(48) Doris
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	9 Feb 2026	13.3	3.304 AU	3.508 AU	16h36m	-17°14'	70.0°	16.3°
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) : 183.42797
            ω (Argument of perihelion)      : 251.35542
            M (Mean anomaly)                : 141.74525
            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
2026-02-09 00:00 UT   16 36 00.1   -17 14 19     3.508    3.304   70.0   16.3   280   13.3 
2026-02-09 23:57 UT   16 37 01.1   -17 14 37     3.494    3.304   70.8   16.4   280   13.3 
2026-02-10 00:00 UT   16 37 01.3   -17 14 37     3.494    3.304   70.8   16.4   280   13.3 
2026-02-11 00:00 UT   16 38 01.7   -17 14 51     3.481    3.304   71.6   16.5   280   13.3 
2026-02-12 00:00 UT   16 39 01.5   -17 15 01     3.467    3.304   72.3   16.5   279   13.3 
2026-02-13 00:00 UT   16 40 00.7   -17 15 07     3.453    3.304   73.1   16.6   279   13.3 
2026-02-14 00:00 UT   16 40 59.1   -17 15 10     3.439    3.305   73.9   16.7   279   13.3 
2026-02-15 00:00 UT   16 41 56.8   -17 15 09     3.426    3.305   74.7   16.8   279   13.3 
2026-02-16 00:00 UT   16 42 53.8   -17 15 04     3.412    3.305   75.5   16.8   279   13.3 
2026-02-17 00:00 UT   16 43 50.0   -17 14 55     3.398    3.305   76.2   16.9   279   13.3 
2026-02-18 00:00 UT   16 44 45.5   -17 14 43     3.384    3.306   77.0   16.9   279   13.3 
2026-02-19 00:00 UT   16 45 40.3   -17 14 27     3.370    3.306   77.8   17.0   278   13.2 
2026-02-20 00:00 UT   16 46 34.2   -17 14 07     3.356    3.306   78.6   17.0   278   13.2 
2026-02-21 00:00 UT   16 47 27.4   -17 13 44     3.342    3.306   79.4   17.1   278   13.2 
2026-02-22 00:00 UT   16 48 19.8   -17 13 17     3.328    3.306   80.2   17.1   278   13.2 
2026-02-23 00:00 UT   16 49 11.3   -17 12 46     3.314    3.307   81.0   17.2   278   13.2 
2026-02-24 00:00 UT   16 50 02.1   -17 12 12     3.299    3.307   81.8   17.2   278   13.2 
2026-02-25 00:00 UT   16 50 52.0   -17 11 35     3.285    3.307   82.6   17.3   277   13.2 
2026-02-26 00:00 UT   16 51 41.0   -17 10 54     3.271    3.307   83.4   17.3   277   13.2 
2026-02-27 00:00 UT   16 52 29.2   -17 10 10     3.257    3.307   84.2   17.3   277   13.2 
2026-02-28 00:00 UT   16 53 16.6   -17 09 22     3.242    3.308   85.1   17.4   277   13.2 
2026-03-01 00:00 UT   16 54 03.0   -17 08 31     3.228    3.308   85.9   17.4   277   13.2 
2026-03-02 00:00 UT   16 54 48.6   -17 07 36     3.214    3.308   86.7   17.4   277   13.2 
2026-03-03 00:00 UT   16 55 33.3   -17 06 38     3.200    3.308   87.5   17.4   277   13.1 
2026-03-04 00:00 UT   16 56 17.1   -17 05 37     3.185    3.308   88.3   17.4   276   13.1 
2026-03-05 00:00 UT   16 56 59.9   -17 04 33     3.171    3.309   89.2   17.4   276   13.1 
2026-03-06 00:00 UT   16 57 41.8   -17 03 25     3.157    3.309   90.0   17.4   276   13.1 
2026-03-07 00:00 UT   16 58 22.7   -17 02 15     3.142    3.309   90.8   17.4   276   13.1 
2026-03-08 00:00 UT   16 59 02.7   -17 01 01     3.128    3.309   91.7   17.4   276   13.1 
2026-03-09 00:00 UT   16 59 41.7   -16 59 43     3.114    3.309   92.5   17.4   276   13.1 
2026-03-10 00:00 UT   17 00 19.7   -16 58 23     3.099    3.310   93.4   17.4   276   13.1 
2026-03-11 00:00 UT   17 00 56.7   -16 56 60     3.085    3.310   94.2   17.4   275   13.1 

    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.