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Comet C/2018 F4 (PANSTARRS)

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Comet C/2018 F4 (PANSTARRS) Position

Comet C/2018 F4 (PANSTARRS) is currently in the constellation of Chamaleon. The current Right Ascension is 13h 21m 57s and the Declination is -78° 39’ 57”.

13h 21m 57s
-78° 39’ 57”

Simplified sky chart showing where Comet C/2018 F4 (PANSTARRS) is right now in the sky with respect to the brightest stars and constellations (see fuillscreen Online Planetarium)

Map showing Comet C/2018 F4 (PANSTARRS) in Chamaleon on November, 21 2019
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]

Hihgher precision deep sky finder chart showing where Comet C/2018 F4 (PANSTARRS) is right now (view fullscreen)

RA: 13h 21m 57s
Dec: -78° 39’ 57”
Deep sky finder chart for Comet C/2018 F4 (PANSTARRS)
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet C/2018 F4 (PANSTARRS)?, a page that provides all the information needed to find Comet C/2018 F4 (PANSTARRS) in the sky and additional links to sky charts.

Comet C/2018 F4 (PANSTARRS) Distance

The distance of Comet C/2018 F4 (PANSTARRS) from Earth is currently 569,756,694 kilometers, equivalent to 3.808588 Astronomical Units. Light takes 31 minutes and 40.5038 seconds to travel from Comet C/2018 F4 (PANSTARRS) and arrive to us.

31 minutes and 40.5038 seconds

The following chart shows the distance of Comet C/2018 F4 (PANSTARRS) 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/2018 F4 (PANSTARRS) 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/2018 F4 (PANSTARRS) from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Comet C/2018 F4 (PANSTARRS) to Earth

Between January 2013 and December 2100 the closest approach of Comet C/2018 F4 (PANSTARRS) to Earth happens on Tue May 7 2019 at a distance of 3.25347229 Astronomical Units, or 486,712,528 kilometers:

Tue May 7 2019

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

Comet C/2018 F4 (PANSTARRS) brightness

The current visual magnitude of Comet C/2018 F4 (PANSTARRS) is 16.60.


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/2018 F4 (PANSTARRS), 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/2018 F4 (PANSTARRS) between January 2013 and December 2100

Comet C/2018 F4 (PANSTARRS) rise and set times

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

Comet C/2018 F4 (PANSTARRS) is currently not visible from Greenwich, United Kingdom [change]

The rise and set times are defined as the time at which the upper limb of Comet C/2018 F4 (PANSTARRS) 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/2018 F4 (PANSTARRS) Orbital Elements

The following table lists the orbital elements of Comet C/2018 F4 (PANSTARRS) at epoch 16 July 2018 00:00 UTC (JD: 2458316.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 1.00115840
Orbit inclination i 78.13155349°
Perihelion distance q 3.44126194 AU
514,805,459 km
Aphelion distance Q n.a.
Semi-major axis a n.a.
Orbital period period n.a.
Date of perihelion transit Tp 2019-Dec-03 23:57:35
2,458,821.4983 JD
Argument of perihelion peri 263.16673890051°
Longitude of the ascending node node 26.517870441888°
Mean anomaly M -0.003074027707342°
Mean motion n 0.00000609°/day

Visualization of Comet C/2018 F4 (PANSTARRS) Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet C/2018 F4 (PANSTARRS) with respect of the Sun and the orbits of the major planets. The position of Comet C/2018 F4 (PANSTARRS) 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!

Orbit Diagram of Comet C/2018 F4 (PANSTARRS)
View Comet C/2018 F4 (PANSTARRS) in the 3D Solar System Simulator

Comet C/2018 F4 (PANSTARRS) 15 Days Ephemeris

The following table lists the ephemerides of Comet C/2018 F4 (PANSTARRS) computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet C/2018 F4 (PANSTARRS) in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2019 Nov 14 12h 58m 17s -75° 47’ 00” 16.61 Chamaleon
2019 Nov 15 13h 00m 51s -76° 08’ 30” 16.61 Chamaleon
2019 Nov 16 13h 03m 32s -76° 30’ 03” 16.61 Chamaleon
2019 Nov 17 13h 06m 19s -76° 51’ 43” 16.61 Chamaleon
2019 Nov 18 13h 09m 12s -77° 13’ 28” 16.60 Chamaleon
2019 Nov 19 13h 12m 14s -77° 35’ 18” 16.60 Chamaleon
2019 Nov 20 13h 15m 23s -77° 57’ 14” 16.60 Chamaleon
2019 Nov 21 13h 18m 41s -78° 19’ 11” 16.60 Chamaleon
2019 Nov 22 13h 22m 09s -78° 41’ 12” 16.60 Chamaleon
2019 Nov 23 13h 25m 49s -79° 03’ 16” 16.60 Chamaleon
2019 Nov 24 13h 29m 39s -79° 25’ 23” 16.60 Chamaleon
2019 Nov 25 13h 33m 43s -79° 47’ 30” 16.59 Chamaleon
2019 Nov 26 13h 38m 03s -80° 09’ 38” 16.59 Chamaleon
2019 Nov 27 13h 42m 38s -80° 31’ 44” 16.59 Chamaleon