(48) Doris
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	9 Aug 2026	12.9	3.317 AU	2.844 AU	16h19m	-13°48'	109.1°	16.8°
Opposition	16 Aug 2027	11.5	3.178 AU	2.170 AU	21h34m	-07°52'	173.8°	2.0°

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 Doris are:

            e (Eccentricity)                : 0.0660520
            a (Semimajor axis)              : 3.1135589
            i (Inclination)                 : 6.55721
            Ω (Longitude of ascending node) : 183.42116
            ω (Argument of perihelion)      : 251.45061
            M (Mean anomaly)                : 177.53892
            Epoch                           : 2026 Jun 09

            L (Longitude of perihelion)     : 254.75806
            B (Latitude of perihelion)      : -6.21518
            P (Orbital period in years)     : 5.49            
        

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
2026-08-09 00:00 UT   16 19 17.2   -13 48 09     2.844    3.317  109.1   16.8   102   12.9 
2026-08-09 06:47 UT   16 19 21.3   -13 48 51     2.848    3.317  108.9   16.8   102   12.9 
2026-08-10 00:00 UT   16 19 32.3   -13 50 41     2.857    3.317  108.2   16.9   102   12.9 
2026-08-11 00:00 UT   16 19 48.6   -13 53 16     2.870    3.317  107.4   17.0   102   12.9 
2026-08-12 00:00 UT   16 20 06.1   -13 55 53     2.884    3.317  106.5   17.0   102   12.9 
2026-08-13 00:00 UT   16 20 24.7   -13 58 33     2.897    3.317  105.6   17.1   102   12.9 
2026-08-14 00:00 UT   16 20 44.4   -14 01 15     2.911    3.317  104.8   17.2   102   12.9 
2026-08-15 00:00 UT   16 21 05.2   -14 03 60     2.924    3.317  103.9   17.2   101   12.9 
2026-08-16 00:00 UT   16 21 27.2   -14 06 46     2.938    3.317  103.0   17.3   101   12.9 
2026-08-17 00:00 UT   16 21 50.2   -14 09 35     2.952    3.317  102.2   17.4   101   13.0 
2026-08-18 00:00 UT   16 22 14.3   -14 12 26     2.965    3.316  101.3   17.4   101   13.0 
2026-08-19 00:00 UT   16 22 39.5   -14 15 18     2.979    3.316  100.5   17.5   101   13.0 
2026-08-20 00:00 UT   16 23 05.8   -14 18 13     2.993    3.316   99.6   17.5   101   13.0 
2026-08-21 00:00 UT   16 23 33.1   -14 21 09     3.007    3.316   98.8   17.5   101   13.0 
2026-08-22 00:00 UT   16 24 01.5   -14 24 06     3.021    3.316   98.0   17.6   100   13.0 
2026-08-23 00:00 UT   16 24 30.9   -14 27 06     3.035    3.316   97.1   17.6   100   13.0 
2026-08-24 00:00 UT   16 25 01.4   -14 30 06     3.048    3.316   96.3   17.6   100   13.0 
2026-08-25 00:00 UT   16 25 32.8   -14 33 09     3.062    3.316   95.5   17.7   100   13.0 
2026-08-26 00:00 UT   16 26 05.2   -14 36 12     3.076    3.316   94.7   17.7   100   13.1 
2026-08-27 00:00 UT   16 26 38.7   -14 39 17     3.090    3.315   93.9   17.7   100   13.1 
2026-08-28 00:00 UT   16 27 13.1   -14 42 22     3.104    3.315   93.1   17.7    99   13.1 
2026-08-29 00:00 UT   16 27 48.4   -14 45 29     3.118    3.315   92.2   17.7    99   13.1 
2026-08-30 00:00 UT   16 28 24.8   -14 48 37     3.132    3.315   91.4   17.7    99   13.1 
2026-08-31 00:00 UT   16 29 02.0   -14 51 45     3.146    3.315   90.6   17.7    99   13.1 
2026-09-01 00:00 UT   16 29 40.2   -14 54 55     3.160    3.315   89.8   17.7    99   13.1 
2026-09-02 00:00 UT   16 30 19.4   -14 58 05     3.174    3.315   89.0   17.7    99   13.1 
2026-09-03 00:00 UT   16 30 59.4   -15 01 16     3.188    3.315   88.2   17.7    99   13.1 
2026-09-04 00:00 UT   16 31 40.4   -15 04 27     3.202    3.314   87.5   17.7    98   13.1 
2026-09-05 00:00 UT   16 32 22.2   -15 07 39     3.216    3.314   86.7   17.7    98   13.2 
2026-09-06 00:00 UT   16 33 05.0   -15 10 52     3.230    3.314   85.9   17.7    98   13.2 
2026-09-07 00:00 UT   16 33 48.6   -15 14 04     3.244    3.314   85.1   17.6    98   13.2 
2026-09-08 00:00 UT   16 34 33.1   -15 17 18     3.258    3.314   84.3   17.6    98   13.2 

    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.