ephemeris date magn radius delta ra dec elong phase PA
Nearest approach8 Feb 202219.12.117 AU1.155 AU08h31m+26°07'162.6°8.0°127°
Perihelion29 Mar 202219.32.054 AU1.391 AU08h34m+17°38'117.6°25.5°104°
Today22 Apr 202427.56.426 AU6.081 AU19h18m-32°30'105.7°8.7°265°
440P/Kobayashi- 2024-04-22

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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.)

The orbital elements of 440P/Kobayashi are:

            e (Eccentricity)                : 0.7605350
            q (Perihelion distance)         : 2.0538610
            i (Inclination)                 : 12.34240
            Ω (Longitude of ascending node) : 328.84260
            ω (Argument of perihelion)      : 183.28600
            L (Longitude of perihelion)     : 332.05281
            B (Latitude of perihelion)      : -0.70203
            T (Time of perihelion passage)  : 2459668.47940
            P (Orbital period in years)     : 25.12

            Epoch                           : 2024 Apr 21
            Reference                       : MPEC 2022-WQ9

            Classification(s):              : Nearly isotropic; Returning (a < 10000 AU); Halley type (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 light curve is based on the absolute magnitude and slope parameter as calculated from an MPEC, or the latest values provided by the minor planet center. (15.50 + 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.