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Comet C/2019 K4

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Comet C/2019 K4 Position

Comet C/2019 K4 is currently in the constellation of Sculptor. The current Right Ascension is 00h 29m 01s and the Declination is -30° 32’ 50”.

00h 29m 01s
-30° 32’ 50”

Simplified sky chart showing where Comet C/2019 K4 is right now in the sky with respect to the brightest stars and constellations (see full screen Online Planetarium)

Map showing Comet C/2019 K4 in Sculptor on March, 29 2020
Field of view: 60x30 degrees
View fullscreen
 = visible to the naked eye
 = binocular, brighter than 10th magnitude
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]

Higher precision deep sky finder chart showing where Comet C/2019 K4 is right now (view fullscreen)

C/2019 K4
RA: 00h 29m 01s
Dec: -30° 32’ 50”
Deep sky finder chart for Comet C/2019 K4
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet C/2019 K4?, a page that provides all the information needed to find Comet C/2019 K4 in the sky and additional links to sky charts.

Comet C/2019 K4 Distance

The distance of Comet C/2019 K4 from Earth is currently 690,849,774 kilometers, equivalent to 4.618046 Astronomical Units. Light takes 38 minutes and 24.4268 seconds to travel from Comet C/2019 K4 and arrive to us.

38 minutes and 24.4268 seconds

The following chart shows the distance of Comet C/2019 K4 from Earth as a function of time. In the chart the distance data is measured in Astronomical Units and sampled with an interval of 1 day.

Distance of Comet C/2019 K4 from Earth between January 2013 and December 2100

The value of the reported distance might be somewhat inaccurate around the times of closest approach for objects passing extremely close to Earth. The value of the distance of C/2019 K4 from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Comet C/2019 K4 to Earth

Between January 2013 and December 2100 the closest approach of Comet C/2019 K4 to Earth happens on Tue Sep 17 2019 at a distance of 1.50691503 Astronomical Units, or 225,431,280 kilometers:

Tue Sep 17 2019

NOTE: values for the closest approach are computed with a sampling interval of 1 day.

Comet C/2019 K4 brightness

The current visual magnitude of Comet C/2019 K4 is 21.08.


The observed magnitude and coma diameter values are derived from the Comet Observers Database by averaging the values reported in recent observations (more recent than 4 days), when available. The Estimated Magnitude comes from the JPL Horizons ephemerides service and might be inaccurate given the highly dynamic and unpredictable behavior of comets. When available, please refer to the Observed Magnitude value and consider the Estimated Magnitude as a directional indication. We acknowledge with thanks the comet observations from the COBS Comet Observation Database contributed by observers worldwide and used in this table to report recent comet observations.

The following chart is the predicted light curve (visual magnitude as a function of time) of Comet C/2019 K4, according to the most recent ephemerides data. Magnitude data is sampled with a 2 days interval and there might be inaccuracies for objects changing brightness very rapidly during the course of a few days. For comets there could be large discrepancies between the observed and predicted brightness because of their highly dynamic behaviour.

Predicted magnitude of Comet C/2019 K4 between January 2013 and December 2100

Comet C/2019 K4 rise and set times

Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

Today's Comet C/2019 K4 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 120.5°
Max altitude: 8.0°
Azimuth: 239.5°
Comet C/2019 K4 is below the horizon from Greenwich, United Kingdom

The rise and set times are defined as the time at which the upper limb of Comet C/2019 K4 touches the horizon, considering the effect of the atmospheric refraction. As the atmospheric conditions cannot be modeled precisely the times reported here should be considered correct with an approximation of few minutes.

Comet C/2019 K4 Orbital Elements

The following table lists the orbital elements of Comet C/2019 K4 at epoch 21 August 2019 00:00 UTC (JD: 2458717.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.99904705
Orbit inclination i 105.30517750°
Perihelion distance q 2.25940863 AU
338,002,720 km
Aphelion distance Q 4,739.65420911 AU
709,042,178,959 km
Semi-major axis a 2,370.95680887 AU
354,690,090,840 km
Orbital period period 115,449.9300 years
42,168,086.1807 days
Date of perihelion transit Tp 2019-Jun-16 10:02:22
2,458,650.9183 JD
Next perihelion transit 117471-Oct-03 14:22
44,626,737.0990 JD
Argument of perihelion peri 139.77175907663°
Longitude of the ascending node node 180.16513825026°
Mean anomaly M 0.00056842528961933°
Mean motion n 0.00000854°/day

Visualization of Comet C/2019 K4 Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet C/2019 K4 with respect of the Sun and the orbits of the major planets. The position of Comet C/2019 K4 and the planets along their orbits in this diagram accurately represents the current configuration of the objects in the Solar System. This is an experimental feature and it requires a WebGL enabled browser. Please provide us feedback!

Comet C/2019 K4 15 Days Ephemeris

The following table lists the ephemerides of Comet C/2019 K4 computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet C/2019 K4 in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2020 Mar 22 00h 21m 02s -30° 06’ 53” 21.01 Sculptor
2020 Mar 23 00h 22m 01s -30° 09’ 53” 21.02 Sculptor
2020 Mar 24 00h 23m 03s -30° 12’ 59” 21.03 Sculptor
2020 Mar 25 00h 24m 03s -30° 16’ 08” 21.04 Sculptor
2020 Mar 26 00h 25m 05s -30° 19’ 23” 21.05 Sculptor
2020 Mar 27 00h 26m 04s -30° 22’ 42” 21.06 Sculptor
2020 Mar 28 00h 27m 06s -30° 26’ 07” 21.07 Sculptor
2020 Mar 29 00h 28m 06s -30° 29’ 36” 21.08 Sculptor
2020 Mar 30 00h 29m 08s -30° 33’ 12” 21.08 Sculptor
2020 Mar 31 00h 30m 07s -30° 36’ 52” 21.09 Sculptor
2020 Apr 01 00h 31m 09s -30° 40’ 38” 21.10 Sculptor
2020 Apr 02 00h 32m 09s -30° 44’ 30” 21.11 Sculptor
2020 Apr 03 00h 33m 10s -30° 48’ 28” 21.12 Sculptor
2020 Apr 04 00h 34m 10s -30° 52’ 31” 21.13 Sculptor