(250) Bettina
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	8 Jun 2026	13.1	2.769 AU	3.759 AU	04h20m	+27°47'	10.8°	3.9°
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)                : 0.1369714
            a (Semimajor axis)              : 3.1413264
            i (Inclination)                 : 12.82181
            Ω (Longitude of ascending node) : 23.78706
            ω (Argument of perihelion)      : 75.98060
            M (Mean anomaly)                : 298.60722
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 99.42381
            B (Latitude of perihelion)      : 12.43369
            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
2026-06-08 00:00 UT   04 20 28.8   +27 47 54     3.759    2.769   10.8    3.9   295   13.1 
2026-06-08 13:40 UT   04 21 32.0   +27 51 20     3.758    2.769   11.1    4.0   294   13.1 
2026-06-09 00:00 UT   04 22 19.8   +27 53 55     3.757    2.768   11.3    4.1   294   13.1 
2026-06-10 00:00 UT   04 24 11.0   +27 59 52     3.754    2.768   11.7    4.3   293   13.1 
2026-06-11 00:00 UT   04 26 02.4   +28 05 45     3.751    2.767   12.2    4.5   292   13.2 
2026-06-12 00:00 UT   04 27 53.9   +28 11 34     3.748    2.766   12.7    4.6   291   13.2 
2026-06-13 00:00 UT   04 29 45.6   +28 17 20     3.744    2.765   13.2    4.8   290   13.2 
2026-06-14 00:00 UT   04 31 37.5   +28 23 01     3.741    2.765   13.6    5.0   289   13.2 
2026-06-15 00:00 UT   04 33 29.5   +28 28 39     3.738    2.764   14.1    5.1   288   13.2 
2026-06-16 00:00 UT   04 35 21.6   +28 34 12     3.734    2.763   14.6    5.3   288   13.2 
2026-06-17 00:00 UT   04 37 13.9   +28 39 42     3.730    2.762   15.1    5.5   287   13.2 
2026-06-18 00:00 UT   04 39 06.3   +28 45 07     3.727    2.762   15.6    5.7   286   13.2 
2026-06-19 00:00 UT   04 40 58.8   +28 50 29     3.723    2.761   16.1    5.9   286   13.2 
2026-06-20 00:00 UT   04 42 51.4   +28 55 46     3.719    2.760   16.6    6.0   285   13.2 
2026-06-21 00:00 UT   04 44 44.2   +29 00 60     3.715    2.760   17.1    6.2   285   13.2 
2026-06-22 00:00 UT   04 46 37.1   +29 06 09     3.710    2.759   17.6    6.4   284   13.2 
2026-06-23 00:00 UT   04 48 30.0   +29 11 14     3.706    2.758   18.1    6.6   284   13.2 
2026-06-24 00:00 UT   04 50 23.1   +29 16 16     3.702    2.758   18.6    6.8   284   13.2 
2026-06-25 00:00 UT   04 52 16.3   +29 21 13     3.697    2.757   19.1    6.9   283   13.2 
2026-06-26 00:00 UT   04 54 09.5   +29 26 06     3.692    2.756   19.6    7.1   283   13.2 
2026-06-27 00:00 UT   04 56 02.9   +29 30 55     3.687    2.756   20.1    7.3   283   13.2 
2026-06-28 00:00 UT   04 57 56.3   +29 35 40     3.683    2.755   20.7    7.5   283   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.