(250) Bettina
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	6 Oct 2026	13.1	2.713 AU	2.733 AU	07h55m	+32°56'	78.3°	21.2°
Opposition	18 Jan 2027	11.6	2.727 AU	1.781 AU	08h20m	+39°55'	160.2°	7.0°

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 Bettina are:

            e (Eccentricity)                : 0.1370845
            a (Semimajor axis)              : 3.1414623
            i (Inclination)                 : 12.82164
            Ω (Longitude of ascending node) : 23.78625
            ω (Argument of perihelion)      : 76.00796
            M (Mean anomaly)                : 333.99820
            Epoch                           : 2026 Jun 09

            L (Longitude of perihelion)     : 99.45098
            B (Latitude of perihelion)      : 12.43503
            P (Orbital period in years)     : 5.57            
        

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
2026-10-06 00:00 UT   07 55 02.9   +32 56 23     2.733    2.713   78.3   21.2   284   13.1 
2026-10-06 17:30 UT   07 56 04.6   +32 57 06     2.724    2.713   78.8   21.2   284   13.1 
2026-10-07 00:00 UT   07 56 27.4   +32 57 22     2.721    2.713   79.0   21.2   284   13.1 
2026-10-08 00:00 UT   07 57 51.1   +32 58 23     2.708    2.713   79.6   21.2   284   13.0 
2026-10-09 00:00 UT   07 59 13.9   +32 59 26     2.695    2.713   80.3   21.3   284   13.0 
2026-10-10 00:00 UT   08 00 36.0   +33 00 31     2.683    2.712   81.0   21.3   284   13.0 
2026-10-11 00:00 UT   08 01 57.2   +33 01 39     2.670    2.712   81.7   21.4   284   13.0 
2026-10-12 00:00 UT   08 03 17.5   +33 02 49     2.657    2.712   82.4   21.4   284   13.0 
2026-10-13 00:00 UT   08 04 36.9   +33 04 02     2.644    2.712   83.1   21.4   284   13.0 
2026-10-14 00:00 UT   08 05 55.4   +33 05 18     2.631    2.712   83.8   21.5   284   13.0 
2026-10-15 00:00 UT   08 07 13.0   +33 06 37     2.619    2.712   84.5   21.5   284   13.0 
2026-10-16 00:00 UT   08 08 29.7   +33 07 59     2.606    2.712   85.2   21.5   284   13.0 
2026-10-17 00:00 UT   08 09 45.5   +33 09 24     2.593    2.712   86.0   21.5   284   13.0 
2026-10-18 00:00 UT   08 11 00.3   +33 10 52     2.580    2.712   86.7   21.5   284   13.0 
2026-10-19 00:00 UT   08 12 14.1   +33 12 24     2.567    2.711   87.4   21.5   283   12.9 
2026-10-20 00:00 UT   08 13 26.9   +33 13 59     2.555    2.711   88.1   21.5   283   12.9 
2026-10-21 00:00 UT   08 14 38.7   +33 15 38     2.542    2.711   88.9   21.5   283   12.9 
2026-10-22 00:00 UT   08 15 49.5   +33 17 21     2.529    2.711   89.6   21.5   283   12.9 
2026-10-23 00:00 UT   08 16 59.3   +33 19 07     2.516    2.711   90.3   21.5   283   12.9 
2026-10-24 00:00 UT   08 18 08.1   +33 20 58     2.503    2.711   91.1   21.5   283   12.9 
2026-10-25 00:00 UT   08 19 15.7   +33 22 52     2.491    2.711   91.8   21.5   283   12.9 
2026-10-26 00:00 UT   08 20 22.3   +33 24 51     2.478    2.711   92.6   21.5   283   12.9 
2026-10-27 00:00 UT   08 21 27.8   +33 26 54     2.465    2.711   93.3   21.5   283   12.9 
2026-10-28 00:00 UT   08 22 32.1   +33 29 02     2.452    2.711   94.1   21.4   283   12.8 
2026-10-29 00:00 UT   08 23 35.3   +33 31 14     2.440    2.711   94.8   21.4   283   12.8 
2026-10-30 00:00 UT   08 24 37.4   +33 33 30     2.427    2.711   95.6   21.4   283   12.8 
2026-10-31 00:00 UT   08 25 38.3   +33 35 52     2.414    2.711   96.4   21.3   282   12.8 
2026-11-01 00:00 UT   08 26 38.0   +33 38 19     2.402    2.711   97.2   21.3   282   12.8 
2026-11-02 00:00 UT   08 27 36.4   +33 40 50     2.389    2.711   97.9   21.3   282   12.8 
2026-11-03 00:00 UT   08 28 33.6   +33 43 27     2.377    2.711   98.7   21.2   282   12.8 
2026-11-04 00:00 UT   08 29 29.6   +33 46 09     2.364    2.711   99.5   21.2   282   12.7 
2026-11-05 00:00 UT   08 30 24.2   +33 48 56     2.352    2.711  100.3   21.1   282   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.