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Comet C/2017 T2 (PANSTARRS)

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Comet C/2017 T2 (PANSTARRS) Position

Comet C/2017 T2 (PANSTARRS) is currently in the constellation of Taurus. The current Right Ascension is 05h 13m 23s and the Declination is +21° 37’ 04”.

05h 13m 23s
+21° 37’ 04”

Simplified sky chart showing where Comet C/2017 T2 (PANSTARRS) is right now in the sky with respect to the brightest stars and constellations (see fuillscreen Online Planetarium)

Map showing Comet C/2017 T2 (PANSTARRS) in Taurus on August, 23 2019
Field of view: 60x30 degrees
View fullscreen
 = visible to the naked eye
 = binocular, brighter than 10th magnitude
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]

Hihgher precision deep sky finder chart showing where Comet C/2017 T2 (PANSTARRS) is right now (view fullscreen)

RA: 05h 13m 23s
Dec: +21° 37’ 04”
Deep sky finder chart for Comet C/2017 T2 (PANSTARRS)
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet C/2017 T2 (PANSTARRS)?, a page that provides all the information needed to find Comet C/2017 T2 (PANSTARRS) in the sky and additional links to sky charts.

Comet C/2017 T2 (PANSTARRS) Distance

The distance of Comet C/2017 T2 (PANSTARRS) from Earth is currently 556,771,682 kilometers, equivalent to 3.721789 Astronomical Units. Light takes 30 minutes and 57.1904 seconds to travel from Comet C/2017 T2 (PANSTARRS) and arrive to us.

30 minutes and 57.1904 seconds

The following chart shows the distance of Comet C/2017 T2 (PANSTARRS) from Earth as a function of time. In the chart the distance data is measured in Astronomical Units and sampled with an interval of 1 day.

Distance of Comet C/2017 T2 (PANSTARRS) from Earth between January 2013 and December 2100

The value of the reported distance might be somewhat inaccurate around the times of closest approach for objects passing extremely close to Earth. The value of the distance of C/2017 T2 (PANSTARRS) from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Comet C/2017 T2 (PANSTARRS) to Earth

Between January 2013 and December 2100 the closest approach of Comet C/2017 T2 (PANSTARRS) to Earth happens on Sun Dec 29 2019 at a distance of 1.52024859 Astronomical Units, or 227,425,952 kilometers:

Sun Dec 29 2019

NOTE: values for the closest approach are computed with a sampling interval of 1 day.

Comet C/2017 T2 (PANSTARRS) brightness

The current visual magnitude of Comet C/2017 T2 (PANSTARRS) is 13.22.


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.

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 2100

Comet C/2017 T2 (PANSTARRS) rise and set times

Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

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

Azimuth: 68.3°
Max altitude: 60.1°
Azimuth: 291.6°
Comet C/2017 T2 (PANSTARRS) is above the horizon from Greenwich, United Kingdom

The rise and set times are defined as the time at which the upper limb of Comet C/2017 T2 (PANSTARRS) touches the horizon, consideting the effect of the atmospheric refraction. As the atmoshpere conditions cannot be modeled precisely the times reported here should be considered correct with an approximation of few minutes.

Comet C/2017 T2 (PANSTARRS) Orbital Elements

The following table lists the orbital elements of Comet C/2017 T2 (PANSTARRS) at epoch 04 October 2018 00:00 UTC (JD: 2458396.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.99987073
Orbit inclination i 57.23690101°
Perihelion distance q 1.61445849 AU
241,519,553 km
Aphelion distance Q 24,975.83754994 AU
3,736,332,123,913 km
Semi-major axis a 12,488.72600421 AU
1,868,286,821,733 km
Orbital period period 1,395,678.5600 years
509,771,595.8131 days
Date of perihelion transit Tp 2020-May-04 21:24:49
2,458,974.3922 JD
Argument of perihelion peri 93.004229422727°
Longitude of the ascending node node 64.378009672186°
Mean anomaly M 359.9995918933°
Mean motion n 0.00000071°/day

Visualization of Comet C/2017 T2 (PANSTARRS) Orbit

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) 15 Days 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
2019 Aug 16 05h 07m 14s +20° 42’ 14” 13.41 Taurus
2019 Aug 17 05h 08m 03s +20° 49’ 17” 13.39 Taurus
2019 Aug 18 05h 08m 53s +20° 56’ 21” 13.36 Taurus
2019 Aug 19 05h 09m 42s +21° 03’ 29” 13.34 Taurus
2019 Aug 20 05h 10m 31s +21° 10’ 41” 13.31 Taurus
2019 Aug 21 05h 11m 18s +21° 17’ 56” 13.29 Taurus
2019 Aug 22 05h 12m 06s +21° 25’ 14” 13.26 Taurus
2019 Aug 23 05h 12m 55s +21° 32’ 35” 13.24 Taurus
2019 Aug 24 05h 13m 41s +21° 40’ 00” 13.21 Taurus
2019 Aug 25 05h 14m 29s +21° 47’ 29” 13.18 Taurus
2019 Aug 26 05h 15m 15s +21° 55’ 00” 13.16 Taurus
2019 Aug 27 05h 16m 01s +22° 02’ 36” 13.13 Taurus
2019 Aug 28 05h 16m 48s +22° 10’ 18” 13.10 Taurus
2019 Aug 29 05h 17m 34s +22° 18’ 02” 13.08 Taurus