The Solar System at your Fingertips
🌎 Location: Greenwich, United Kingdom [change]
Comets » 

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 April, 24 2019
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]
10h 29m 39s
+39° 15’ 27”

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

Comet 240P/NEAT is circumpolar from Greenwich, United Kingdom [change] and transits at 20:19 UTC (altitude: 77.8°)

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
2019 Apr 17 10h 29m 18s +40° 21’ 57” 17.58 Ursa Major
2019 Apr 18 10h 29m 17s +40° 13’ 46” 17.60 Ursa Major
2019 Apr 19 10h 29m 16s +40° 05’ 29” 17.62 Ursa Major
2019 Apr 20 10h 29m 17s +39° 57’ 03” 17.64 Ursa Major
2019 Apr 21 10h 29m 18s +39° 48’ 33” 17.66 Ursa Major
2019 Apr 22 10h 29m 21s +39° 39’ 56” 17.68 Ursa Major
2019 Apr 23 10h 29m 26s +39° 31’ 14” 17.70 Ursa Major
2019 Apr 24 10h 29m 32s +39° 22’ 27” 17.71 Ursa Major
2019 Apr 25 10h 29m 40s +39° 13’ 33” 17.73 Leo Minor
2019 Apr 26 10h 29m 48s +39° 04’ 35” 17.75 Leo Minor
2019 Apr 27 10h 29m 58s +38° 55’ 32” 17.77 Leo Minor
2019 Apr 28 10h 30m 11s +38° 46’ 23” 17.79 Leo Minor
2019 Apr 29 10h 30m 23s +38° 37’ 10” 17.81 Leo Minor
2019 Apr 30 10h 30m 37s +38° 27’ 55” 17.83 Leo Minor

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 2100

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 2100

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 2100-Dec-31, with a sampling interval of 1 day.