(887) Alinda
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	7 Dec 2025	19.6	3.075 AU	4.044 AU	16h24m	-16°25'	9.2°	2.9°

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 Alinda are:

            e (Eccentricity)                : 0.5711700
            a (Semimajor axis)              : 2.4736288
            i (Inclination)                 : 9.40006
            Ω (Longitude of ascending node) : 110.40588
            ω (Argument of perihelion)      : 350.53450
            M (Mean anomaly)                : 81.54059
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 101.06523
            B (Latitude of perihelion)      : -1.53913
            P (Orbital period in years)     : 3.89            
        

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
2025-12-07 00:00 UT   16 24 41.9   -16 25 32     4.044    3.075    9.2    2.9   313   19.6 
2025-12-07 10:58 UT   16 25 20.5   -16 27 15     4.045    3.077    9.5    3.0   312   19.6 
2025-12-08 00:00 UT   16 26 06.4   -16 29 15     4.046    3.080    9.8    3.1   311   19.6 
2025-12-09 00:00 UT   16 27 30.7   -16 32 54     4.048    3.084   10.3    3.3   308   19.6 
2025-12-10 00:00 UT   16 28 54.8   -16 36 28     4.050    3.089   10.9    3.5   306   19.6 
2025-12-11 00:00 UT   16 30 18.7   -16 39 59     4.052    3.093   11.5    3.6   305   19.7 
2025-12-12 00:00 UT   16 31 42.5   -16 43 26     4.053    3.098   12.1    3.8   303   19.7 
2025-12-13 00:00 UT   16 33 06.1   -16 46 49     4.055    3.102   12.8    4.0   302   19.7 
2025-12-14 00:00 UT   16 34 29.4   -16 50 08     4.056    3.107   13.4    4.2   300   19.7 
2025-12-15 00:00 UT   16 35 52.6   -16 53 23     4.057    3.111   14.0    4.4   299   19.7 
2025-12-16 00:00 UT   16 37 15.6   -16 56 34     4.058    3.116   14.6    4.6   298   19.7 
2025-12-17 00:00 UT   16 38 38.3   -16 59 41     4.059    3.120   15.3    4.8   297   19.7 
2025-12-18 00:00 UT   16 40 00.8   -17 02 44     4.059    3.124   15.9    5.0   296   19.8 
2025-12-19 00:00 UT   16 41 23.1   -17 05 43     4.059    3.129   16.6    5.1   295   19.8 
2025-12-20 00:00 UT   16 42 45.2   -17 08 38     4.059    3.133   17.2    5.3   294   19.8 
2025-12-21 00:00 UT   16 44 07.0   -17 11 29     4.059    3.138   17.9    5.5   293   19.8 
2025-12-22 00:00 UT   16 45 28.6   -17 14 17     4.059    3.142   18.5    5.7   293   19.8 
2025-12-23 00:00 UT   16 46 49.9   -17 17 00     4.058    3.146   19.2    5.9   292   19.8 
2025-12-24 00:00 UT   16 48 11.0   -17 19 40     4.058    3.151   19.9    6.1   291   19.8 
2025-12-25 00:00 UT   16 49 31.7   -17 22 16     4.057    3.155   20.5    6.3   291   19.8 
2025-12-26 00:00 UT   16 50 52.2   -17 24 48     4.056    3.159   21.2    6.5   290   19.9 
2025-12-27 00:00 UT   16 52 12.5   -17 27 16     4.055    3.163   21.9    6.7   289   19.9 
2025-12-28 00:00 UT   16 53 32.4   -17 29 40     4.053    3.168   22.6    6.8   289   19.9 
2025-12-29 00:00 UT   16 54 52.1   -17 32 01     4.052    3.172   23.2    7.0   288   19.9 
2025-12-30 00:00 UT   16 56 11.4   -17 34 18     4.050    3.176   23.9    7.2   288   19.9 
2025-12-31 00:00 UT   16 57 30.4   -17 36 31     4.048    3.180   24.6    7.4   287   19.9 
2026-01-01 00:00 UT   16 58 49.2   -17 38 41     4.046    3.185   25.3    7.6   287   19.9 

    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.