C/2020 T2 (Palomar)
ephemeris	date	magn	radius	delta	ra	dec	elong	phase	PA
Nearest approach	12 May 2021	10.9	2.173 AU	1.409 AU	13h41m	+29°38'	127.1°	21.8°	151°
Perihelion	10 Jul 2021	10.5	2.055 AU	1.657 AU	14h00m	+05°26'	97.6°	29.4°	113°
Today	26 Dec 2024	37.3	11.111 AU	11.168 AU	00h41m	-25°24'	84.1°	5.1°	67°

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/2020 T2 (Palomar) are:

            e (Eccentricity)                : 0.9925380
            q (Perihelion distance)         : 2.0550250
            i (Inclination)                 : 27.83800
            Ω (Longitude of ascending node) : 83.05160
            ω (Argument of perihelion)      : 150.37370
            L (Longitude of perihelion)     : 56.35501
            B (Latitude of perihelion)      : 13.34677
            T (Time of perihelion passage)  : 2459406.05290
            P (Orbital period in years)     : 4570.28

            Epoch                           : 2024 Dec 25
            Reference                       : MPEC 2022-TD3

            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 (11.00 + 5 log[∆] + 8.00 log[r]), whereas the red curve is being recalculated every 6 hours based on the available COBS/MPC observations (currently -.23 + 5 log[∆] + 30.89 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
2024-12-26 00:00 UT   00 41 01.4   -25 26 45    11.152   11.107   84.8    5.1    67   37.3 
2024-12-26 17:47 UT   00 41 02.9   -25 24 32    11.168   11.111   84.1    5.1    67   37.3 
2024-12-27 00:00 UT   00 41 03.5   -25 23 46    11.174   11.113   83.9    5.0    67   37.3 
2024-12-28 00:00 UT   00 41 06.0   -25 20 44    11.195   11.120   83.0    5.0    67   37.3 
2024-12-29 00:00 UT   00 41 08.8   -25 17 41    11.217   11.126   82.2    5.0    68   37.3 
2024-12-30 00:00 UT   00 41 12.0   -25 14 37    11.239   11.133   81.3    5.0    68   37.3 
2024-12-31 00:00 UT   00 41 15.6   -25 11 31    11.260   11.139   80.4    5.0    69   37.4 
2025-01-01 00:00 UT   00 41 19.5   -25 08 24    11.282   11.146   79.5    5.0    69   37.4 
2025-01-02 00:00 UT   00 41 23.8   -25 05 16    11.303   11.152   78.7    5.0    70   37.4 
2025-01-03 00:00 UT   00 41 28.4   -25 02 07    11.324   11.159   77.8    4.9    70   37.4 
2025-01-04 00:00 UT   00 41 33.4   -24 58 56    11.346   11.165   76.9    4.9    71   37.4 
2025-01-05 00:00 UT   00 41 38.8   -24 55 45    11.367   11.172   76.1    4.9    71   37.4 

    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.