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Comet 64P/Swift-Gehrels

Available Resources

Comet 64P/Swift-Gehrels Sky Charts and Coordinates

This is a simplified sky chart, showing where Comet 64P/Swift-Gehrels 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 64P/Swift-Gehrels in Triangulum on December, 12 2018
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]
02h 09m 52s
+32° 45’ 58”

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 64P/Swift-Gehrels Rise and Set Times

Today's Comet 64P/Swift-Gehrels rise, transit and set times from Greenwich, United Kingdom [change]. All times are relative to the Europe/London timezone.

Azimuth: 57.2°
Max altitude: 71.2°
Azimuth: 302.8°

Comet 64P/Swift-Gehrels Orbit Diagram

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet 64P/Swift-Gehrels with respect of the Sun and the orbits of the major planets. The position of Comet 64P/Swift-Gehrels 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 64P/Swift-Gehrels
View Comet 64P/Swift-Gehrels in the 3D Solar System Simulator

Comet 64P/Swift-Gehrels Ephemeris

The following table lists the ephemerides of Comet 64P/Swift-Gehrels computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet 64P/Swift-Gehrels in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2018 Dec 05 01h 51m 43s +33° 57’ 24” 14.53 Triangulum
2018 Dec 06 01h 54m 06s +33° 48’ 03” 14.56 Triangulum
2018 Dec 07 01h 56m 29s +33° 38’ 39” 14.59 Triangulum
2018 Dec 08 01h 58m 51s +33° 29’ 13” 14.62 Triangulum
2018 Dec 09 02h 01m 15s +33° 19’ 45” 14.65 Triangulum
2018 Dec 10 02h 03m 41s +33° 10’ 14” 14.68 Triangulum
2018 Dec 11 02h 06m 06s +33° 00’ 43” 14.71 Triangulum
2018 Dec 12 02h 08m 31s +32° 51’ 12” 14.74 Triangulum
2018 Dec 13 02h 10m 58s +32° 41’ 43” 14.77 Triangulum
2018 Dec 14 02h 13m 23s +32° 32’ 13” 14.81 Triangulum
2018 Dec 15 02h 15m 51s +32° 22’ 46” 14.84 Triangulum
2018 Dec 16 02h 18m 18s +32° 13’ 23” 14.87 Triangulum
2018 Dec 17 02h 20m 44s +32° 04’ 01” 14.91 Triangulum
2018 Dec 18 02h 23m 12s +31° 54’ 43” 14.94 Triangulum

Distance of Comet 64P/Swift-Gehrels from Earth

The following chart shows the distance of Comet 64P/Swift-Gehrels 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 64P/Swift-Gehrels is also available as a real time updated value in the Live Position and Data Tracker.

Distance of Comet 64P/Swift-Gehrels from Earth between January 2013 and December 2075

Light Curve of Comet 64P/Swift-Gehrels

The following chart is the predicted light curve (visual magnitude as a function of time) of Comet 64P/Swift-Gehrels, 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 64P/Swift-Gehrels between January 2013 and December 2075

Comet 64P/Swift-Gehrels Orbital Elements

The following table lists the orbital elements of Comet 64P/Swift-Gehrels at epoch 10 August 2016 00:00 UTC (JD: 2457611.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.68715302
Orbit inclination i 8.94525258°
Perihelion distance q 1.39351264 AU
208,466,524 km
Aphelion distance Q 7.51507682 AU
1,124,239,492 km
Semi-major axis a 4.45429473 AU
666,353,008 km
Orbital period period 9.4000 years
3,433.7356 days
Date of perihelion transit Tp 2018-Nov-04 01:53:17
2,458,426.5787 JD
Next perihelion transit 2028-Mar-29 19:32
2,461,860.3143 JD
Argument of perihelion peri 97.139015996931°
Longitude of the ascending node node 300.01894402183°
Mean anomaly M 274.54545276442°
Mean motion n 0.10484209°/day
Closest approach to Earth* 2018-Oct-28
Distance of closest approach* 0.44480495 AU
66,541,874 km

* NOTE: values for the closest approach are computed for the time interval between 2013-Jan-01 and 2075-Dec-31, with a sampling interval of 1 day.