(91) Aegina
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	19 Jan 2026	11.9	2.352 AU	1.369 AU	08h14m	+23°21'	176.0°	1.7°
Opposition	20 Jan 2026	11.9	2.353 AU	1.370 AU	08h12m	+23°26'	176.6°	1.4°

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 Aegina are:

            e (Eccentricity)                : 0.1081828
            a (Semimajor axis)              : 2.5903334
            i (Inclination)                 : 2.10244
            Ω (Longitude of ascending node) : 10.38720
            ω (Argument of perihelion)      : 74.31130
            M (Mean anomaly)                : 14.38945
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 84.68845
            B (Latitude of perihelion)      : 2.02408
            P (Orbital period in years)     : 4.17            
        

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
2026-01-19 00:00 UT   08 14 09.9   +23 21 54     1.369    2.352  176.0    1.7   223   11.9 
2026-01-19 08:27 UT   08 13 48.1   +23 22 55     1.369    2.352  176.3    1.6   217   11.9 
2026-01-20 00:00 UT   08 13 07.8   +23 24 45     1.369    2.352  176.5    1.5   205   11.9 
2026-01-21 00:00 UT   08 12 05.7   +23 27 32     1.370    2.353  176.6    1.4   184   11.9 
2026-01-22 00:00 UT   08 11 03.5   +23 30 15     1.371    2.354  176.2    1.6   165   11.9 
2026-01-23 00:00 UT   08 10 01.5   +23 32 53     1.372    2.354  175.4    1.9   150   11.9 
2026-01-24 00:00 UT   08 08 59.6   +23 35 27     1.373    2.355  174.5    2.3   140   11.9 
2026-01-25 00:00 UT   08 07 58.1   +23 37 55     1.375    2.356  173.5    2.7   133   12.0 
2026-01-26 00:00 UT   08 06 56.9   +23 40 18     1.377    2.356  172.4    3.2   128   12.0 
2026-01-27 00:00 UT   08 05 56.3   +23 42 36     1.379    2.357  171.3    3.6   124   12.0 
2026-01-28 00:00 UT   08 04 56.2   +23 44 48     1.382    2.358  170.1    4.1   121   12.1 
2026-01-29 00:00 UT   08 03 56.8   +23 46 54     1.384    2.359  168.9    4.6   119   12.1 
2026-01-30 00:00 UT   08 02 58.1   +23 48 55     1.387    2.359  167.7    5.1   117   12.1 
2026-01-31 00:00 UT   08 02 00.2   +23 50 49     1.391    2.360  166.6    5.6   116   12.2 
2026-02-01 00:00 UT   08 01 03.3   +23 52 37     1.394    2.361  165.4    6.1   114   12.2 
2026-02-02 00:00 UT   08 00 07.3   +23 54 19     1.398    2.361  164.2    6.5   113   12.2 
2026-02-03 00:00 UT   07 59 12.4   +23 55 55     1.402    2.362  163.0    7.0   112   12.2 
2026-02-04 00:00 UT   07 58 18.5   +23 57 25     1.406    2.363  161.8    7.5   111   12.3 
2026-02-05 00:00 UT   07 57 25.9   +23 58 48     1.411    2.364  160.6    8.0   110   12.3 
2026-02-06 00:00 UT   07 56 34.5   +24 00 05     1.416    2.364  159.4    8.4   110   12.3 
2026-02-07 00:00 UT   07 55 44.5   +24 01 15     1.421    2.365  158.2    8.9   109   12.4 
2026-02-08 00:00 UT   07 54 55.8   +24 02 19     1.426    2.366  157.0    9.4   109   12.4 
2026-02-09 00:00 UT   07 54 08.5   +24 03 17     1.432    2.367  155.8    9.8   108   12.4 
2026-02-10 00:00 UT   07 53 22.8   +24 04 08     1.438    2.367  154.7   10.3   108   12.4 
2026-02-11 00:00 UT   07 52 38.6   +24 04 53     1.444    2.368  153.5   10.7   107   12.5 
2026-02-12 00:00 UT   07 51 56.0   +24 05 31     1.450    2.369  152.3   11.2   107   12.5 
2026-02-13 00:00 UT   07 51 15.1   +24 06 03     1.456    2.370  151.2   11.6   106   12.5 
2026-02-14 00:00 UT   07 50 35.9   +24 06 29     1.463    2.371  150.0   12.0   106   12.5 
2026-02-15 00:00 UT   07 49 58.4   +24 06 49     1.470    2.371  148.9   12.4   106   12.6 
2026-02-16 00:00 UT   07 49 22.7   +24 07 02     1.477    2.372  147.7   12.8   105   12.6 
2026-02-17 00:00 UT   07 48 48.8   +24 07 09     1.485    2.373  146.6   13.2   105   12.6 
2026-02-18 00:00 UT   07 48 16.8   +24 07 11     1.492    2.374  145.5   13.6   105   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.