Your guide to the Solar System and the night sky
🌎 Location: Greenwich, United Kingdom [change]
Comets » 

Comet C/2018 F4 (PANSTARRS)

Available Resources

Comet C/2018 F4 (PANSTARRS) Position

Comet C/2018 F4 (PANSTARRS) is currently in the constellation of Phoenix. The current Right Ascension is 02h 11m 51s and the Declination is -46° 42’ 09”.

02h 11m 51s
-46° 42’ 09”

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 full screen Online Planetarium)

Map showing Comet C/2018 F4 (PANSTARRS) in Phoenix on April, 07 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/2018 F4 (PANSTARRS) is right now (view fullscreen)

RA: 02h 11m 51s
Dec: -46° 42’ 09”
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 613,173,479 kilometers, equivalent to 4.098812 Astronomical Units. Light takes 34 minutes and 5.3266 seconds to travel from Comet C/2018 F4 (PANSTARRS) and arrive to us.

34 minutes and 5.3266 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 3.25348916 Astronomical Units, or 486,715,051 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 16.32.


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/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, 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/2018 F4 (PANSTARRS) Orbital Elements

The following table lists the orbital elements of Comet C/2018 F4 (PANSTARRS) at epoch 06 October 2018 00:00 UTC (JD: 2458398.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 1.00127939
Orbit inclination i 78.11575712°
Perihelion distance q 3.44072598 AU
514,725,281 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 23:40:55
2,458,821.4868 JD
Argument of perihelion peri 263.17625738984°
Longitude of the ascending node node 26.51514461783°
Mean anomaly M -0.0029892436782008°
Mean motion n 0.00000707°/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
2020 Mar 31 02h 03m 43s -48° 41’ 58” 16.28 Eridanus
2020 Apr 01 02h 04m 51s -48° 25’ 04” 16.28 Eridanus
2020 Apr 02 02h 05m 58s -48° 08’ 20” 16.29 Eridanus
2020 Apr 03 02h 07m 05s -47° 51’ 46” 16.30 Eridanus
2020 Apr 04 02h 08m 12s -47° 35’ 22” 16.30 Eridanus
2020 Apr 05 02h 09m 19s -47° 19’ 10” 16.31 Phoenix
2020 Apr 06 02h 10m 24s -47° 03’ 09” 16.31 Phoenix
2020 Apr 07 02h 11m 30s -46° 47’ 17” 16.32 Phoenix
2020 Apr 08 02h 12m 35s -46° 31’ 36” 16.33 Phoenix
2020 Apr 09 02h 13m 40s -46° 16’ 06” 16.33 Phoenix
2020 Apr 10 02h 14m 44s -46° 00’ 47” 16.34 Phoenix
2020 Apr 11 02h 15m 48s -45° 45’ 38” 16.34 Phoenix
2020 Apr 12 02h 16m 53s -45° 30’ 39” 16.35 Phoenix
2020 Apr 13 02h 17m 56s -45° 15’ 52” 16.35 Phoenix