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Comet 240P/NEAT

Available Resources

Comet 240P/NEAT Sky Charts and Coordinates

This is a simplified sky chart, showing where Comet 240P/NEAT 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 240P/NEAT in Ursa Major on December, 15 2018
High Precision Live Sky Chart
 = visible to the naked eye
 = binocular, brighter than 10th magnitude
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]
11h 14m 05s
+31° 52’ 00”

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 behvior 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.

Comet 240P/NEAT Rise and Set Times

Today's Comet 240P/NEAT rise, transit and set times from Greenwich, United Kingdom [change]. All times are relative to the Europe/London timezone.

Azimuth: 58.0°
Max altitude: 70.4°
Azimuth: 301.9°

Comet 240P/NEAT Orbit Diagram

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 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
2018 Dec 08 11h 07m 36s +31° 02’ 35” 16.34 Ursa Major
2018 Dec 09 11h 08m 35s +31° 08’ 59” 16.34 Ursa Major
2018 Dec 10 11h 09m 32s +31° 15’ 33” 16.34 Ursa Major
2018 Dec 11 11h 10m 27s +31° 22’ 17” 16.34 Ursa Major
2018 Dec 12 11h 11m 22s +31° 29’ 11” 16.34 Ursa Major
2018 Dec 13 11h 12m 15s +31° 36’ 14” 16.34 Ursa Major
2018 Dec 14 11h 13m 08s +31° 43’ 27” 16.34 Ursa Major
2018 Dec 15 11h 13m 58s +31° 50’ 52” 16.34 Ursa Major
2018 Dec 16 11h 14m 47s +31° 58’ 24” 16.34 Ursa Major
2018 Dec 17 11h 15m 33s +32° 06’ 07” 16.34 Ursa Major
2018 Dec 18 11h 16m 19s +32° 14’ 00” 16.34 Ursa Major
2018 Dec 19 11h 17m 03s +32° 22’ 02” 16.34 Ursa Major
2018 Dec 20 11h 17m 47s +32° 30’ 15” 16.34 Ursa Major
2018 Dec 21 11h 18m 28s +32° 38’ 36” 16.34 Ursa Major

Distance of Comet 240P/NEAT from Earth

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

Distance of Comet 240P/NEAT from Earth between January 2013 and December 2075

Light Curve of Comet 240P/NEAT

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 2075

Comet 240P/NEAT Orbital Elements

The following table lists the orbital elements of Comet 240P/NEAT at epoch 21 October 2012 00:00 UTC (JD: 2456222.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.45018524
Orbit inclination i 23.52388935°
Perihelion distance q 2.12554410 AU
317,976,872 km
Aphelion distance Q 5.60631123 AU
838,692,225 km
Semi-major axis a 3.86592767 AU
578,334,548 km
Orbital period period 7.6000 years
2,776.3807 days
Date of perihelion transit Tp 2010-Oct-04 14:03:45
2,455,474.0859 JD
Next perihelion transit 2018-May-11 23:11
2,458,250.4666 JD
Argument of perihelion peri 352.06441791353°
Longitude of the ascending node node 74.954346849086°
Mean anomaly M 97.043270670119°
Mean motion n 0.12966522°/day
Closest approach to Earth* 2055-Nov-28
Distance of closest approach* 1.10284017 AU
164,982,541 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.