(48) Doris
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	31 May 2026	11.8	3.319 AU	2.314 AU	16h46m	-13°34'	170.8°	2.8°
Opposition	1 Jun 2026	11.8	3.319 AU	2.313 AU	16h45m	-13°31'	171.2°	2.7°

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)                : 0.0662636
            a (Semimajor axis)              : 3.1128708
            i (Inclination)                 : 6.55777
            Ω (Longitude of ascending node) : 183.42798
            ω (Argument of perihelion)      : 251.35541
            M (Mean anomaly)                : 141.74526
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 254.66916
            B (Latitude of perihelion)      : -6.21222
            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
2026-05-31 00:00 UT   16 46 49.4   -13 34 47     2.314    3.319  170.8    2.8   205   11.8 
2026-05-31 01:50 UT   16 46 45.8   -13 34 37     2.314    3.319  170.9    2.8   205   11.8 
2026-06-01 00:00 UT   16 46 02.3   -13 32 34     2.313    3.319  171.1    2.7   198   11.8 
2026-06-02 00:00 UT   16 45 15.2   -13 30 25     2.313    3.319  171.2    2.7   191   11.8 
2026-06-03 00:00 UT   16 44 28.0   -13 28 18     2.313    3.319  171.2    2.7   183   11.8 
2026-06-04 00:00 UT   16 43 40.8   -13 26 15     2.313    3.319  171.1    2.7   176   11.8 
2026-06-05 00:00 UT   16 42 53.6   -13 24 15     2.314    3.319  170.7    2.8   169   11.8 
2026-06-06 00:00 UT   16 42 06.6   -13 22 18     2.314    3.319  170.3    2.9   162   11.8 
2026-06-07 00:00 UT   16 41 19.6   -13 20 25     2.315    3.319  169.8    3.1   157   11.8 
2026-06-08 00:00 UT   16 40 32.9   -13 18 36     2.317    3.319  169.1    3.3   151   11.9 
2026-06-09 00:00 UT   16 39 46.3   -13 16 50     2.318    3.319  168.4    3.5   147   11.9 
2026-06-10 00:00 UT   16 38 60.0   -13 15 08     2.320    3.319  167.6    3.8   143   11.9 
2026-06-11 00:00 UT   16 38 14.0   -13 13 30     2.322    3.319  166.8    4.0   139   11.9 
2026-06-12 00:00 UT   16 37 28.4   -13 11 56     2.325    3.319  165.9    4.3   136   11.9 
2026-06-13 00:00 UT   16 36 43.1   -13 10 26     2.328    3.319  165.0    4.5   134   11.9 
2026-06-14 00:00 UT   16 35 58.3   -13 09 00     2.331    3.319  164.1    4.8   131   12.0 
2026-06-15 00:00 UT   16 35 13.9   -13 07 39     2.334    3.319  163.1    5.1   129   12.0 
2026-06-16 00:00 UT   16 34 30.1   -13 06 21     2.337    3.319  162.2    5.4   127   12.0 
2026-06-17 00:00 UT   16 33 46.8   -13 05 08     2.341    3.319  161.2    5.7   125   12.0 
2026-06-18 00:00 UT   16 33 04.1   -13 03 60     2.345    3.319  160.2    6.0   124   12.0 
2026-06-19 00:00 UT   16 32 22.1   -13 02 56     2.350    3.319  159.2    6.2   123   12.0 
2026-06-20 00:00 UT   16 31 40.7   -13 01 56     2.354    3.319  158.2    6.5   121   12.1 
2026-06-21 00:00 UT   16 31 00.1   -13 01 02     2.359    3.319  157.1    6.8   120   12.1 
2026-06-22 00:00 UT   16 30 20.2   -13 00 11     2.364    3.319  156.1    7.1   119   12.1 
2026-06-23 00:00 UT   16 29 41.1   -12 59 25     2.370    3.319  155.1    7.4   118   12.1 
2026-06-24 00:00 UT   16 29 02.8   -12 58 44     2.375    3.319  154.0    7.7   117   12.1 
2026-06-25 00:00 UT   16 28 25.3   -12 58 08     2.381    3.319  153.0    8.0   116   12.2 
2026-06-26 00:00 UT   16 27 48.7   -12 57 36     2.387    3.319  152.0    8.3   116   12.2 
2026-06-27 00:00 UT   16 27 12.9   -12 57 09     2.394    3.319  150.9    8.6   115   12.2 
2026-06-28 00:00 UT   16 26 38.1   -12 56 47     2.400    3.319  149.9    8.8   114   12.2 
2026-06-29 00:00 UT   16 26 04.3   -12 56 30     2.407    3.319  148.8    9.1   114   12.2 
2026-06-30 00:00 UT   16 25 31.4   -12 56 17     2.414    3.319  147.8    9.4   113   12.2 

    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.