(797455) 2011 HJ7
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	21 Mar 2026	25.1	1.897 AU	1.130 AU	08h36m	+20°20'	126.1°	25.1°

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 HJ7 are:

            e (Eccentricity)                : 0.5161515
            a (Semimajor axis)              : 1.2509868
            i (Inclination)                 : 1.11619
            Ω (Longitude of ascending node) : 34.33000
            ω (Argument of perihelion)      : 297.31232
            M (Mean anomaly)                : 94.46922
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : -28.35325
            B (Latitude of perihelion)      : -0.99174
            P (Orbital period in years)     : 1.40            
        

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
2026-03-21 00:00 UT   08 36 00.6   +20 20 41     1.130    1.897  126.1   25.1   106   25.1 
2026-03-21 08:48 UT   08 35 48.8   +20 20 58     1.134    1.897  125.7   25.2   106   25.1 
2026-03-22 00:00 UT   08 35 29.3   +20 21 25     1.140    1.897  125.0   25.5   106   25.2 
2026-03-23 00:00 UT   08 35 01.1   +20 21 57     1.151    1.897  123.9   25.8   106   25.2 
2026-03-24 00:00 UT   08 34 36.0   +20 22 19     1.161    1.897  122.8   26.2   105   25.2 
2026-03-25 00:00 UT   08 34 14.0   +20 22 30     1.172    1.897  121.8   26.6   105   25.3 
2026-03-26 00:00 UT   08 33 54.9   +20 22 30     1.182    1.896  120.7   26.9   105   25.3 
2026-03-27 00:00 UT   08 33 38.8   +20 22 20     1.193    1.896  119.7   27.2   105   25.3 
2026-03-28 00:00 UT   08 33 25.6   +20 22 01     1.204    1.896  118.6   27.5   105   25.3 
2026-03-29 00:00 UT   08 33 15.2   +20 21 32     1.214    1.896  117.6   27.8   105   25.4 
2026-03-30 00:00 UT   08 33 07.6   +20 20 53     1.225    1.895  116.6   28.1   105   25.4 
2026-03-31 00:00 UT   08 33 02.7   +20 20 06     1.236    1.895  115.6   28.4   105   25.4 
2026-04-01 00:00 UT   08 33 00.5   +20 19 09     1.247    1.895  114.6   28.7   105   25.4 
2026-04-02 00:00 UT   08 33 00.9   +20 18 04     1.258    1.894  113.6   28.9   105   25.5 
2026-04-03 00:00 UT   08 33 03.9   +20 16 51     1.269    1.894  112.6   29.2   105   25.5 
2026-04-04 00:00 UT   08 33 09.4   +20 15 29     1.280    1.893  111.7   29.4   105   25.5 
2026-04-05 00:00 UT   08 33 17.3   +20 13 59     1.291    1.893  110.7   29.6   105   25.5 
2026-04-06 00:00 UT   08 33 27.6   +20 12 21     1.303    1.892  109.8   29.8   105   25.6 
2026-04-07 00:00 UT   08 33 40.3   +20 10 35     1.314    1.892  108.9   30.0   105   25.6 
2026-04-08 00:00 UT   08 33 55.4   +20 08 42     1.325    1.891  107.9   30.2   105   25.6 
2026-04-09 00:00 UT   08 34 12.6   +20 06 41     1.336    1.890  107.0   30.4   105   25.6 
2026-04-10 00:00 UT   08 34 32.1   +20 04 32     1.348    1.889  106.1   30.6   105   25.7 
2026-04-11 00:00 UT   08 34 53.8   +20 02 17     1.359    1.889  105.2   30.8   105   25.7 
2026-04-12 00:00 UT   08 35 17.6   +19 59 54     1.370    1.888  104.4   31.0   105   25.7 
2026-04-13 00:00 UT   08 35 43.5   +19 57 24     1.381    1.887  103.5   31.1   105   25.7 
2026-04-14 00:00 UT   08 36 11.4   +19 54 47     1.393    1.886  102.6   31.3   105   25.8 
2026-04-15 00:00 UT   08 36 41.4   +19 52 03     1.404    1.885  101.8   31.4   105   25.8 
2026-04-16 00:00 UT   08 37 13.3   +19 49 12     1.415    1.884  100.9   31.5   105   25.8 
2026-04-17 00:00 UT   08 37 47.1   +19 46 14     1.427    1.883  100.1   31.7   105   25.8 
2026-04-18 00:00 UT   08 38 22.7   +19 43 10     1.438    1.882   99.3   31.8   105   25.8 
2026-04-19 00:00 UT   08 39 00.2   +19 39 59     1.449    1.881   98.4   31.9   105   25.9 
2026-04-20 00:00 UT   08 39 39.5   +19 36 41     1.461    1.879   97.6   32.0   105   25.9 

    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.