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Comet C/2017 S6 (Catalina)

Available Resources

Comet C/2017 S6 (Catalina) Sky Charts and Coordinates

This is a simplified sky chart, showing where Comet C/2017 S6 (Catalina) 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 S6 (Catalina) in Pisces on February, 24 2018
High Precision Live Sky Chart
22h 52m 59s
+06° 03’ 37”
 = visible to the naked eye
 = binocular, brighter than 10th magnitude
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]

Comet C/2017 S6 (Catalina) Rise and Set Times

Today's Comet C/2017 S6 (Catalina) rise, transit and set times from Greenwich, United Kingdom [change]. All times are relative to the local timezone Europe/London.

Azimuth: 83.9°
Max altitude: 44.6°
Azimuth: 276.1°

Comet C/2017 S6 (Catalina) Orbit Diagram

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet C/2017 S6 (Catalina) with respect of the Sun and the orbits of the major planets. The position of Comet C/2017 S6 (Catalina) 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 S6 (Catalina)
View Comet C/2017 S6 (Catalina) in the 3D Solar System Simulator

Comet C/2017 S6 (Catalina) Ephemeris

The following table lists the ephemerides of Comet C/2017 S6 (Catalina) 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 S6 (Catalina) in our Online Planetarium at the chosen date.

Date MagnitudeMag Right AscensionR.A. DeclinationDec. Constellation
2018 Feb 17 16.77 22h 51m 42s +07° 21’ 29” Pisces
2018 Feb 18 16.77 22h 51m 53s +07° 09’ 51” Pisces
2018 Feb 19 16.78 22h 52m 05s +06° 58’ 23” Pisces
2018 Feb 20 16.78 22h 52m 14s +06° 47’ 06” Pisces
2018 Feb 21 16.78 22h 52m 26s +06° 35’ 59” Pisces
2018 Feb 22 16.79 22h 52m 36s +06° 25’ 03” Pisces
2018 Feb 23 16.79 22h 52m 49s +06° 14’ 16” Pisces
2018 Feb 24 16.80 22h 52m 59s +06° 03’ 37” Pisces
2018 Feb 25 16.80 22h 53m 11s +05° 53’ 07” Pisces
2018 Feb 26 16.81 22h 53m 21s +05° 42’ 45” Pisces
2018 Feb 27 16.81 22h 53m 34s +05° 32’ 30” Pisces
2018 Feb 28 16.82 22h 53m 44s +05° 22’ 23” Pisces
2018 Mar 01 16.82 22h 53m 57s +05° 12’ 23” Pisces
2018 Mar 02 16.83 22h 54m 07s +05° 02’ 29” Pisces

Distance of Comet C/2017 S6 (Catalina) from Earth

The following chart shows the distance of Comet C/2017 S6 (Catalina) 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 S6 (Catalina) is also available as a real time updated value in the Live Position and Data Tracker.

Distance of Comet C/2017 S6 (Catalina) from Earth between January 2013 and December 2075

Light Curve of Comet C/2017 S6 (Catalina)

The following chart is the predicted light curve (visual magnitude as a function of time) of Comet C/2017 S6 (Catalina), 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 S6 (Catalina) between January 2013 and December 2075

Comet C/2017 S6 (Catalina) Orbital Elements

The following table lists the orbital elements of Comet C/2017 S6 (Catalina) at epoch 15 November 2017 00:00 UTC (JD: 2458073.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 1.00140344
Orbit inclination i 152.82682742°
Perihelion distance q 1.54292517 AU
230,818,321 km
Aphelion distance Q n.a.
Semi-major axis a n.a.
Orbital period period n.a.
Date of perihelion transit Tp 2018-Feb-26 22:23:25
2,458,176.4329 JD
Argument of perihelion peri 134.68572368315°
Longitude of the ascending node node 130.87309250239°
Mean anomaly M -0.0027831286278282°
Mean motion n 0.00002704°/day
Closest approach to Earth* 2017-Nov-27
Distance of closest approach* 1.21168069 AU
181,264,851 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.