(335) Roberta
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	12 Nov 2026	14.7	2.805 AU	3.022 AU	10h50m	+06°52'	68.0°	19.1°
Opposition	6 Mar 2027	12.4	2.652 AU	1.661 AU	11h10m	+07°53'	177.6°	0.9°

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 Roberta are:

            e (Eccentricity)                : 0.1709091
            a (Semimajor axis)              : 2.4779969
            i (Inclination)                 : 5.10518
            Ω (Longitude of ascending node) : 148.35687
            ω (Argument of perihelion)      : 140.15574
            M (Mean anomaly)                : 186.31859
            Epoch                           : 2026 Jun 09

            L (Longitude of perihelion)     : 108.62460
            B (Latitude of perihelion)      : 3.26835
            P (Orbital period in years)     : 3.90            
        

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
2026-11-12 00:00 UT   10 50 03.7   +06 52 06     3.022    2.805   68.0   19.1   292   14.7 
2026-11-12 01:47 UT   10 50 08.7   +06 51 39     3.021    2.805   68.0   19.1   292   14.7 
2026-11-13 00:00 UT   10 51 10.8   +06 46 09     3.007    2.804   68.7   19.2   292   14.7 
2026-11-14 00:00 UT   10 52 17.4   +06 40 16     2.993    2.803   69.4   19.3   292   14.7 
2026-11-15 00:00 UT   10 53 23.4   +06 34 26     2.979    2.802   70.1   19.4   292   14.7 
2026-11-16 00:00 UT   10 54 28.8   +06 28 39     2.965    2.801   70.8   19.5   292   14.7 
2026-11-17 00:00 UT   10 55 33.7   +06 22 55     2.950    2.799   71.6   19.6   292   14.7 
2026-11-18 00:00 UT   10 56 38.0   +06 17 15     2.936    2.798   72.3   19.7   292   14.6 
2026-11-19 00:00 UT   10 57 41.7   +06 11 39     2.921    2.797   73.0   19.8   292   14.6 
2026-11-20 00:00 UT   10 58 44.8   +06 06 06     2.907    2.796   73.8   19.8   292   14.6 
2026-11-21 00:00 UT   10 59 47.2   +06 00 36     2.892    2.795   74.5   19.9   292   14.6 
2026-11-22 00:00 UT   11 00 49.1   +05 55 11     2.878    2.794   75.2   20.0   293   14.6 
2026-11-23 00:00 UT   11 01 50.3   +05 49 50     2.863    2.793   76.0   20.1   293   14.6 
2026-11-24 00:00 UT   11 02 50.9   +05 44 32     2.848    2.792   76.7   20.1   293   14.6 
2026-11-25 00:00 UT   11 03 50.8   +05 39 19     2.833    2.791   77.5   20.2   293   14.6 
2026-11-26 00:00 UT   11 04 50.0   +05 34 10     2.819    2.790   78.2   20.3   293   14.6 
2026-11-27 00:00 UT   11 05 48.6   +05 29 06     2.804    2.788   79.0   20.3   293   14.6 
2026-11-28 00:00 UT   11 06 46.5   +05 24 05     2.789    2.787   79.7   20.4   293   14.5 
2026-11-29 00:00 UT   11 07 43.7   +05 19 10     2.774    2.786   80.5   20.4   293   14.5 
2026-11-30 00:00 UT   11 08 40.2   +05 14 19     2.759    2.785   81.2   20.5   293   14.5 
2026-12-01 00:00 UT   11 09 36.0   +05 09 33     2.744    2.784   82.0   20.5   293   14.5 
2026-12-02 00:00 UT   11 10 31.0   +05 04 52     2.729    2.783   82.8   20.6   293   14.5 
2026-12-03 00:00 UT   11 11 25.3   +05 00 16     2.714    2.782   83.6   20.6   293   14.5 
2026-12-04 00:00 UT   11 12 18.7   +04 55 45     2.699    2.780   84.3   20.7   293   14.5 
2026-12-05 00:00 UT   11 13 11.5   +04 51 20     2.684    2.779   85.1   20.7   293   14.5 
2026-12-06 00:00 UT   11 14 03.4   +04 47 00     2.668    2.778   85.9   20.7   293   14.5 
2026-12-07 00:00 UT   11 14 54.5   +04 42 46     2.653    2.777   86.7   20.7   293   14.4 
2026-12-08 00:00 UT   11 15 44.7   +04 38 38     2.638    2.776   87.5   20.8   293   14.4 
2026-12-09 00:00 UT   11 16 34.1   +04 34 35     2.623    2.774   88.3   20.8   293   14.4 
2026-12-10 00:00 UT   11 17 22.7   +04 30 39     2.608    2.773   89.1   20.8   293   14.4 
2026-12-11 00:00 UT   11 18 10.4   +04 26 48     2.593    2.772   89.9   20.8   293   14.4 
2026-12-12 00:00 UT   11 18 57.2   +04 23 04     2.577    2.771   90.7   20.8   293   14.4 

    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.