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Comet 284P/McNaught

Comet 284P/McNaught is currently in the constellation of Ophiucus. The current Right Ascension of Comet 284P/McNaught is 16h 39m 30s and the Declination is -13° 32’ 36” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current estimated magnitude of Comet 284P/McNaught is 20.41 (JPL).

Summary of key facts about Comet 284P/McNaught [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]:

16h 39m 30s
-13° 32’ 36”
  • 284P/McNaught is above the horizon from Greenwich, United Kingdom [change].
  • It is visible looking in the East-South-East direction at an altitude of 7° above the horizon.
  • Given its current magnitude, 284P/McNaught is visible only through long exposure photography.
  • See also 284P/McNaught 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 284P/McNaught available on TheSkyLive:

Available Resources

Comet 284P/McNaught Position and Finder Charts

Below we provide Comet 284P/McNaught 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.

Map showing Comet 284P/McNaught in Ophiucus on October, 27 2020
Field of view: 50x30 degrees
View fullscreen
Map showing Comet 284P/McNaught in Ophiucus on October, 27 2020
Field of view: 10x6 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, 60 arcmin wide, showing where Comet 284P/McNaught is right now. Click on the image to see a more detailed fullscreen tracker view.

RA: 16h 39m 30s
Dec: -13° 32’ 36”
Deep sky finder chart for Comet 284P/McNaught
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet 284P/McNaught?, a page that provides all the information needed to find Comet 284P/McNaught in the sky and additional links to sky charts.

Comet 284P/McNaught Distance from Earth

The distance of Comet 284P/McNaught from Earth is currently 570,289,017 kilometers, equivalent to 3.812147 Astronomical Units. Light takes 31 minutes and 42.2794 seconds to travel from Comet 284P/McNaught and arrive to us.

31 minutes and 42.2794 seconds

The following chart shows the distance of Comet 284P/McNaught 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 284P/McNaught 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 284P/McNaught from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Comet 284P/McNaught to Earth

Between January 2013 and December 2100, the closest approach of Comet 284P/McNaught to Earth happens on Sun Oct 8 2090 at a distance of 1.023542 Astronomical Units, or 153,119,635 kilometers:

Sun Oct 8 2090

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

Comet 284P/McNaught brightness

The current visual magnitude of Comet 284P/McNaught is 20.41.


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 284P/McNaught, 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 284P/McNaught between January 2013 and December 2100

Comet 284P/McNaught 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 284P/McNaught rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 103.5°
Max altitude: 25.0°
Azimuth: 256.4°

The rise and set times are defined as the time at which the upper limb of Comet 284P/McNaught 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 284P/McNaught Orbital Elements

The following table lists the orbital elements of Comet 284P/McNaught at epoch 16 June 2010 00:00 UTC (JD: 2455364.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.37828227
Orbit inclination i 11.87390871°
Perihelion distance q 2.28276417 AU
341,496,660 km
Aphelion distance Q 5.06064601 AU
757,061,868 km
Semi-major axis a 3.67170509 AU
549,279,264 km
Orbital period period 7.0400 years
2,569.8047 days
Date of perihelion transit Tp 2007-Aug-18 05:16:20
2,454,330.7197 JD
Next perihelion transit 2014-Aug-31 00:35
2,456,900.5243 JD
Argument of perihelion peri 202.76766746049°
Longitude of the ascending node node 144.36456706179°
Mean anomaly M 144.82070172717°
Mean motion n 0.14008847°/day

Visualization of Comet 284P/McNaught Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet 284P/McNaught with respect of the Sun and the orbits of the major planets. The position of Comet 284P/McNaught 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 284P/McNaught
View Comet 284P/McNaught in the 3D Solar System Simulator

Comet 284P/McNaught 15 Days Ephemeris

The following table lists the ephemerides of Comet 284P/McNaught computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet 284P/McNaught in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2020 Oct 20 16h 29m 20s -12° 54’ 42” 20.47 Ophiucus
2020 Oct 21 16h 30m 39s -12° 59’ 57” 20.46 Ophiucus
2020 Oct 22 16h 32m 00s -13° 05’ 08” 20.45 Ophiucus
2020 Oct 23 16h 33m 23s -13° 10’ 18” 20.45 Ophiucus
2020 Oct 24 16h 34m 45s -13° 15’ 24” 20.44 Ophiucus
2020 Oct 25 16h 36m 07s -13° 20’ 29” 20.43 Ophiucus
2020 Oct 26 16h 37m 31s -13° 25’ 28” 20.42 Ophiucus
2020 Oct 27 16h 38m 53s -13° 30’ 27” 20.41 Ophiucus
2020 Oct 28 16h 40m 18s -13° 35’ 21” 20.41 Ophiucus
2020 Oct 29 16h 41m 43s -13° 40’ 13” 20.40 Ophiucus
2020 Oct 30 16h 43m 08s -13° 45’ 02” 20.39 Ophiucus
2020 Oct 31 16h 44m 34s -13° 49’ 46” 20.38 Ophiucus
2020 Nov 01 16h 46m 00s -13° 54’ 29” 20.37 Ophiucus
2020 Nov 02 16h 47m 26s -13° 59’ 08” 20.36 Ophiucus