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P/2019 G1 (PANSTARRS)
ephemeris date magn radius delta ra dec elong phase PA
Today26 Oct 202522.25.246 AU4.587 AU 05h43m+16°18'127.0°8.7°274°
Nearest approach31 Mar 202818.13.079 AU2.095 AU 12h32m+07°32'168.0°3.9°171°
Perihelion3 Aug 202819.02.996 AU3.284 AU 13h09m+00°33'64.8°17.8°109°
P/2019 G1 (PANSTARRS)- 2025-10-26
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. This lightcurve is being recalculated every 6 hours based on the available COBS/MPC observations (currently 11.7 + 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 P/2019 G1 (PANSTARRS) are: 

    e (Eccentricity)                : 0.3302485
    q (Perihelion distance)         : 2.9964628
    i (Inclination)                 : 8.02792
    Ω (Longitude of ascending node) : 127.54548
    ω (Argument of perihelion)      : 86.18295
    L (Longitude of perihelion)     : 213.69077
    B (Latitude of perihelion)      : 8.00999
    T (Time of perihelion passage)  : 2461986.84465
    P (Orbital period in years)     : 9.46

    Epoch                           : 2019 Jun 06
    Reference                       : MPEC 2019-J142

    Classification(s):              : Ecliptic; Jupiter family
    Tisserand (Jupiter)             : 2.896

Ephemerides

Date       Time       RA (2000)    DEC (2000)    delta   radius  elong  phase   PA    magn
2025-10-25 00:00 UT   05 44 10.5   +16 20 15     4.615    5.249  125.0    8.9   273   22.2 
2025-10-26 00:00 UT   05 43 59.3   +16 19 24     4.601    5.247  126.0    8.8   274   22.2 
2025-10-26 21:42 UT   05 43 48.5   +16 18 39     4.587    5.246  127.0    8.7   274   22.2 
2025-10-27 00:00 UT   05 43 47.4   +16 18 35     4.586    5.245  127.1    8.7   274   22.2 
2025-10-28 00:00 UT   05 43 34.6   +16 17 45     4.572    5.243  128.1    8.6   274   22.1 
2025-10-29 00:00 UT   05 43 20.9   +16 16 56     4.558    5.241  129.1    8.5   274   22.1 
2025-10-30 00:00 UT   05 43 06.5   +16 16 07     4.544    5.239  130.2    8.3   274   22.1 
2025-10-31 00:00 UT   05 42 51.3   +16 15 19     4.530    5.238  131.2    8.2   275   22.1 
2025-11-01 00:00 UT   05 42 35.3   +16 14 31     4.516    5.236  132.3    8.1   275   22.1 
2025-11-02 00:00 UT   05 42 18.5   +16 13 44     4.503    5.234  133.3    7.9   275   22.1 
2025-11-03 00:00 UT   05 42 00.9   +16 12 57     4.490    5.232  134.4    7.8   275   22.1 
2025-11-04 00:00 UT   05 41 42.6   +16 12 10     4.477    5.230  135.4    7.6   275   22.1 
2025-11-05 00:00 UT   05 41 23.4   +16 11 25     4.464    5.228  136.5    7.5   276   22.1 




    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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