Comet C/2017 S3 (PANSTARRS)
Comet C/2017 S3 (PANSTARRS) is currently in the constellation of Ursa Major. The current Right Ascension of Comet C/2017 S3 (PANSTARRS) is 12h 26m 27s and the Declination is +56° 02’ 31” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current estimated magnitude of Comet C/2017 S3 (PANSTARRS) is 31.00 (JPL).
Summary of key facts about Comet C/2017 S3 (PANSTARRS) [tip: you can also create a Quick Access page for this data if you access it frequently and would like to have a simpler view]:
- C/2017 S3 (PANSTARRS) is above the horizon from Greenwich, United Kingdom [change].
- It is visible looking in the West-North-West direction at an altitude of 54° above the horizon.
- Given its current magnitude, C/2017 S3 (PANSTARRS) is visible only through long exposure photography.
- See also C/2017 S3 (PANSTARRS) rise and set times.
- Go to interactive sky chart
If you need to access this information frequently for your observations, you can create a simple customized Quick Access page, so that you can easily bookmark it in your browser favorites or add a shortcut to your mobile phones' home screen.
Additional information about Comet C/2017 S3 (PANSTARRS) available on TheSkyLive:
Comet C/2017 S3 (PANSTARRS) Position and Finder Charts
Below we provide Comet C/2017 S3 (PANSTARRS) finder charts showing where the object is right now in the sky with respect to the brightest stars. The first finder chart has a field of view of 50 degrees, while the second one has a field of view of 10 degrees. Click on each finder chart to access a full screen interactive Online Planetarium.
Higher precision deep sky finder chart, 60 arcmin wide, showing where Comet C/2017 S3 (PANSTARRS) is right now. Click on the image to see a more detailed fullscreen tracker view.
Also check out Where is Comet C/2017 S3 (PANSTARRS)?, a page that provides all the information needed to find Comet C/2017 S3 (PANSTARRS) in the sky and additional links to sky charts.
Comet C/2017 S3 (PANSTARRS) Distance from Earth
The distance of Comet C/2017 S3 (PANSTARRS) from Earth is currently 1,386,808,618 kilometers, equivalent to 9.270243 Astronomical Units. Light takes 1 hours, 17 minutes and 5.8956 seconds to travel from Comet C/2017 S3 (PANSTARRS) and arrive to us.
The following chart shows the distance of Comet C/2017 S3 (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.
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 S3 (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 S3 (PANSTARRS) to Earth
Between January 2013 and December 2100 the closest approach of Comet C/2017 S3 (PANSTARRS) to Earth happens on Tue Aug 7 2018 at a distance of 0.75800575 Astronomical Units, or 113,396,047 kilometers:
NOTE: values for the closest approach are computed with a sampling interval of 1 day.
Comet C/2017 S3 (PANSTARRS) brightness
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 behavior 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 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) rise and set times
Comet C/2017 S3 (PANSTARRS) is circumpolar and transits at 15:00 UTC (altitude: 85.4°)
The rise and set times are defined as the time at which the upper limb of Comet C/2017 S3 (PANSTARRS) touches the horizon, considering the effect of the atmospheric refraction. As the atmospheric conditions cannot be modeled precisely the times reported here should be considered correct with an approximation of few minutes.
Comet C/2017 S3 (PANSTARRS) Orbital Elements
|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°|
Visualization of Comet C/2017 S3 (PANSTARRS) Orbit
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) 15 Days 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.
|2020 Aug 05||12h 22m 32s||+56° 36’ 37”||31.00||Ursa Major|
|2020 Aug 06||12h 23m 02s||+56° 32’ 04”||31.00||Ursa Major|
|2020 Aug 07||12h 23m 30s||+56° 27’ 37”||31.00||Ursa Major|
|2020 Aug 08||12h 24m 01s||+56° 23’ 11”||31.00||Ursa Major|
|2020 Aug 09||12h 24m 30s||+56° 18’ 47”||31.00||Ursa Major|
|2020 Aug 10||12h 25m 00s||+56° 14’ 26”||31.00||Ursa Major|
|2020 Aug 11||12h 25m 32s||+56° 10’ 08”||31.00||Ursa Major|
|2020 Aug 12||12h 26m 03s||+56° 05’ 53”||31.00||Ursa Major|
|2020 Aug 13||12h 26m 34s||+56° 01’ 41”||31.00||Ursa Major|
|2020 Aug 14||12h 27m 06s||+55° 57’ 30”||31.00||Ursa Major|
|2020 Aug 15||12h 27m 38s||+55° 53’ 24”||31.00||Ursa Major|
|2020 Aug 16||12h 28m 09s||+55° 49’ 19”||31.00||Ursa Major|
|2020 Aug 17||12h 28m 42s||+55° 45’ 19”||31.00||Ursa Major|
|2020 Aug 18||12h 29m 15s||+55° 41’ 21”||31.00||Ursa Major|