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Comet 240P/NEAT

Comet 240P/NEAT is currently in the constellation of Libra. The current Right Ascension of Comet 240P/NEAT is 15h 27m 08s and the Declination is -06° 49’ 25” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current estimated magnitude of Comet 240P/NEAT is 19.67 (JPL).

Summary of key facts about Comet 240P/NEAT [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]:

15h 27m 08s
-06° 49’ 25”

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Additional information about Comet 240P/NEAT available on TheSkyLive:

Available Resources

Comet 240P/NEAT Position and Finder Charts

Below we provide Comet 240P/NEAT 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 240P/NEAT in Libra on May, 18 2021
Field of view: 50x30 degrees
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Map showing Comet 240P/NEAT in Libra on May, 18 2021
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 240P/NEAT is right now. Click on the image to see a more detailed fullscreen tracker view.

RA: 15h 27m 08s
Dec: -06° 49’ 25”
Deep sky finder chart for Comet 240P/NEAT
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet 240P/NEAT?, a page that provides all the information needed to find Comet 240P/NEAT in the sky and additional links to sky charts.

Comet 240P/NEAT Distance from Earth

The distance of Comet 240P/NEAT from Earth is currently 663,410,109 kilometers, equivalent to 4.434623 Astronomical Units. Light takes 36 minutes and 52.8979 seconds to travel from Comet 240P/NEAT and arrive to us.

36 minutes and 52.8979 seconds

The following chart shows the distance of Comet 240P/NEAT 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 240P/NEAT 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 240P/NEAT from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Comet 240P/NEAT to Earth

Between January 2013 and December 2100, the closest approach of Comet 240P/NEAT to Earth happens on Thu Nov 25 2055 at a distance of 1.118207 Astronomical Units, or 167,281,380 kilometers:

Thu Nov 25 2055

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

Comet 240P/NEAT brightness

The current visual magnitude of Comet 240P/NEAT is 19.67.


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 240P/NEAT, 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 240P/NEAT between January 2013 and December 2100

Comet 240P/NEAT 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 240P/NEAT rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 96.8°
Max altitude: 31.7°
Azimuth: 263.2°

The rise and set times are defined as the time at which the upper limb of Comet 240P/NEAT 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 240P/NEAT Orbital Elements

The following table lists the orbital elements of Comet 240P/NEAT at epoch 11 March 2014 00:00 UTC (JD: 2456728.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.44979404
Orbit inclination i 23.52461401°
Perihelion distance q 2.12838909 AU
318,402,476 km
Aphelion distance Q 5.60831035 AU
838,991,289 km
Semi-major axis a 3.86834972 AU
578,696,882 km
Orbital period period 7.6100 years
2,778.9902 days
Date of perihelion transit Tp 2010-Oct-04 18:18:05
2,455,474.2626 JD
Next perihelion transit 2018-May-14 18:04
2,458,253.2528 JD
Argument of perihelion peri 352.15222818459°
Longitude of the ascending node node 74.951834906858°
Mean anomaly M 162.47825277951°
Mean motion n 0.12954346°/day

Visualization of Comet 240P/NEAT Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet 240P/NEAT with respect of the Sun and the orbits of the major planets. The position of Comet 240P/NEAT 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 240P/NEAT 15 Days Ephemeris

The following table lists the ephemerides of Comet 240P/NEAT computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet 240P/NEAT in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2021 May 11 15h 31m 49s -06° 54’ 11” 19.66 Libra
2021 May 12 15h 31m 11s -06° 53’ 25” 19.66 Libra
2021 May 13 15h 30m 33s -06° 52’ 41” 19.67 Libra
2021 May 14 15h 29m 57s -06° 51’ 59” 19.67 Libra
2021 May 15 15h 29m 18s -06° 51’ 20” 19.67 Libra
2021 May 16 15h 28m 41s -06° 50’ 44” 19.67 Libra
2021 May 17 15h 28m 04s -06° 50’ 09” 19.67 Libra
2021 May 18 15h 27m 26s -06° 49’ 38” 19.67 Libra
2021 May 19 15h 26m 49s -06° 49’ 09” 19.67 Libra
2021 May 20 15h 26m 12s -06° 48’ 44” 19.68 Libra
2021 May 21 15h 25m 36s -06° 48’ 23” 19.68 Libra
2021 May 22 15h 24m 59s -06° 48’ 02” 19.68 Libra
2021 May 23 15h 24m 21s -06° 47’ 47” 19.68 Libra
2021 May 24 15h 23m 44s -06° 47’ 33” 19.69 Libra