(48) Doris
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	11 Apr 2026	12.7	3.315 AU	2.668 AU	17h10m	-15°52'	122.4°	14.8°
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
2026-04-11 00:00 UT   17 10 40.0   -15 52 21     2.668    3.315  122.4   14.8   270   12.7 
2026-04-11 00:07 UT   17 10 40.0   -15 52 20     2.667    3.315  122.4   14.8   270   12.7 
2026-04-12 00:00 UT   17 10 39.1   -15 49 42     2.656    3.315  123.4   14.6   270   12.6 
2026-04-13 00:00 UT   17 10 36.8   -15 47 02     2.644    3.315  124.4   14.5   270   12.6 
2026-04-14 00:00 UT   17 10 33.2   -15 44 21     2.632    3.315  125.4   14.3   270   12.6 
2026-04-15 00:00 UT   17 10 28.3   -15 41 38     2.620    3.315  126.3   14.1   270   12.6 
2026-04-16 00:00 UT   17 10 22.2   -15 38 53     2.609    3.315  127.3   13.9   269   12.6 
2026-04-17 00:00 UT   17 10 14.7   -15 36 08     2.598    3.315  128.3   13.7   269   12.6 
2026-04-18 00:00 UT   17 10 05.8   -15 33 21     2.587    3.315  129.3   13.5   269   12.5 
2026-04-19 00:00 UT   17 09 55.7   -15 30 33     2.576    3.315  130.3   13.3   269   12.5 
2026-04-20 00:00 UT   17 09 44.3   -15 27 45     2.565    3.316  131.3   13.1   268   12.5 
2026-04-21 00:00 UT   17 09 31.6   -15 24 55     2.555    3.316  132.4   12.9   268   12.5 
2026-04-22 00:00 UT   17 09 17.7   -15 22 04     2.544    3.316  133.4   12.7   268   12.5 
2026-04-23 00:00 UT   17 09 02.4   -15 19 13     2.534    3.316  134.4   12.5   268   12.5 
2026-04-24 00:00 UT   17 08 45.9   -15 16 21     2.524    3.316  135.4   12.3   267   12.4 
2026-04-25 00:00 UT   17 08 28.2   -15 13 28     2.514    3.316  136.4   12.1   267   12.4 
2026-04-26 00:00 UT   17 08 09.2   -15 10 35     2.504    3.316  137.5   11.8   267   12.4 
2026-04-27 00:00 UT   17 07 49.0   -15 07 41     2.495    3.316  138.5   11.6   266   12.4 
2026-04-28 00:00 UT   17 07 27.6   -15 04 47     2.486    3.316  139.5   11.4   266   12.4 
2026-04-29 00:00 UT   17 07 05.0   -15 01 52     2.477    3.317  140.6   11.1   266   12.4 
2026-04-30 00:00 UT   17 06 41.2   -14 58 57     2.468    3.317  141.6   10.9   265   12.3 
2026-05-01 00:00 UT   17 06 16.3   -14 56 02     2.459    3.317  142.7   10.6   265   12.3 
2026-05-02 00:00 UT   17 05 50.2   -14 53 07     2.451    3.317  143.7   10.4   264   12.3 
2026-05-03 00:00 UT   17 05 22.9   -14 50 11     2.442    3.317  144.7   10.1   264   12.3 
2026-05-04 00:00 UT   17 04 54.6   -14 47 16     2.434    3.317  145.8    9.8   264   12.3 
2026-05-05 00:00 UT   17 04 25.1   -14 44 21     2.427    3.317  146.8    9.6   263   12.3 
2026-05-06 00:00 UT   17 03 54.6   -14 41 26     2.419    3.317  147.9    9.3   263   12.2 
2026-05-07 00:00 UT   17 03 23.0   -14 38 32     2.412    3.317  148.9    9.0   262   12.2 
2026-05-08 00:00 UT   17 02 50.4   -14 35 38     2.405    3.317  150.0    8.7   261   12.2 
2026-05-09 00:00 UT   17 02 16.8   -14 32 44     2.398    3.317  151.1    8.5   261   12.2 
2026-05-10 00:00 UT   17 01 42.2   -14 29 51     2.391    3.317  152.1    8.2   260   12.2 
2026-05-11 00:00 UT   17 01 06.6   -14 26 59     2.385    3.318  153.2    7.9   259   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.