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Comet 65P/Gunn

Available Resources

Comet 65P/Gunn Sky Charts and Coordinates

This is a simplified sky chart, showing where Comet 65P/Gunn is now with respect to the brightest stars and constellations.

More advanced sky charts are available on TheSkyLive for this object: 1) the Online Planetarium which is interactive and allows to select dates and additional objects to visualize; and 2) the Live Position and Data Tracker which provides the highest precision position data and features deep sky imagery from the Digitized Sky Survey.

Comet 65P/Gunn in Pisces on April, 24 2019
High Precision Live Sky Chart
 = visible to the naked eye
 = binocular, brighter than 10th magnitude
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]
01h 21m 58s
+02° 57’ 41”
-
18.62
-

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.

Comet 65P/Gunn Rise and Set Times

Today's Comet 65P/Gunn rise, transit and set times from Greenwich, United Kingdom [change]. All times are relative to the Europe/London timezone.

Azimuth: 87.1°
Max altitude: 41.4°
Azimuth: 273.0°

Comet 65P/Gunn Orbit Diagram

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 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
2019 Apr 17 01h 13m 18s +02° 00’ 55” 18.61 Cetus
2019 Apr 18 01h 14m 26s +02° 08’ 18” 18.61 Cetus
2019 Apr 19 01h 15m 33s +02° 15’ 42” 18.61 Cetus
2019 Apr 20 01h 16m 40s +02° 23’ 02” 18.61 Cetus
2019 Apr 21 01h 17m 47s +02° 30’ 20” 18.61 Cetus
2019 Apr 22 01h 18m 53s +02° 37’ 36” 18.62 Cetus
2019 Apr 23 01h 19m 59s +02° 44’ 51” 18.62 Pisces
2019 Apr 24 01h 21m 06s +02° 52’ 03” 18.62 Pisces
2019 Apr 25 01h 22m 13s +02° 59’ 12” 18.62 Pisces
2019 Apr 26 01h 23m 18s +03° 06’ 20” 18.62 Pisces
2019 Apr 27 01h 24m 25s +03° 13’ 26” 18.63 Pisces
2019 Apr 28 01h 25m 32s +03° 20’ 30” 18.63 Pisces
2019 Apr 29 01h 26m 38s +03° 27’ 30” 18.63 Pisces
2019 Apr 30 01h 27m 42s +03° 34’ 28” 18.63 Pisces

Distance of Comet 65P/Gunn from Earth

The following chart shows the distance of Comet 65P/Gunn from Earth as a function of time. Distance data is measured in Astronomical Units and sampled with a 2 days interval.

The reported distances might be inaccurate around the times of closest approach for objects passing extremely close to Earth. The value of the distance of 65P/Gunn is also available as a real time updated value in the Live Position and Data Tracker.

Distance of Comet 65P/Gunn from Earth between January 2013 and December 2100

Light Curve of Comet 65P/Gunn

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 Orbital Elements

The following table lists the orbital elements of Comet 65P/Gunn at epoch 21 November 2016 00:00 UTC (JD: 2457714.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.25080952
Orbit inclination i 9.18134633°
Perihelion distance q 2.91055174 AU
435,412,343 km
Aphelion distance Q 4.85930603 AU
726,941,837 km
Semi-major axis a 3.88492888 AU
581,177,090 km
Orbital period period 7.6600 years
2,796.8749 days
Date of perihelion transit Tp 2017-Oct-16 03:14:14
2,458,042.6349 JD
Next perihelion transit 2025-Jun-13 00:14
2,460,839.5098 JD
Argument of perihelion peri 213.39950415537°
Longitude of the ascending node node 62.025455636753°
Mean anomaly M 317.76408827168°
Mean motion n 0.12871509°/day
Closest approach to Earth* 2040-Jun-15
Distance of closest approach* 1.67863036 AU
251,119,528 km

* NOTE: values for the closest approach are computed for the time interval between 2013-Jan-01 and 2100-Dec-31, with a sampling interval of 1 day.