C/2019 K5 (Young)
ephemeris	date	magn	radius	delta	ra	dec	elong	phase	PA
Perihelion	21 Jun 2019	15.8	2.053 AU	2.170 AU	01h12m	+09°01'	69.7°	27.7°	248°
Nearest approach	9 Oct 2019	15.7	2.426 AU	1.565 AU	03h33m	+03°01'	141.2°	14.9°	276°
Today	27 Dec 2024	27.9	15.567 AU	14.801 AU	08h52m	+05°27'	140.0°	2.3°	300°

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/2019 K5 (Young) are:

            e (Eccentricity)                : 0.9878840
            q (Perihelion distance)         : 2.0526680
            i (Inclination)                 : 15.30050
            Ω (Longitude of ascending node) : 177.24540
            ω (Argument of perihelion)      : 175.15450
            L (Longitude of perihelion)     : 172.57087
            B (Latitude of perihelion)      : 1.27722
            T (Time of perihelion passage)  : 2458656.38170
            P (Orbital period in years)     : 2205.16

            Epoch                           : 2024 Dec 25
            Reference                       : MPEC 2021-P47

            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 (13.00 + 5 log[∆] + 10.00 log[r]), whereas the red curve is being recalculated every 6 hours based on the available COBS/MPC observations (currently 11.23 + 5 log[∆] + 9.08 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
2024-12-27 00:00 UT   08 52 43.5   +05 27 51    14.801   15.567  139.9    2.3   300   27.9 
2024-12-27 02:03 UT   08 52 42.6   +05 27 53    14.801   15.567  140.0    2.3   300   27.9 
2024-12-28 00:00 UT   08 52 32.5   +05 28 14    14.796   15.572  140.9    2.3   301   27.9 
2024-12-29 00:00 UT   08 52 21.3   +05 28 38    14.792   15.578  141.9    2.2   301   27.9 
2024-12-30 00:00 UT   08 52 09.9   +05 29 04    14.787   15.583  142.9    2.2   302   27.9 
2024-12-31 00:00 UT   08 51 58.4   +05 29 32    14.783   15.589  143.9    2.1   302   27.9 
2025-01-01 00:00 UT   08 51 46.8   +05 30 00    14.779   15.594  144.9    2.1   303   27.9 
2025-01-02 00:00 UT   08 51 35.0   +05 30 30    14.776   15.600  145.9    2.0   304   27.9 
2025-01-03 00:00 UT   08 51 23.1   +05 31 02    14.772   15.606  146.9    2.0   304   27.9 
2025-01-04 00:00 UT   08 51 11.0   +05 31 34    14.769   15.611  147.9    1.9   305   27.9 
2025-01-05 00:00 UT   08 50 58.8   +05 32 08    14.766   15.617  148.9    1.9   306   27.9 
2025-01-06 00:00 UT   08 50 46.5   +05 32 43    14.764   15.622  149.9    1.8   307   27.9 

    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.