2011 EH
ephemeris date magn radius delta ra dec elong phase
Today4 Feb 202630.22.128 AU2.585 AU17h27m-25°12'52.1°21.5°
2011 EH - 2026-02-04
astro.vanbuitenen.nl


 
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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 2011 EH are:

            e (Eccentricity)                : 0.4846546
            a (Semimajor axis)              : 1.4756186
            i (Inclination)                 : 2.41507
            Ω (Longitude of ascending node) : 338.67636
            ω (Argument of perihelion)      : 96.97569
            M (Mean anomaly)                : 103.13672
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 255.65819
            B (Latitude of perihelion)      : 2.39718
            P (Orbital period in years)     : 1.79            
        

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
2026-02-04 00:00 UT   17 27 41.8   -25 12 16     2.585    2.128   52.1   21.5   272   30.2 
2026-02-04 21:56 UT   17 29 18.6   -25 13 60     2.577    2.130   52.7   21.6   272   30.2 
2026-02-05 00:00 UT   17 29 27.7   -25 14 09     2.577    2.130   52.8   21.6   272   30.2 
2026-02-06 00:00 UT   17 31 13.1   -25 15 57     2.568    2.132   53.4   21.8   271   30.2 
2026-02-07 00:00 UT   17 32 58.0   -25 17 42     2.559    2.134   54.0   22.0   271   30.2 
2026-02-08 00:00 UT   17 34 42.4   -25 19 21     2.550    2.135   54.6   22.1   271   30.2 
2026-02-09 00:00 UT   17 36 26.3   -25 20 57     2.540    2.137   55.2   22.3   271   30.2 
2026-02-10 00:00 UT   17 38 09.6   -25 22 28     2.531    2.139   55.8   22.4   271   30.2 
2026-02-11 00:00 UT   17 39 52.4   -25 23 56     2.521    2.141   56.5   22.6   271   30.2 
2026-02-12 00:00 UT   17 41 34.6   -25 25 19     2.512    2.142   57.1   22.8   271   30.2 
2026-02-13 00:00 UT   17 43 16.2   -25 26 38     2.502    2.144   57.7   22.9   270   30.2 
2026-02-14 00:00 UT   17 44 57.3   -25 27 54     2.492    2.146   58.4   23.1   270   30.2 
2026-02-15 00:00 UT   17 46 37.8   -25 29 05     2.482    2.147   59.0   23.2   270   30.2 
2026-02-16 00:00 UT   17 48 17.6   -25 30 13     2.472    2.149   59.6   23.4   270   30.2 
2026-02-17 00:00 UT   17 49 56.8   -25 31 18     2.462    2.151   60.3   23.5   270   30.2 
2026-02-18 00:00 UT   17 51 35.5   -25 32 19     2.452    2.152   60.9   23.7   270   30.2 
2026-02-19 00:00 UT   17 53 13.4   -25 33 16     2.442    2.154   61.5   23.8   270   30.2 
2026-02-20 00:00 UT   17 54 50.7   -25 34 10     2.431    2.155   62.2   23.9   269   30.2 
2026-02-21 00:00 UT   17 56 27.4   -25 35 00     2.421    2.157   62.8   24.1   269   30.2 
2026-02-22 00:00 UT   17 58 03.3   -25 35 48     2.410    2.158   63.5   24.2   269   30.2 
2026-02-23 00:00 UT   17 59 38.6   -25 36 32     2.399    2.159   64.1   24.3   269   30.2 
2026-02-24 00:00 UT   18 01 13.2   -25 37 13     2.389    2.161   64.8   24.5   269   30.2 
2026-02-25 00:00 UT   18 02 47.0   -25 37 51     2.378    2.162   65.4   24.6   269   30.2 
2026-02-26 00:00 UT   18 04 20.2   -25 38 26     2.367    2.163   66.1   24.7   269   30.2 


    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.