(162082) 1998 HL1
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	23 Nov 2025	22.7	1.461 AU	1.950 AU	12h36m	-16°24'	46.7°	29.5°

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 1998 HL1 are:

            e (Eccentricity)                : 0.1870537
            a (Semimajor axis)              : 1.2463126
            i (Inclination)                 : 20.05270
            Ω (Longitude of ascending node) : 213.52468
            ω (Argument of perihelion)      : 148.66800
            M (Mean anomaly)                : 151.55596
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 183.76076
            B (Latitude of perihelion)      : 10.27067
            P (Orbital period in years)     : 1.39            
        

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
2025-11-23 00:00 UT   12 36 57.7   -16 24 05     1.950    1.461   46.7   29.5   283   22.7 
2025-11-23 11:47 UT   12 38 13.0   -16 30 29     1.947    1.462   46.8   29.5   283   22.7 
2025-11-24 00:00 UT   12 39 31.1   -16 37 06     1.944    1.462   47.0   29.6   283   22.7 
2025-11-25 00:00 UT   12 42 04.7   -16 49 60     1.939    1.463   47.3   29.8   283   22.7 
2025-11-26 00:00 UT   12 44 38.3   -17 02 48     1.934    1.464   47.7   29.9   283   22.7 
2025-11-27 00:00 UT   12 47 12.0   -17 15 28     1.928    1.465   48.0   30.0   283   22.7 
2025-11-28 00:00 UT   12 49 45.7   -17 28 02     1.923    1.466   48.3   30.2   283   22.7 
2025-11-29 00:00 UT   12 52 19.6   -17 40 29     1.917    1.466   48.7   30.3   283   22.7 
2025-11-30 00:00 UT   12 54 53.6   -17 52 49     1.911    1.467   49.0   30.5   283   22.7 
2025-12-01 00:00 UT   12 57 27.6   -18 05 02     1.905    1.468   49.4   30.6   283   22.7 
2025-12-02 00:00 UT   13 00 01.8   -18 17 08     1.899    1.469   49.7   30.8   284   22.7 
2025-12-03 00:00 UT   13 02 36.1   -18 29 06     1.893    1.469   50.0   30.9   284   22.7 
2025-12-04 00:00 UT   13 05 10.5   -18 40 57     1.887    1.470   50.4   31.1   284   22.7 
2025-12-05 00:00 UT   13 07 45.1   -18 52 40     1.881    1.471   50.7   31.2   284   22.7 
2025-12-06 00:00 UT   13 10 19.8   -19 04 15     1.875    1.471   51.1   31.4   284   22.7 

    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.