Comet C/2017 S3 (PANSTARRS)
Comet C/2017 S3 (PANSTARRS) Sky Charts and Coordinates
This is a simplified sky chart, showing where Comet C/2017 S3 (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.
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 S3 (PANSTARRS) Rise and Set Times
Comet C/2017 S3 (PANSTARRS) is circumpolar from Greenwich, United Kingdom [change] and transits at 21:26 UTC (altitude: 78.1°)
Comet C/2017 S3 (PANSTARRS) Orbit Diagram
This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet C/2017 S3 (PANSTARRS) with respect of the Sun and the orbits of the major planets. The position of Comet C/2017 S3 (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!
Comet C/2017 S3 (PANSTARRS) Ephemeris
The following table lists the ephemerides of Comet C/2017 S3 (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 S3 (PANSTARRS) in our Online Planetarium at the chosen date.
|2019 Apr 19||11h 56m 09s||+63° 58’ 13”||24.81||Ursa Major|
|2019 Apr 20||11h 54m 33s||+63° 53’ 57”||24.83||Ursa Major|
|2019 Apr 21||11h 52m 59s||+63° 49’ 27”||24.86||Ursa Major|
|2019 Apr 22||11h 51m 28s||+63° 44’ 43”||24.89||Ursa Major|
|2019 Apr 23||11h 49m 59s||+63° 39’ 46”||24.92||Ursa Major|
|2019 Apr 24||11h 48m 33s||+63° 34’ 36”||24.95||Ursa Major|
|2019 Apr 25||11h 47m 11s||+63° 29’ 13”||24.98||Ursa Major|
|2019 Apr 26||11h 45m 50s||+63° 23’ 39”||25.01||Ursa Major|
|2019 Apr 27||11h 44m 31s||+63° 17’ 54”||25.04||Ursa Major|
|2019 Apr 28||11h 43m 17s||+63° 12’ 00”||25.06||Ursa Major|
|2019 Apr 29||11h 42m 05s||+63° 05’ 53”||25.09||Ursa Major|
|2019 Apr 30||11h 40m 54s||+62° 59’ 38”||25.12||Ursa Major|
|2019 May 01||11h 39m 47s||+62° 53’ 12”||25.15||Ursa Major|
|2019 May 02||11h 38m 43s||+62° 46’ 39”||25.18||Ursa Major|
Distance of Comet C/2017 S3 (PANSTARRS) from Earth
The following chart shows the distance of Comet C/2017 S3 (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 S3 (PANSTARRS) is also available as a real time updated value in the Live Position and Data Tracker.
Light Curve of Comet C/2017 S3 (PANSTARRS)
The following chart is the predicted light curve (visual magnitude as a function of time) of Comet C/2017 S3 (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.
Comet C/2017 S3 (PANSTARRS) Orbital Elements
The following table lists the orbital elements of Comet C/2017 S3 (PANSTARRS) at epoch 27 April 2018 00:00 UTC (JD: 2458236.5). Source: JPL Small-Body Database
|Perihelion distance||q||0.20844567 AU
|Date of perihelion transit||Tp||2018-Aug-15 22:45:44
|Argument of perihelion||peri||255.89232457393°|
|Longitude of the ascending node||node||171.04267353551°|
|Closest approach to Earth*||2018-Aug-07|
|Distance of closest approach*||0.75800580 AU
* 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.