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Comet C/2017 P2 (PANSTARRS)

Available Resources

Comet C/2017 P2 (PANSTARRS) Sky Charts and Coordinates

This is a simplified sky chart, showing where Comet C/2017 P2 (PANSTARRS) 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 C/2017 P2 (PANSTARRS) in Aquarius on January, 22 2018
High Precision Live Sky Chart
20h 59m 21s
+00° 49’ 28”
 = visible to the naked eye
 = binocular, brighter than 10th magnitude
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]

Comet C/2017 P2 (PANSTARRS) Rise and Set Times

Today's Comet C/2017 P2 (PANSTARRS) rise, transit and set times from Greenwich, United Kingdom [change]. All times are relative to the local timezone Europe/London.

Azimuth: 89.2°
Max altitude: 39.3°
Azimuth: 270.8°

Comet C/2017 P2 (PANSTARRS) Orbit Diagram

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet C/2017 P2 (PANSTARRS) with respect of the Sun and the orbits of the major planets. The position of Comet C/2017 P2 (PANSTARRS) 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 C/2017 P2 (PANSTARRS)
View Comet C/2017 P2 (PANSTARRS) in the 3D Solar System Simulator

Comet C/2017 P2 (PANSTARRS) Ephemeris

The following table lists the ephemerides of Comet C/2017 P2 (PANSTARRS) computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet C/2017 P2 (PANSTARRS) in our Online Planetarium at the chosen date.

Date MagnitudeMag Right AscensionR.A. DeclinationDec. Constellation
2018 Jan 15 21.26 20h 44m 54s +01° 12’ 32” Aquarius
2018 Jan 16 21.27 20h 46m 59s +01° 08’ 53” Aquarius
2018 Jan 17 21.29 20h 49m 04s +01° 05’ 21” Aquarius
2018 Jan 18 21.30 20h 51m 07s +01° 01’ 56” Aquarius
2018 Jan 19 21.31 20h 53m 12s +00° 58’ 40” Aquarius
2018 Jan 20 21.33 20h 55m 14s +00° 55’ 28” Aquarius
2018 Jan 21 21.34 20h 57m 17s +00° 52’ 26” Aquarius
2018 Jan 22 21.36 20h 59m 21s +00° 49’ 28” Aquarius
2018 Jan 23 21.37 21h 01m 23s +00° 46’ 38” Aquarius
2018 Jan 24 21.39 21h 03m 25s +00° 43’ 54” Aquarius
2018 Jan 25 21.40 21h 05m 27s +00° 41’ 17” Aquarius
2018 Jan 26 21.42 21h 07m 29s +00° 38’ 45” Aquarius
2018 Jan 27 21.43 21h 09m 30s +00° 36’ 20” Aquarius
2018 Jan 28 21.45 21h 11m 31s +00° 34’ 03” Aquarius

Distance of Comet C/2017 P2 (PANSTARRS) from Earth

The following chart shows the distance of Comet C/2017 P2 (PANSTARRS) 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 C/2017 P2 (PANSTARRS) is also available as a real time updated value in the Live Position and Data Tracker.

Distance of Comet C/2017 P2 (PANSTARRS) from Earth between January 2013 and December 2075

Light Curve of Comet C/2017 P2 (PANSTARRS)

The following chart is the predicted light curve (visual magnitude as a function of time) of Comet C/2017 P2 (PANSTARRS), 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 C/2017 P2 (PANSTARRS) between January 2013 and December 2075

Comet C/2017 P2 (PANSTARRS) Orbital Elements

The following table lists the orbital elements of Comet C/2017 P2 (PANSTARRS) at epoch 01 September 2017 00:00 UTC (JD: 2457998.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.99802844
Orbit inclination i 50.08493456°
Perihelion distance q 2.46180680 AU
368,281,057 km
Aphelion distance Q 2,494.85873811 AU
373,225,555,668 km
Semi-major axis a 1,248.66027246 AU
186,796,918,362 km
Orbital period period 44,123.9800 years
16,116,282.3869 days
Date of perihelion transit Tp 2017-Dec-06 13:26:51
2,458,094.0603 JD
Next perihelion transit 46142-Oct-24 22:43
18,574,376.4472 JD
Argument of perihelion peri 132.2377076654°
Longitude of the ascending node node 165.54593798376°
Mean anomaly M 359.99786540623°
Mean motion n 0.00002234°/day
Closest approach to Earth* 2017-Jul-19
Distance of closest approach* 2.59854899 AU
388,737,397 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.