(48) Doris
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	5 Jul 2025	13.2	3.216 AU	3.286 AU	12h02m	+01°28'	77.2°	18.0°
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)                : 0.0664039
            a (Semimajor axis)              : 3.1122532
            i (Inclination)                 : 6.55846
            Ω (Longitude of ascending node) : 183.43070
            ω (Argument of perihelion)      : 251.21998
            M (Mean anomaly)                : 105.97925
            Epoch                           : 2025 May 05

            L (Longitude of perihelion)     : 254.53572
            B (Latitude of perihelion)      : -6.20789
            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. A more printer-friendly version of the same chart can be found below.

Ephemerides:

Date       Time       RA (2000)    DEC (2000)    delta   radius  elong  phase   PA    magn
2025-07-05 00:00 UT   12 02 46.2   +01 28 02     3.286    3.216   77.2   18.0   113   13.2 
2025-07-05 16:36 UT   12 03 21.1   +01 24 46     3.295    3.217   76.7   17.9   113   13.2 
2025-07-06 00:00 UT   12 03 36.8   +01 23 17     3.300    3.217   76.4   17.9   113   13.2 
2025-07-07 00:00 UT   12 04 28.1   +01 18 29     3.314    3.217   75.7   17.8   113   13.2 
2025-07-08 00:00 UT   12 05 19.9   +01 13 36     3.328    3.218   75.0   17.8   113   13.2 
2025-07-09 00:00 UT   12 06 12.3   +01 08 39     3.342    3.218   74.3   17.7   113   13.2 
2025-07-10 00:00 UT   12 07 05.2   +01 03 38     3.356    3.219   73.5   17.6   113   13.2 
2025-07-11 00:00 UT   12 07 58.7   +00 58 33     3.370    3.219   72.8   17.6   113   13.2 
2025-07-12 00:00 UT   12 08 52.8   +00 53 24     3.383    3.220   72.1   17.5   113   13.2 
2025-07-13 00:00 UT   12 09 47.4   +00 48 12     3.397    3.221   71.4   17.4   113   13.2 
2025-07-14 00:00 UT   12 10 42.5   +00 42 56     3.411    3.221   70.7   17.3   113   13.2 
2025-07-15 00:00 UT   12 11 38.2   +00 37 36     3.424    3.222   70.0   17.2   113   13.2 
2025-07-16 00:00 UT   12 12 34.3   +00 32 13     3.438    3.222   69.3   17.2   113   13.2 
2025-07-17 00:00 UT   12 13 31.0   +00 26 47     3.452    3.223   68.6   17.1   113   13.3 
2025-07-18 00:00 UT   12 14 28.2   +00 21 17     3.465    3.223   67.9   17.0   113   13.3 
2025-07-19 00:00 UT   12 15 25.9   +00 15 43     3.478    3.224   67.2   16.9   113   13.3 
2025-07-20 00:00 UT   12 16 24.1   +00 10 06     3.492    3.224   66.5   16.8   113   13.3 
2025-07-21 00:00 UT   12 17 22.7   +00 04 26     3.505    3.225   65.8   16.7   113   13.3 
2025-07-22 00:00 UT   12 18 21.8   +00 01 17     3.518    3.225   65.1   16.6   113   13.3 
2025-07-23 00:00 UT   12 19 21.4   +00 07 03     3.531    3.226   64.4   16.5   112   13.3 
2025-07-24 00:00 UT   12 20 21.5   +00 12 53     3.544    3.226   63.8   16.4   112   13.3 
2025-07-25 00:00 UT   12 21 22.0   +00 18 45     3.557    3.227   63.1   16.3   112   13.3 
2025-07-26 00:00 UT   12 22 23.0   +00 24 41     3.570    3.227   62.4   16.2   112   13.3 
2025-07-27 00:00 UT   12 23 24.4   +00 30 39     3.583    3.228   61.7   16.1   112   13.3 
2025-07-28 00:00 UT   12 24 26.3   +00 36 40     3.596    3.228   61.0   16.0   112   13.3 
2025-07-29 00:00 UT   12 25 28.6   +00 42 43     3.608    3.229   60.3   15.9   112   13.3 
2025-07-30 00:00 UT   12 26 31.3   +00 48 50     3.621    3.229   59.7   15.7   112   13.3 
2025-07-31 00:00 UT   12 27 34.4   +00 54 59     3.633    3.230   59.0   15.6   112   13.3 
2025-08-01 00:00 UT   12 28 37.9   -01 01 10     3.646    3.230   58.3   15.5   112   13.3 
2025-08-02 00:00 UT   12 29 41.8   -01 07 24     3.658    3.231   57.7   15.4   112   13.3 
2025-08-03 00:00 UT   12 30 46.1   -01 13 40     3.670    3.232   57.0   15.3   112   13.3 
2025-08-04 00:00 UT   12 31 50.8   -01 19 58     3.682    3.232   56.3   15.1   112   13.3 

    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.