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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 Cetus on April, 25 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]
02h 14m 17s
-18° 39’ 09”

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 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 Europe/London timezone.

Azimuth: 108.7°
Max altitude: 19.9°
Azimuth: 251.4°

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 Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2019 Apr 18 02h 07m 44s -18° 51’ 59” 30.96 Cetus
2019 Apr 19 02h 08m 36s -18° 50’ 03” 30.98 Cetus
2019 Apr 20 02h 09m 29s -18° 48’ 12” 31.00 Cetus
2019 Apr 21 02h 10m 20s -18° 46’ 24” 31.01 Cetus
2019 Apr 22 02h 11m 12s -18° 44’ 42” 31.03 Cetus
2019 Apr 23 02h 12m 06s -18° 43’ 03” 31.05 Cetus
2019 Apr 24 02h 12m 57s -18° 41’ 27” 31.06 Cetus
2019 Apr 25 02h 13m 50s -18° 39’ 56” 31.08 Cetus
2019 Apr 26 02h 14m 40s -18° 38’ 30” 31.09 Cetus
2019 Apr 27 02h 15m 33s -18° 37’ 08” 31.11 Cetus
2019 Apr 28 02h 16m 24s -18° 35’ 48” 31.13 Cetus
2019 Apr 29 02h 17m 17s -18° 34’ 35” 31.14 Cetus
2019 Apr 30 02h 18m 07s -18° 33’ 24” 31.16 Cetus
2019 May 01 02h 19m 00s -18° 32’ 20” 31.17 Cetus

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 2100

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 2100

Comet C/2017 P2 (PANSTARRS) Orbital Elements

The following table lists the orbital elements of Comet C/2017 P2 (PANSTARRS) at epoch 12 September 2017 00:00 UTC (JD: 2458009.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.99796740
Orbit inclination i 50.08485742°
Perihelion distance q 2.46177675 AU
368,276,561 km
Aphelion distance Q 2,419.83340848 AU
362,001,926,083 km
Semi-major axis a 1,211.14759262 AU
181,185,101,322 km
Orbital period period 42,150.6000 years
15,395,508.3029 days
Date of perihelion transit Tp 2017-Dec-06 13:31:38
2,458,094.0636 JD
Next perihelion transit 44169-May-26 20:47
17,853,602.3666 JD
Argument of perihelion peri 132.23879309009°
Longitude of the ascending node node 165.54636103642°
Mean anomaly M 359.99802261083°
Mean motion n 0.00002338°/day
Closest approach to Earth* 2017-Jul-19
Distance of closest approach* 2.59851737 AU
388,732,666 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.