2020 RD5
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	8 Jun 2026	27.9	2.731 AU	1.730 AU	17h16m	-11°02'	167.8°	4.5°

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 2020 RD5 are:

            e (Eccentricity)                : 0.5933097
            a (Semimajor axis)              : 1.7158656
            i (Inclination)                 : 7.60870
            Ω (Longitude of ascending node) : 174.89856
            ω (Argument of perihelion)      : 265.75080
            M (Mean anomaly)                : 85.40460
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 260.61176
            B (Latitude of perihelion)      : -7.58766
            P (Orbital period in years)     : 2.25            
        

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
2026-06-08 00:00 UT   17 16 31.8   -11 02 58     1.730    2.731  167.8    4.5   195   27.9 
2026-06-08 17:59 UT   17 15 29.6   -11 01 30     1.730    2.731  168.0    4.4   190   27.9 
2026-06-09 00:00 UT   17 15 08.8   -11 01 01     1.730    2.731  168.0    4.4   189   27.9 
2026-06-10 00:00 UT   17 13 45.7   -10 59 09     1.730    2.731  168.0    4.4   183   27.9 
2026-06-11 00:00 UT   17 12 22.6   -10 57 22     1.731    2.732  167.9    4.5   177   27.9 
2026-06-12 00:00 UT   17 10 59.6   -10 55 42     1.731    2.732  167.6    4.6   171   27.9 
2026-06-13 00:00 UT   17 09 36.8   -10 54 06     1.733    2.732  167.3    4.7   165   27.9 
2026-06-14 00:00 UT   17 08 14.2   -10 52 37     1.734    2.733  166.8    4.9   160   27.9 
2026-06-15 00:00 UT   17 06 52.0   -10 51 13     1.736    2.733  166.2    5.1   155   27.9 
2026-06-16 00:00 UT   17 05 30.1   -10 49 55     1.738    2.733  165.5    5.3   151   27.9 
2026-06-17 00:00 UT   17 04 08.8   -10 48 43     1.740    2.733  164.8    5.6   147   27.9 
2026-06-18 00:00 UT   17 02 48.0   -10 47 37     1.742    2.733  164.0    5.9   143   28.0 
2026-06-19 00:00 UT   17 01 27.8   -10 46 37     1.745    2.734  163.1    6.2   140   28.0 
2026-06-20 00:00 UT   17 00 08.4   -10 45 43     1.749    2.734  162.2    6.5   137   28.0 
2026-06-21 00:00 UT   16 58 49.7   -10 44 55     1.752    2.734  161.2    6.9   134   28.0 
2026-06-22 00:00 UT   16 57 31.9   -10 44 13     1.756    2.734  160.2    7.2   132   28.0 
2026-06-23 00:00 UT   16 56 14.9   -10 43 38     1.760    2.734  159.2    7.6   130   28.1 
2026-06-24 00:00 UT   16 54 59.0   -10 43 09     1.764    2.734  158.2    7.9   128   28.1 
2026-06-25 00:00 UT   16 53 44.0   -10 42 46     1.769    2.734  157.1    8.3   126   28.1 
2026-06-26 00:00 UT   16 52 30.2   -10 42 30     1.774    2.734  156.1    8.7   125   28.1 
2026-06-27 00:00 UT   16 51 17.5   -10 42 19     1.779    2.734  155.0    9.0   123   28.1 
2026-06-28 00:00 UT   16 50 05.9   -10 42 15     1.784    2.734  153.9    9.4   122   28.2 
2026-06-29 00:00 UT   16 48 55.6   -10 42 17     1.790    2.734  152.8    9.8   121   28.2 
2026-06-30 00:00 UT   16 47 46.6   -10 42 26     1.796    2.734  151.7   10.2   120   28.2 
2026-07-01 00:00 UT   16 46 38.9   -10 42 40     1.802    2.733  150.6   10.5   119   28.2 
2026-07-02 00:00 UT   16 45 32.6   -10 43 01     1.808    2.733  149.5   10.9   118   28.3 
2026-07-03 00:00 UT   16 44 27.7   -10 43 28     1.815    2.733  148.4   11.2   117   28.3 
2026-07-04 00:00 UT   16 43 24.2   -10 44 02     1.822    2.733  147.3   11.6   116   28.3 
2026-07-05 00:00 UT   16 42 22.3   -10 44 41     1.829    2.733  146.1   12.0   115   28.3 

    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.