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462P/LONEOS-PANSTARRS
ephemeris date magn radius delta ra dec elong phase PA
Perihelion31 Jul 202220.42.047 AU1.131 AU 22h57m-05°41'144.9°16.6°246°
Nearest approach27 Aug 202220.32.061 AU1.057 AU 22h47m-03°45'171.2°4.3°223°
Today31 Oct 202529.56.791 AU6.754 AU 08h53m+20°05'88.0°8.4°286°
462P/LONEOS-PANSTARRS- 2025-10-31
astro.vanbuitenen.nl


 
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The interactive orbit chart above shows the comet'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.)


Light curve

The light curve chart below shows the estimated development of the comet's magnitude. Blue and black dots are visual and photometric CCD observations from COBS. The light curve is based on the absolute magnitude and slope parameter as calculated from an MPEC, or the latest values provided by the minor planet center. (17.0 + 5 log[∆] + 10.0 log[r]). An additional green curve is displayed when an increase in apparent brightness is expected due to forward scattering of sunlight, which occurs when a dust-rich comet is located between the Earth and the Sun. (See Marcus 2007)



Charts

The all-sky chart below shows the path of the comet over the same period as the light curve. The comet's current position is marked yellow.





The following chart shows the short-term path of the comet in a field of view that is optimized for (~10x50) binoculars and finderscopes.




Orbital elements

The orbital elements of 462P/LONEOS-PANSTARRS are: 

    e (Eccentricity)                : 0.5787130
    q (Perihelion distance)         : 2.0467550
    i (Inclination)                 : 7.05500
    Ω (Longitude of ascending node) : 322.63400
    ω (Argument of perihelion)      : 4.16320
    L (Longitude of perihelion)     : 326.76579
    B (Latitude of perihelion)      : 0.51089
    T (Time of perihelion passage)  : 2459792.26870
    P (Orbital period in years)     : 10.71

    Epoch                           : 2025 Oct 31
    Reference                       : MPEC 2024-BE0

    Classification(s):              : Ecliptic; Jupiter family
    Tisserand (Jupiter)             : 2.635

Ephemerides

Date       Time       RA (2000)    DEC (2000)    delta   radius  elong  phase   PA    magn
2025-10-30 00:00 UT   08 53 30.7   +20 06 51     6.779    6.787   86.3    8.4   286   29.5 
2025-10-31 00:00 UT   08 53 40.9   +20 06 17     6.764    6.789   87.2    8.4   286   29.5 
2025-10-31 18:18 UT   08 53 48.3   +20 05 52     6.754    6.791   88.0    8.4   286   29.5 
2025-11-01 00:00 UT   08 53 50.6   +20 05 45     6.750    6.792   88.2    8.4   286   29.5 
2025-11-02 00:00 UT   08 53 59.6   +20 05 15     6.736    6.794   89.1    8.4   286   29.5 
2025-11-03 00:00 UT   08 54 08.1   +20 04 48     6.721    6.796   90.1    8.4   286   29.5 
2025-11-04 00:00 UT   08 54 15.9   +20 04 23     6.707    6.799   91.1    8.4   286   29.5 
2025-11-05 00:00 UT   08 54 23.2   +20 04 01     6.693    6.801   92.0    8.4   286   29.5 
2025-11-06 00:00 UT   08 54 29.9   +20 03 41     6.678    6.803   93.0    8.4   286   29.5 
2025-11-07 00:00 UT   08 54 36.0   +20 03 23     6.664    6.806   94.0    8.4   286   29.4 
2025-11-08 00:00 UT   08 54 41.4   +20 03 08     6.650    6.808   95.0    8.3   286   29.4 
2025-11-09 00:00 UT   08 54 46.3   +20 02 55     6.636    6.810   96.0    8.3   286   29.4 
2025-11-10 00:00 UT   08 54 50.5   +20 02 45     6.621    6.813   97.0    8.3   286   29.4 




    Terminology:
            
    delta:  distance between comet and earth in AU
    radius: distance between comet 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-comet)    
    phase:  phase angle in degrees (angle sun-comet-earth)        
    AU:     Astronomical Unit (mean distance between earth and sun: 149597870.7 km

Orbital elements usually provided by the MPC (Minor Planet Center).
Observations contributed by observers worldwide, via COBS (Comet Observation Database) or 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.

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