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Comet C/2017 T2 (PANSTARRS)

Available Resources

Comet C/2017 T2 (PANSTARRS) Sky Charts and Coordinates

This is a simplified sky chart, showing where Comet C/2017 T2 (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 T2 (PANSTARRS) in Eridanus on December, 15 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]
03h 15m 36s
-05° 17’ 27”

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 T2 (PANSTARRS) Rise and Set Times

Today's Comet C/2017 T2 (PANSTARRS) rise, transit and set times from Greenwich, United Kingdom [change]. All times are relative to the Europe/London timezone.

Azimuth: 95.3°
Max altitude: 33.3°
Azimuth: 264.7°

Comet C/2017 T2 (PANSTARRS) Orbit Diagram

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet C/2017 T2 (PANSTARRS) with respect of the Sun and the orbits of the major planets. The position of Comet C/2017 T2 (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 T2 (PANSTARRS)
View Comet C/2017 T2 (PANSTARRS) in the 3D Solar System Simulator

Comet C/2017 T2 (PANSTARRS) Ephemeris

The following table lists the ephemerides of Comet C/2017 T2 (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 T2 (PANSTARRS) in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2018 Dec 08 03h 20m 04s -05° 36’ 15” 16.20 Eridanus
2018 Dec 09 03h 19m 26s -05° 33’ 56” 16.19 Eridanus
2018 Dec 10 03h 18m 47s -05° 31’ 30” 16.19 Eridanus
2018 Dec 11 03h 18m 10s -05° 28’ 59” 16.18 Eridanus
2018 Dec 12 03h 17m 31s -05° 26’ 21” 16.17 Eridanus
2018 Dec 13 03h 16m 54s -05° 23’ 38” 16.17 Eridanus
2018 Dec 14 03h 16m 18s -05° 20’ 48” 16.16 Eridanus
2018 Dec 15 03h 15m 42s -05° 17’ 53” 16.15 Eridanus
2018 Dec 16 03h 15m 06s -05° 14’ 53” 16.15 Eridanus
2018 Dec 17 03h 14m 30s -05° 11’ 45” 16.14 Eridanus
2018 Dec 18 03h 13m 55s -05° 08’ 34” 16.14 Eridanus
2018 Dec 19 03h 13m 21s -05° 05’ 15” 16.13 Eridanus
2018 Dec 20 03h 12m 47s -05° 01’ 51” 16.13 Eridanus
2018 Dec 21 03h 12m 14s -04° 58’ 22” 16.12 Eridanus

Distance of Comet C/2017 T2 (PANSTARRS) from Earth

The following chart shows the distance of Comet C/2017 T2 (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 T2 (PANSTARRS) is also available as a real time updated value in the Live Position and Data Tracker.

Distance of Comet C/2017 T2 (PANSTARRS) from Earth between January 2013 and December 2075

Light Curve of Comet C/2017 T2 (PANSTARRS)

The following chart is the predicted light curve (visual magnitude as a function of time) of Comet C/2017 T2 (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 T2 (PANSTARRS) between January 2013 and December 2075

Comet C/2017 T2 (PANSTARRS) Orbital Elements

The following table lists the orbital elements of Comet C/2017 T2 (PANSTARRS) at epoch 20 March 2018 00:00 UTC (JD: 2458198.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.99993136
Orbit inclination i 57.23394757°
Perihelion distance q 1.61378471 AU
241,418,757 km
Aphelion distance Q 47,021.95374514 AU
7,034,384,170,533 km
Semi-major axis a 23,511.78376492 AU
3,517,312,794,645 km
Orbital period period 3,605,259.8400 years
1,316,821,155.9361 days
Date of perihelion transit Tp 2020-May-04 19:24:23
2,458,974.3086 JD
Argument of perihelion peri 93.012762137567°
Longitude of the ascending node node 64.380294339089°
Mean anomaly M 359.99978790506°
Mean motion n 0.00000027°/day
Closest approach to Earth* 2019-Dec-29
Distance of closest approach* 1.52040201 AU
227,448,904 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.