(48) Doris
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	29 Apr 2026	12.4	3.317 AU	2.477 AU	17h07m	-15°01'	140.6°	11.1°
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
2026-04-29 00:00 UT   17 07 05.0   -15 01 52     2.477    3.317  140.6   11.1   266   12.4 
2026-04-29 21:19 UT   17 06 43.9   -14 59 17     2.469    3.317  141.5   10.9   265   12.3 
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 
2026-05-12 00:00 UT   17 00 30.1   -14 24 07     2.379    3.318  154.2    7.6   258   12.1 
2026-05-13 00:00 UT   16 59 52.8   -14 21 16     2.373    3.318  155.2    7.3   258   12.1 
2026-05-14 00:00 UT   16 59 14.5   -14 18 27     2.368    3.318  156.3    7.0   257   12.1 
2026-05-15 00:00 UT   16 58 35.4   -14 15 38     2.362    3.318  157.3    6.7   255   12.1 
2026-05-16 00:00 UT   16 57 55.6   -14 12 51     2.357    3.318  158.4    6.5   254   12.1 
2026-05-17 00:00 UT   16 57 14.9   -14 10 05     2.352    3.318  159.4    6.2   253   12.0 
2026-05-18 00:00 UT   16 56 33.6   -14 07 21     2.348    3.318  160.4    5.9   252   12.0 
2026-05-19 00:00 UT   16 55 51.6   -14 04 38     2.344    3.318  161.4    5.6   250   12.0 
2026-05-20 00:00 UT   16 55 08.9   -14 01 57     2.340    3.318  162.4    5.3   248   12.0 
2026-05-21 00:00 UT   16 54 25.6   -13 59 18     2.336    3.318  163.4    5.0   246   12.0 
2026-05-22 00:00 UT   16 53 41.8   -13 56 40     2.332    3.318  164.3    4.7   244   11.9 
2026-05-23 00:00 UT   16 52 57.5   -13 54 05     2.329    3.318  165.3    4.5   242   11.9 
2026-05-24 00:00 UT   16 52 12.7   -13 51 32     2.326    3.318  166.2    4.2   239   11.9 
2026-05-25 00:00 UT   16 51 27.4   -13 49 01     2.324    3.318  167.0    3.9   236   11.9 
2026-05-26 00:00 UT   16 50 41.8   -13 46 32     2.321    3.318  167.9    3.7   232   11.9 
2026-05-27 00:00 UT   16 49 55.8   -13 44 06     2.319    3.319  168.6    3.5   228   11.9 
2026-05-28 00:00 UT   16 49 09.6   -13 41 42     2.318    3.319  169.3    3.2   223   11.9 
2026-05-29 00:00 UT   16 48 23.0   -13 39 21     2.316    3.319  169.9    3.1   218   11.8 

    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.