C/2014 S2 (PANSTARRS)
ephemeris	date	magn	radius	delta	ra	dec	elong	phase	PA
Perihelion	9 Dec 2015	9.1	2.073 AU	1.887 AU	16h52m	+63°32'	86.4°	28.3°	357°
Nearest approach	26 Feb 2016	9.4	2.270 AU	1.808 AU	15h18m	+70°56'	104.6°	25.0°	254°
Today	19 Sep 2025	25.2	23.405 AU	23.929 AU	12h39m	-54°55'	57.5°	2.1°	164°

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.)

The orbital elements of C/2014 S2 (PANSTARRS) are:

            e (Eccentricity)                : 0.9877510
            q (Perihelion distance)         : 2.0730450
            i (Inclination)                 : 64.57130
            Ω (Longitude of ascending node) : 8.21520
            ω (Argument of perihelion)      : 87.19600
            L (Longitude of perihelion)     : 91.70788
            B (Latitude of perihelion)      : 64.42740
            T (Time of perihelion passage)  : 2457366.47310
            P (Orbital period in years)     : 2201.72

            Epoch                           : 2022 Mar 31
            Reference                       : MPC104790

            Classification(s):              : Nearly isotropic; Returning (a < 10000 AU); External (P > 200 years)
        

The light curve chart below shows the estimated development of the comet's magnitude. Blue and black dots are visual and photometric CCD observations respectively from COBS or the MPC. The gray curve is based on the absolute magnitude and slope parameter as calculated from the original MPEC, or the latest values provided by the MPC (10.00 + 5 log[∆] + 10.00 log[r]), whereas the red curve is being recalculated every 6 hours based on the available COBS/MPC observations (currently 4.59 + 5 log[∆] + 10.00 log[r]).

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.
A more printer-friendly version of the same chart can be found further down this page as well.

The following chart shows the current location of the comet in a smaller, upside-down telescopic field of view.

A printable version of the short-term path of the comet in a field of view that is optimized for (~10x50) binoculars and finderscopes.

Ephemerides:

Date       Time       RA (2000)    DEC (2000)    delta   radius  elong  phase   PA    magn
2025-09-19 00:00 UT   12 39 00.9   -54 55 33    23.926   23.404   57.6    2.1   164   25.2 
2025-09-19 07:02 UT   12 39 05.4   -54 55 39    23.929   23.405   57.5    2.1   164   25.2 
2025-09-20 00:00 UT   12 39 16.4   -54 55 56    23.938   23.408   57.1    2.1   165   25.2 
2025-09-21 00:00 UT   12 39 31.9   -54 56 22    23.950   23.413   56.6    2.1   166   25.2 
2025-09-22 00:00 UT   12 39 47.5   -54 56 49    23.962   23.417   56.1    2.0   167   25.2 
2025-09-23 00:00 UT   12 40 03.1   -54 57 19    23.973   23.422   55.6    2.0   168   25.2 
2025-09-24 00:00 UT   12 40 18.7   -54 57 50    23.985   23.427   55.2    2.0   169   25.2 
2025-09-25 00:00 UT   12 40 34.4   -54 58 23    23.996   23.431   54.7    2.0   170   25.2 
2025-09-26 00:00 UT   12 40 50.2   -54 58 58    24.007   23.436   54.2    2.0   171   25.2 
2025-09-27 00:00 UT   12 41 05.9   -54 59 35    24.018   23.441   53.8    2.0   172   25.2 
2025-09-28 00:00 UT   12 41 21.7   -55 00 14    24.029   23.445   53.3    2.0   173   25.2 
2025-09-29 00:00 UT   12 41 37.6   -55 00 54    24.040   23.450   52.9    2.0   174   25.2 

    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.