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🌎  Greenwich, United Kingdom [change]

Comet 65P/Gunn

Comet 65P/Gunn is currently in the constellation of Gemini. The current Right Ascension of Comet 65P/Gunn is 07h 37m 25s and the Declination is +29° 14’ 05” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current estimated magnitude of Comet 65P/Gunn is 19.21 (JPL).

Summary of key facts about Comet 65P/Gunn [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]:

07h 37m 25s
+29° 14’ 05”
  • 65P/Gunn is above the horizon from Greenwich, United Kingdom [change].
  • It is visible looking in the North-West direction at an altitude of 4° above the horizon.
  • Given its current magnitude, 65P/Gunn is visible only through long exposure photography.
  • See also 65P/Gunn 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 65P/Gunn available on TheSkyLive:

Available Resources

Comet 65P/Gunn Position and Finder Charts

Below we provide Comet 65P/Gunn 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 65P/Gunn in Gemini on December, 09 2021
Field of view: 50x30 degrees
View fullscreen
Map showing Comet 65P/Gunn in Gemini on December, 09 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 65P/Gunn is right now. Click on the image to see a more detailed fullscreen tracker view.

RA: 07h 37m 25s
Dec: +29° 14’ 05”
Deep sky finder chart for Comet 65P/Gunn
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet 65P/Gunn?, a page that provides all the information needed to find Comet 65P/Gunn in the sky and additional links to sky charts.

Comet 65P/Gunn Distance from Earth

The distance of Comet 65P/Gunn from Earth is currently 597,310,680 kilometers, equivalent to 3.992775 Astronomical Units. Light takes 33 minutes and 12.4140 seconds to travel from Comet 65P/Gunn and arrive to us.

33 minutes and 12.4140 seconds

The following chart shows the distance of Comet 65P/Gunn 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 65P/Gunn 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 65P/Gunn from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Comet 65P/Gunn to Earth

Between January 2013 and December 2100, the closest approach of Comet 65P/Gunn to Earth happens on Fri Jun 15 2040 at a distance of 1.678774 Astronomical Units, or 251,141,003 kilometers:

Fri Jun 15 2040

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

Comet 65P/Gunn brightness

The current visual magnitude of Comet 65P/Gunn is 19.21.


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 65P/Gunn, 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 65P/Gunn between January 2013 and December 2100

Comet 65P/Gunn 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 65P/Gunn rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 60.8°
Max altitude: 67.7°
Azimuth: 299.2°

The rise and set times are defined as the time at which the upper limb of Comet 65P/Gunn 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 65P/Gunn Orbital Elements

The following table lists the orbital elements of Comet 65P/Gunn at epoch 18 March 2017 00:00 UTC (JD: 2457831.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.25039088
Orbit inclination i 9.18413933°
Perihelion distance q 2.91026309 AU
435,369,162 km
Aphelion distance Q 4.85448521 AU
726,220,652 km
Semi-major axis a 3.88237415 AU
580,794,907 km
Orbital period period 7.6499 years
2,794.1165 days
Date of perihelion transit Tp 2017-Oct-16 12:22:51
2,458,043.0159 JD
Next perihelion transit 2025-Jun-10 15:10
2,460,837.1324 JD
Argument of perihelion peri 213.48106976049°
Longitude of the ascending node node 62.017373902391°
Mean anomaly M 332.74783747249°
Mean motion n 0.12884216°/day

Visualization of Comet 65P/Gunn Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet 65P/Gunn with respect of the Sun and the orbits of the major planets. The position of Comet 65P/Gunn 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 65P/Gunn 15 Days Ephemeris

The following table lists the ephemerides of Comet 65P/Gunn computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet 65P/Gunn in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2021 Dec 02 07h 40m 39s +28° 53’ 31” 19.25 Gemini
2021 Dec 03 07h 40m 15s +28° 56’ 16” 19.25 Gemini
2021 Dec 04 07h 39m 51s +28° 59’ 00” 19.24 Gemini
2021 Dec 05 07h 39m 26s +29° 01’ 45” 19.24 Gemini
2021 Dec 06 07h 39m 02s +29° 04’ 32” 19.23 Gemini
2021 Dec 07 07h 38m 35s +29° 07’ 18” 19.22 Gemini
2021 Dec 08 07h 38m 08s +29° 10’ 05” 19.22 Gemini
2021 Dec 09 07h 37m 39s +29° 12’ 51” 19.21 Gemini
2021 Dec 10 07h 37m 09s +29° 15’ 39” 19.21 Gemini
2021 Dec 11 07h 36m 39s +29° 18’ 27” 19.20 Gemini
2021 Dec 12 07h 36m 10s +29° 21’ 14” 19.20 Gemini
2021 Dec 13 07h 35m 38s +29° 24’ 02” 19.19 Gemini
2021 Dec 14 07h 35m 05s +29° 26’ 48” 19.19 Gemini
2021 Dec 15 07h 34m 32s +29° 29’ 35” 19.18 Gemini