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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 Andromeda. The current Right Ascension is 01h 33m 16s and the Declination is +37° 56’ 13”.

01h 33m 16s
+37° 56’ 13”

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

Map showing Comet C/2019 K4 in Andromeda on July, 22 2019
Field of view: 60x30 degrees
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 = visible to the naked eye
 = binocular, brighter than 10th magnitude
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]

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

C/2019 K4
RA: 01h 33m 16s
Dec: +37° 56’ 13”
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 325,080,359 kilometers, equivalent to 2.173028 Astronomical Units. Light takes 18 minutes and 4.3514 seconds to travel from Comet C/2019 K4 and arrive to us.

18 minutes and 4.3514 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 January 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 January 2100 the closest approach of Comet C/2019 K4 to Earth happens on Tue Sep 17 2019 at a distance of 1.50330927 Astronomical Units, or 224,891,867 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 17.79.


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 behvior 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 January 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: 52.1°
Max altitude: 76.5°
Azimuth: 307.9°
Comet C/2019 K4 is above 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, consideting the effect of the atmospheric refraction. As the atmoshpere 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 02 June 2019 00:00 UTC (JD: 2458637.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.99597476
Orbit inclination i 105.31776521°
Perihelion distance q 2.25680253 AU
337,612,854 km
Aphelion distance Q 1,119.06999362 AU
167,410,488,546 km
Semi-major axis a 560.66339808 AU
83,874,050,700 km
Orbital period period 13,275.8200 years
4,848,994.9764 days
Date of perihelion transit Tp 2019-Jun-16 12:43:30
2,458,651.0302 JD
Next perihelion transit 15295-Jul-21 12:09
7,307,646.0066 JD
Argument of perihelion peri 139.80930855623°
Longitude of the ascending node node 180.11917118196°
Mean anomaly M 359.99899548713°
Mean motion n 0.00007424°/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
2019 Jul 15 01h 35m 08s +39° 25’ 36” 17.88 Andromeda
2019 Jul 16 01h 34m 59s +39° 14’ 32” 17.87 Andromeda
2019 Jul 17 01h 34m 49s +39° 03’ 14” 17.86 Andromeda
2019 Jul 18 01h 34m 36s +38° 51’ 38” 17.85 Andromeda
2019 Jul 19 01h 34m 22s +38° 39’ 43” 17.83 Andromeda
2019 Jul 20 01h 34m 05s +38° 27’ 32” 17.82 Andromeda
2019 Jul 21 01h 33m 47s +38° 15’ 01” 17.81 Andromeda
2019 Jul 22 01h 33m 27s +38° 02’ 09” 17.80 Andromeda
2019 Jul 23 01h 33m 03s +37° 48’ 57” 17.78 Andromeda
2019 Jul 24 01h 32m 39s +37° 35’ 25” 17.77 Andromeda
2019 Jul 25 01h 32m 11s +37° 21’ 29” 17.76 Andromeda
2019 Jul 26 01h 31m 41s +37° 07’ 11” 17.75 Andromeda
2019 Jul 27 01h 31m 09s +36° 52’ 29” 17.73 Andromeda
2019 Jul 28 01h 30m 36s +36° 37’ 23” 17.72 Andromeda