(266) Aline
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	13 Dec 2025	12.4	2.566 AU	1.623 AU	06h31m	+10°39'	158.9°	8.0°
Opposition	26 Dec 2025	12.3	2.586 AU	1.619 AU	06h19m	+09°41'	166.3°	5.2°

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 Aline are:

            e (Eccentricity)                : 0.1548464
            a (Semimajor axis)              : 2.8059494
            i (Inclination)                 : 13.39966
            Ω (Longitude of ascending node) : 235.80746
            ω (Argument of perihelion)      : 152.20314
            M (Mean anomaly)                : 44.42525
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 208.65784
            B (Latitude of perihelion)      : 6.20408
            P (Orbital period in years)     : 4.70            
        

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
2025-12-13 00:00 UT   06 31 48.1   +10 39 53     1.623    2.566  158.9    8.0   308   12.4 
2025-12-13 04:41 UT   06 31 37.7   +10 38 53     1.622    2.566  159.0    7.9   309   12.4 
2025-12-14 00:00 UT   06 30 54.4   +10 34 45     1.621    2.567  159.8    7.6   311   12.4 
2025-12-15 00:00 UT   06 29 60.0   +10 29 44     1.619    2.569  160.7    7.3   313   12.3 
2025-12-16 00:00 UT   06 29 04.9   +10 24 50     1.618    2.570  161.5    7.0   316   12.3 
2025-12-17 00:00 UT   06 28 09.1   +10 20 04     1.616    2.572  162.3    6.7   319   12.3 
2025-12-18 00:00 UT   06 27 12.8   +10 15 25     1.616    2.573  163.1    6.4   322   12.3 
2025-12-19 00:00 UT   06 26 16.1   +10 10 53     1.615    2.574  163.8    6.1   326   12.3 
2025-12-20 00:00 UT   06 25 18.9   +10 06 30     1.615    2.576  164.4    5.9   330   12.3 
2025-12-21 00:00 UT   06 24 21.4   +10 02 14     1.615    2.577  165.0    5.7   334   12.3 
2025-12-22 00:00 UT   06 23 23.6   +09 58 07     1.615    2.579  165.4    5.5   338   12.3 
2025-12-23 00:00 UT   06 22 25.7   +09 54 07     1.615    2.580  165.8    5.4   343   12.3 
2025-12-24 00:00 UT   06 21 27.6   +09 50 16     1.616    2.582  166.1    5.3   348   12.3 
2025-12-25 00:00 UT   06 20 29.6   +09 46 33     1.617    2.583  166.3    5.2   353   12.3 
2025-12-26 00:00 UT   06 19 31.6   +09 42 59     1.619    2.585  166.3    5.2   358   12.3 
2025-12-27 00:00 UT   06 18 33.7   +09 39 33     1.620    2.586  166.3    5.2     4   12.3 
2025-12-28 00:00 UT   06 17 36.0   +09 36 16     1.622    2.588  166.1    5.2     9   12.3 
2025-12-29 00:00 UT   06 16 38.6   +09 33 07     1.624    2.589  165.9    5.3    14   12.3 
2025-12-30 00:00 UT   06 15 41.5   +09 30 07     1.627    2.591  165.5    5.4    19   12.3 
2025-12-31 00:00 UT   06 14 44.8   +09 27 16     1.630    2.592  165.1    5.6    23   12.3 
2026-01-01 00:00 UT   06 13 48.6   +09 24 33     1.633    2.594  164.5    5.8    27   12.3 
2026-01-02 00:00 UT   06 12 53.0   +09 21 59     1.636    2.595  163.9    6.0    31   12.3 
2026-01-03 00:00 UT   06 11 58.0   +09 19 33     1.640    2.597  163.2    6.3    35   12.4 
2026-01-04 00:00 UT   06 11 03.6   +09 17 17     1.644    2.598  162.5    6.5    38   12.4 
2026-01-05 00:00 UT   06 10 09.9   +09 15 08     1.648    2.600  161.7    6.8    41   12.4 
2026-01-06 00:00 UT   06 09 17.1   +09 13 09     1.652    2.601  160.9    7.1    44   12.4 
2026-01-07 00:00 UT   06 08 25.1   +09 11 18     1.657    2.603  160.0    7.4    47   12.4 
2026-01-08 00:00 UT   06 07 33.9   +09 09 36     1.662    2.604  159.1    7.7    49   12.5 
2026-01-09 00:00 UT   06 06 43.8   +09 08 02     1.667    2.606  158.2    8.1    51   12.5 
2026-01-10 00:00 UT   06 05 54.6   +09 06 37     1.673    2.607  157.2    8.4    53   12.5 
2026-01-11 00:00 UT   06 05 06.6   +09 05 20     1.678    2.609  156.3    8.7    55   12.5 
2026-01-12 00:00 UT   06 04 19.6   +09 04 12     1.684    2.610  155.3    9.1    57   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.