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Comet C/2017 S6 (Catalina)

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Comet C/2017 S6 (Catalina) Position

Comet C/2017 S6 (Catalina) is currently in the constellation of Lupus. The current Right Ascension is 14h 53m 08s and the Declination is -47° 25’ 16”.

14h 53m 08s
-47° 25’ 16”

Simplified sky chart showing where Comet C/2017 S6 (Catalina) is right now in the sky with respect to the brightest stars and constellations (see full screen Online Planetarium)

Map showing Comet C/2017 S6 (Catalina) in Lupus on March, 28 2020
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]

Higher precision deep sky finder chart showing where Comet C/2017 S6 (Catalina) is right now (view fullscreen)

C/2017 S6 (Catalina)
RA: 14h 53m 08s
Dec: -47° 25’ 16”
Deep sky finder chart for Comet C/2017 S6 (Catalina)
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet C/2017 S6 (Catalina)?, a page that provides all the information needed to find Comet C/2017 S6 (Catalina) in the sky and additional links to sky charts.

Comet C/2017 S6 (Catalina) Distance

The distance of Comet C/2017 S6 (Catalina) from Earth is currently 1,090,591,470 kilometers, equivalent to 7.290154 Astronomical Units. Light takes 1 hours, 37.8216 seconds to travel from Comet C/2017 S6 (Catalina) and arrive to us.

1 hours, 37.8216 seconds

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

Closest approach of Comet C/2017 S6 (Catalina) to Earth

Between January 2013 and December 2100 the closest approach of Comet C/2017 S6 (Catalina) to Earth happens on Mon Nov 27 2017 at a distance of 1.21167826 Astronomical Units, or 181,264,487 kilometers:

Mon Nov 27 2017

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

Comet C/2017 S6 (Catalina) brightness

The current visual magnitude of Comet C/2017 S6 (Catalina) is 29.10.


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 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 2100

Comet C/2017 S6 (Catalina) rise and set times

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

Comet C/2017 S6 (Catalina) is currently not visible from Greenwich, United Kingdom [change]

The rise and set times are defined as the time at which the upper limb of Comet C/2017 S6 (Catalina) 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 S6 (Catalina) Orbital Elements

The following table lists the orbital elements of Comet C/2017 S6 (Catalina) at epoch 16 November 2017 00:00 UTC (JD: 2458074.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 1.00138681
Orbit inclination i 152.82685230°
Perihelion distance q 1.54291924 AU
230,817,433 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 22:24:46
2,458,176.4339 JD
Argument of perihelion peri 134.68625464194°
Longitude of the ascending node node 130.87308565249°
Mean anomaly M -0.0027072945837398°
Mean motion n 0.00002656°/day

Visualization of Comet C/2017 S6 (Catalina) Orbit

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) 15 Days 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 Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2020 Mar 21 14h 58m 56s -47° 19’ 37” 29.06 Lupus
2020 Mar 22 14h 58m 14s -47° 20’ 40” 29.06 Lupus
2020 Mar 23 14h 57m 29s -47° 21’ 38” 29.07 Lupus
2020 Mar 24 14h 56m 44s -47° 22’ 30” 29.07 Lupus
2020 Mar 25 14h 55m 59s -47° 23’ 16” 29.08 Lupus
2020 Mar 26 14h 55m 13s -47° 23’ 57” 29.08 Lupus
2020 Mar 27 14h 54m 25s -47° 24’ 32” 29.09 Lupus
2020 Mar 28 14h 53m 39s -47° 25’ 00” 29.09 Lupus
2020 Mar 29 14h 52m 50s -47° 25’ 23” 29.10 Lupus
2020 Mar 30 14h 52m 02s -47° 25’ 41” 29.10 Lupus
2020 Mar 31 14h 51m 14s -47° 25’ 51” 29.11 Lupus
2020 Apr 01 14h 50m 25s -47° 25’ 56” 29.11 Lupus
2020 Apr 02 14h 49m 35s -47° 25’ 55” 29.12 Lupus
2020 Apr 03 14h 48m 44s -47° 25’ 49” 29.12 Lupus