C/2020 F2 (ATLAS)
ephemeris	date	magn	radius	delta	ra	dec	elong	phase	PA
Nearest approach	19 Apr 2022	18.0	8.827 AU	7.845 AU	14h00m	+01°17'	167.2°	1.4°	193°
Perihelion	12 Jul 2022	18.2	8.814 AU	8.813 AU	13h19m	+04°45'	86.7°	6.6°	112°
Today	5 Jul 2025	19.7	10.778 AU	11.465 AU	10h21m	+26°37'	45.6°	3.9°	97°

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 F2 (ATLAS) are:

            e (Eccentricity)                : 1.0025960
            q (Perihelion distance)         : 8.8135310
            i (Inclination)                 : 163.58970
            Ω (Longitude of ascending node) : 250.30080
            ω (Argument of perihelion)      : 48.23730
            L (Longitude of perihelion)     : 203.24980
            B (Latitude of perihelion)      : 12.16513
            T (Time of perihelion passage)  : 2459773.01780

            Epoch                           : 2025 Jul 05
            Reference                       : MPC184409

            Classification(s):              : Nearly isotropic; New (a > 10000 AU)
        

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 (4.50 + 5 log[∆] + 10.00 log[r]), whereas the red curve is being recalculated every 6 hours based on the available COBS/MPC observations (currently 4.06 + 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
2025-07-05 00:00 UT   10 21 05.4   +26 38 51    11.450   10.775   46.4    3.9    97   19.7 
2025-07-05 23:39 UT   10 21 10.7   +26 37 16    11.465   10.778   45.6    3.9    97   19.7 
2025-07-06 00:00 UT   10 21 10.7   +26 37 15    11.465   10.778   45.5    3.9    97   19.7 
2025-07-07 00:00 UT   10 21 16.4   +26 35 39    11.480   10.781   44.7    3.8    96   19.7 
2025-07-08 00:00 UT   10 21 22.3   +26 34 02    11.494   10.784   43.8    3.7    96   19.7 
2025-07-09 00:00 UT   10 21 28.4   +26 32 26    11.509   10.787   43.0    3.7    95   19.7 
2025-07-10 00:00 UT   10 21 34.8   +26 30 50    11.523   10.790   42.1    3.6    95   19.7 
2025-07-11 00:00 UT   10 21 41.4   +26 29 13    11.537   10.794   41.3    3.6    94   19.7 
2025-07-12 00:00 UT   10 21 48.2   +26 27 36    11.550   10.797   40.4    3.5    94   19.7 
2025-07-13 00:00 UT   10 21 55.3   +26 25 60    11.564   10.800   39.6    3.4    93   19.7 
2025-07-14 00:00 UT   10 22 02.6   +26 24 23    11.577   10.803   38.7    3.4    92   19.7 
2025-07-15 00:00 UT   10 22 10.1   +26 22 47    11.590   10.806   37.9    3.3    92   19.7 

    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.