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public LocationGreenwich, UK
Sunrise: 5:11 
Transit: 13:06 
Sunset: 21:00
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Comets » 

Comet 284P/McNaught

Above the horizon.  Rise: 7:35 | Tran: 14:47 | Set: 21:58
Alt: 21.33°   Az: 94.06°   Direction: East

Comet 284P/McNaught is in the constellation of Leo, at a distance of 872,069,306.0 kilometers from Earth. The current Right Ascension is 09h 50m 19s and the Declination is +14° 05’ 18” (apparent coordinates). The predicted magnitude of Comet 284P/McNaught is 25.49 (data provided by JPL Horizons).

Finder chart of 284P/McNaught in Leo on July,22 2024
Map showing Comet 284P/McNaught in Leo on July, 22 2024. Field of view: 50x30 degrees
View interactive star map

Celestial Coordinates


09h 50m 19s
+14° 05’ 18”
19h 06m 39s
04h 56m 59s


09h 48m 59s
+14° 12’ 12”

Additional Information


The observed values of Magnitude, Coma Diameter and Tail Length are derived from the most recent observation recorded at the Comet Observers Database. The value of Predicted Magnitude comes from the JPL Horizons ephemerides service and, in the case of comets, might be inaccurate given the highly dynamic and unpredictable behavior of these objects. When available, please refer to the Observed Magnitude value and consider the Predicted 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.

Rise and Set Times

Today's rise, transit and set times of Comet 284P/McNaught from Greenwich, UK (all times relative to the local timezone Europe/London):

Azimuth: 75.9°
Max altitude: 52.6°
Azimuth: 284.1°
  • 284P/McNaught is above the horizon from Greenwich, UK.
  • Right now it is placed in the East direction at an altitude of 21.33° above the horizon.
  • Given its current magnitude, 284P/McNaught is visible only through long exposure photography.
  • 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.

Finder Charts

Finder chart of 284P/McNaught
Sky map showing Comet 284P/McNaught in Leo on July, 22 2024. Field of view: 10x6 degrees. View in interactive sky chart

High 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: 09h 48m 59s
Dec: +14° 12’ 12”
Deep sky finder chart for Comet 284P/McNaught. Field of view: 60x40 arcmins. View in deep sky object tracker

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.

Distance from Earth

The distance of Comet 284P/McNaught from Earth is currently 872,069,306.0 kilometers, equivalent to 5.8294232526 Astronomical Units. Light takes 48m 28.910s to travel from Comet 284P/McNaught and arrive to us.

48m 28.910s

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.

Chart of the distance of Comet 284P/McNaught from Earth in Astronomical Units (au)

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

Between 1 January 2013 and 30 December 2100, the closest approach of Comet 284P/McNaught to Earth happens on Sun Oct 8 2090 at a distance of 1.020509 Astronomical Units, or 152,665,955 kilometers:

Sun Oct 8 2090

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

Light Curve

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.

Chart of the magnitude of Comet 284P/McNaught as a function of time

Orbital Elements

The following table lists the orbital elements of Comet 284P/McNaught at epoch 04 October 2013 00:00 UTC (JD: 2456570.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.37696784
Orbit inclination i 11.86209134°
Perihelion distance q 2.28921595 AU
342,461,832 km
Aphelion distance Q 5.05941255 AU
756,877,345 km
Semi-major axis a 3.67431425 AU
549,669,589 km
Orbital period period 7.0432 years
2,572.5444 days
Date of perihelion transit Tp 2014-Sep-02 12:09:45
2,456,903.0068 JD
Next perihelion transit 2021-Sep-18 01:13
2,459,475.5511 JD
Argument of perihelion peri 202.87158087445°
Longitude of the ascending node node 144.29768321929°
Mean anomaly M 313.46924253121°
Mean motion n 0.13993928°/day

Orbit Visualization

Orbit Diagram of Comet 284P/McNaught
View Comet 284P/McNaught in the 3D Solar System Simulator

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. Apparent celestial coordinates are provided.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2024 Jul 15 09h 44m 13s +14° 31’ 18” 25.45 Leo
2024 Jul 16 09h 45m 02s +14° 27’ 51” 25.46 Leo
2024 Jul 17 09h 45m 52s +14° 24’ 23” 25.46 Leo
2024 Jul 18 09h 46m 41s +14° 20’ 53” 25.47 Leo
2024 Jul 19 09h 47m 31s +14° 17’ 21” 25.47 Leo
2024 Jul 20 09h 48m 21s +14° 13’ 48” 25.48 Leo
2024 Jul 21 09h 49m 11s +14° 10’ 14” 25.48 Leo
2024 Jul 22 09h 50m 01s +14° 06’ 38” 25.49 Leo
2024 Jul 23 09h 50m 52s +14° 03’ 01” 25.49 Leo
2024 Jul 24 09h 51m 41s +13° 59’ 23” 25.49 Leo
2024 Jul 25 09h 52m 32s +13° 55’ 43” 25.50 Leo
2024 Jul 26 09h 53m 22s +13° 52’ 02” 25.50 Leo
2024 Jul 27 09h 54m 13s +13° 48’ 19” 25.51 Leo
2024 Jul 28 09h 55m 04s +13° 44’ 36” 25.51 Leo

Additional Resources