(797455) 2011 HJ7
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	18 Apr 2026	25.8	1.882 AU	1.438 AU	08h38m	+19°43'	99.3°	31.8°

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
2026-04-18 00:00 UT   08 38 22.7   +19 43 10     1.438    1.882   99.3   31.8   105   25.8 
2026-04-18 14:49 UT   08 38 45.7   +19 41 13     1.445    1.881   98.8   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 
2026-04-21 00:00 UT   08 40 20.6   +19 33 17     1.472    1.878   96.8   32.1   105   25.9 
2026-04-22 00:00 UT   08 41 03.3   +19 29 46     1.483    1.877   96.0   32.2   105   25.9 
2026-04-23 00:00 UT   08 41 47.7   +19 26 09     1.494    1.875   95.2   32.3   105   25.9 
2026-04-24 00:00 UT   08 42 33.8   +19 22 26     1.505    1.874   94.4   32.3   105   25.9 
2026-04-25 00:00 UT   08 43 21.4   +19 18 37     1.517    1.873   93.7   32.4   105   26.0 
2026-04-26 00:00 UT   08 44 10.5   +19 14 41     1.528    1.871   92.9   32.5   105   26.0 
2026-04-27 00:00 UT   08 45 01.1   +19 10 39     1.539    1.870   92.1   32.5   105   26.0 
2026-04-28 00:00 UT   08 45 53.2   +19 06 32     1.550    1.868   91.4   32.6   105   26.0 
2026-04-29 00:00 UT   08 46 46.8   +19 02 18     1.561    1.867   90.6   32.6   105   26.0 
2026-04-30 00:00 UT   08 47 41.7   +18 57 58     1.572    1.865   89.9   32.7   105   26.0 
2026-05-01 00:00 UT   08 48 38.0   +18 53 33     1.583    1.863   89.1   32.7   105   26.0 
2026-05-02 00:00 UT   08 49 35.6   +18 49 01     1.593    1.862   88.4   32.8   106   26.1 
2026-05-03 00:00 UT   08 50 34.5   +18 44 24     1.604    1.860   87.7   32.8   106   26.1 
2026-05-04 00:00 UT   08 51 34.6   +18 39 41     1.615    1.858   87.0   32.8   106   26.1 
2026-05-05 00:00 UT   08 52 36.1   +18 34 52     1.626    1.856   86.3   32.8   106   26.1 
2026-05-06 00:00 UT   08 53 38.7   +18 29 58     1.636    1.854   85.6   32.8   106   26.1 
2026-05-07 00:00 UT   08 54 42.5   +18 24 57     1.647    1.852   84.8   32.8   106   26.1 
2026-05-08 00:00 UT   08 55 47.5   +18 19 51     1.657    1.850   84.2   32.9   106   26.1 
2026-05-09 00:00 UT   08 56 53.6   +18 14 39     1.668    1.848   83.5   32.9   106   26.1 
2026-05-10 00:00 UT   08 58 00.8   +18 09 22     1.678    1.846   82.8   32.9   106   26.2 
2026-05-11 00:00 UT   08 59 09.1   +18 03 58     1.688    1.844   82.1   32.8   106   26.2 
2026-05-12 00:00 UT   09 00 18.5   +17 58 29     1.699    1.842   81.4   32.8   106   26.2 
2026-05-13 00:00 UT   09 01 29.0   +17 52 54     1.709    1.840   80.7   32.8   106   26.2 
2026-05-14 00:00 UT   09 02 40.5   +17 47 14     1.719    1.838   80.1   32.8   106   26.2 
2026-05-15 00:00 UT   09 03 53.0   +17 41 27     1.729    1.835   79.4   32.8   106   26.2 
2026-05-16 00:00 UT   09 05 06.5   +17 35 35     1.739    1.833   78.8   32.7   107   26.2 
2026-05-17 00:00 UT   09 06 20.9   +17 29 38     1.749    1.831   78.1   32.7   107   26.2 
2026-05-18 00:00 UT   09 07 36.3   +17 23 34     1.758    1.828   77.5   32.7   107   26.2 

    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.