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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 Pegasus on August, 20 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]
00h 09m 45s
+15° 58’ 10”

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 local timezone Europe/London.

Azimuth: 74.0°
Max altitude: 54.5°
Azimuth: 286.0°

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 Aug 13 00h 04m 03s +13° 23’ 52” 12.87 Pegasus
2018 Aug 14 00h 04m 53s +13° 45’ 02” 12.81 Pegasus
2018 Aug 15 00h 05m 43s +14° 06’ 20” 12.74 Pegasus
2018 Aug 16 00h 06m 32s +14° 27’ 47” 12.68 Pegasus
2018 Aug 17 00h 07m 19s +14° 49’ 23” 12.62 Pegasus
2018 Aug 18 00h 08m 07s +15° 11’ 04” 12.56 Pegasus
2018 Aug 19 00h 08m 53s +15° 32’ 56” 12.50 Pegasus
2018 Aug 20 00h 09m 38s +15° 54’ 53” 12.43 Pegasus
2018 Aug 21 00h 10m 23s +16° 16’ 59” 12.37 Pegasus
2018 Aug 22 00h 11m 07s +16° 39’ 14” 12.31 Pegasus
2018 Aug 23 00h 11m 49s +17° 01’ 33” 12.25 Pegasus
2018 Aug 24 00h 12m 32s +17° 24’ 01” 12.19 Pegasus
2018 Aug 25 00h 13m 13s +17° 46’ 35” 12.13 Pegasus
2018 Aug 26 00h 13m 53s +18° 09’ 15” 12.07 Pegasus

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 15 August 2009 00:00 UTC (JD: 2455059.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.68958730
Orbit inclination i 8.95129505°
Perihelion distance q 1.37699968 AU
205,996,221 km
Aphelion distance Q 7.49505793 AU
1,121,244,710 km
Semi-major axis a 4.43602881 AU
663,620,466 km
Orbital period period 9.3400 years
3,412.6360 days
Date of perihelion transit Tp 2009-Jun-14 08:30:22
2,454,996.8544 JD
Next perihelion transit 2018-Oct-17 23:46
2,458,409.4904 JD
Argument of perihelion peri 96.305172296832°
Longitude of the ascending node node 300.74400994137°
Mean anomaly M 6.6085003743925°
Mean motion n 0.10549030°/day
Closest approach to Earth* 2018-Oct-28
Distance of closest approach* 0.44482046 AU
66,544,194 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.