-02 00:00 UT   22 23 40.9   -10 24 34     2.895    2.428   52.7   18.8    69   13.3 
2026-01-03 00:00 UT   22 25 19.7   -10 17 13     2.904    2.427   52.1   18.6    69   13.3 
2026-01-04 00:00 UT   22 26 58.8   -10 09 47     2.914    2.426   51.5   18.5    69   13.3 

    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.