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Comet 4P/Faye

Comet 4P/Faye is currently in the constellation of Pisces. The current Right Ascension of Comet 4P/Faye is 00h 12m 43s and the Declination is +05° 10’ 24” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current estimated magnitude of Comet 4P/Faye is 15.76 (JPL).

Summary of key facts about Comet 4P/Faye [tip: you can also create a Quick Access page for this data if you access it frequently and would like to have a simpler view]:

00h 12m 43s
+05° 10’ 24”
  • 4P/Faye is above the horizon from Greenwich, United Kingdom [change].
  • It is visible looking in the West-South-West direction at an altitude of 23° above the horizon.
  • Given its current magnitude, 4P/Faye is visible only through long exposure photography.
  • See also 4P/Faye rise and set times.
  • Go to interactive sky chart

If you need to access this information frequently for your observations, you can create a simple customized Quick Access page, so that you can easily bookmark it in your browser favorites or add a shortcut to your mobile phones' home screen.

Additional information about Comet 4P/Faye available on TheSkyLive:

Available Resources

Comet 4P/Faye Position and Finder Charts

Below we provide Comet 4P/Faye finder charts showing where the object is right now in the sky with respect to the brightest stars. The first finder chart has a field of view of 50 degrees, while the second one has a field of view of 10 degrees. Click on each finder chart to access a full screen interactive Online Planetarium.

Map showing Comet 4P/Faye in Pisces on May, 18 2021
Field of view: 50x30 degrees
View fullscreen
Map showing Comet 4P/Faye in Pisces on May, 18 2021
Field of view: 10x6 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, 60 arcmin wide, showing where Comet 4P/Faye is right now. Click on the image to see a more detailed fullscreen tracker view.

RA: 00h 12m 43s
Dec: +05° 10’ 24”
Deep sky finder chart for Comet 4P/Faye
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet 4P/Faye?, a page that provides all the information needed to find Comet 4P/Faye in the sky and additional links to sky charts.

Comet 4P/Faye Distance from Earth

The distance of Comet 4P/Faye from Earth is currently 361,294,706 kilometers, equivalent to 2.415106 Astronomical Units. Light takes 20 minutes and 5.1494 seconds to travel from Comet 4P/Faye and arrive to us.

20 minutes and 5.1494 seconds

The following chart shows the distance of Comet 4P/Faye 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 4P/Faye 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 4P/Faye from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Comet 4P/Faye to Earth

Between January 2013 and December 2100, the closest approach of Comet 4P/Faye to Earth happens on Fri Nov 3 2073 at a distance of 0.616269 Astronomical Units, or 92,192,511 kilometers:

Fri Nov 3 2073

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

Comet 4P/Faye brightness

The current visual magnitude of Comet 4P/Faye is 15.76.


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 4P/Faye, 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 4P/Faye between January 2013 and December 2100

Comet 4P/Faye 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 4P/Faye rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 84.9°
Max altitude: 43.7°
Azimuth: 275.2°

The rise and set times are defined as the time at which the upper limb of Comet 4P/Faye 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 4P/Faye Orbital Elements

The following table lists the orbital elements of Comet 4P/Faye at epoch 27 August 2015 00:00 UTC (JD: 2457262.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.56961755
Orbit inclination i 9.07029451°
Perihelion distance q 1.65187634 AU
247,117,184 km
Aphelion distance Q 6.02444197 AU
901,243,693 km
Semi-major axis a 3.83815916 AU
574,180,439 km
Orbital period period 7.5200 years
2,746.5208 days
Date of perihelion transit Tp 2014-May-29 20:50:57
2,456,807.3687 JD
Next perihelion transit 2021-Dec-05 09:20
2,459,553.8895 JD
Argument of perihelion peri 205.12581771764°
Longitude of the ascending node node 199.14398241151°
Mean anomaly M 59.656296696458°
Mean motion n 0.13107492°/day

Visualization of Comet 4P/Faye Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet 4P/Faye with respect of the Sun and the orbits of the major planets. The position of Comet 4P/Faye 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 4P/Faye 15 Days Ephemeris

The following table lists the ephemerides of Comet 4P/Faye computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet 4P/Faye in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2021 May 11 23h 55m 58s +03° 35’ 38” 15.94 Pisces
2021 May 12 23h 58m 09s +03° 48’ 12” 15.91 Pisces
2021 May 13 00h 00m 23s +04° 00’ 50” 15.89 Pisces
2021 May 14 00h 02m 35s +04° 13’ 27” 15.87 Pisces
2021 May 15 00h 04m 50s +04° 26’ 03” 15.84 Pisces
2021 May 16 00h 07m 04s +04° 38’ 41” 15.82 Pisces
2021 May 17 00h 09m 19s +04° 51’ 20” 15.80 Pisces
2021 May 18 00h 11m 34s +05° 03’ 57” 15.78 Pisces
2021 May 19 00h 13m 49s +05° 16’ 36” 15.75 Pisces
2021 May 20 00h 16m 05s +05° 29’ 14” 15.73 Pisces
2021 May 21 00h 18m 20s +05° 41’ 53” 15.71 Pisces
2021 May 22 00h 20m 38s +05° 54’ 32” 15.68 Pisces
2021 May 23 00h 22m 54s +06° 07’ 09” 15.66 Pisces
2021 May 24 00h 25m 13s +06° 19’ 45” 15.64 Pisces