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Comet C/2018 N2 (ASASSN)

Available Resources

Comet C/2018 N2 (ASASSN) Sky Charts and Coordinates

This is a simplified sky chart, showing where Comet C/2018 N2 (ASASSN) 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 C/2018 N2 (ASASSN) in Eridanus on September, 24 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]
02h 49m 35s
-46° 37’ 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 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 C/2018 N2 (ASASSN) Rise and Set Times

Comet C/2018 N2 (ASASSN) is currently not visible from Greenwich, United Kingdom [change]

Comet C/2018 N2 (ASASSN) Orbit Diagram

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet C/2018 N2 (ASASSN) with respect of the Sun and the orbits of the major planets. The position of Comet C/2018 N2 (ASASSN) 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 C/2018 N2 (ASASSN)
View Comet C/2018 N2 (ASASSN) in the 3D Solar System Simulator

Comet C/2018 N2 (ASASSN) Ephemeris

The following table lists the ephemerides of Comet C/2018 N2 (ASASSN) computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet C/2018 N2 (ASASSN) in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2018 Sep 17 02h 56m 50s -46° 06’ 56” 15.61 Eridanus
2018 Sep 18 02h 55m 57s -46° 11’ 27” 15.59 Eridanus
2018 Sep 19 02h 55m 00s -46° 15’ 51” 15.58 Eridanus
2018 Sep 20 02h 54m 05s -46° 20’ 09” 15.57 Eridanus
2018 Sep 21 02h 53m 05s -46° 24’ 20” 15.56 Eridanus
2018 Sep 22 02h 52m 06s -46° 28’ 23” 15.55 Eridanus
2018 Sep 23 02h 51m 06s -46° 32’ 17” 15.54 Eridanus
2018 Sep 24 02h 50m 03s -46° 36’ 03” 15.53 Eridanus
2018 Sep 25 02h 49m 00s -46° 39’ 42” 15.52 Eridanus
2018 Sep 26 02h 47m 54s -46° 43’ 10” 15.51 Eridanus
2018 Sep 27 02h 46m 49s -46° 46’ 31” 15.50 Eridanus
2018 Sep 28 02h 45m 42s -46° 49’ 41” 15.49 Eridanus
2018 Sep 29 02h 44m 33s -46° 52’ 41” 15.47 Eridanus
2018 Sep 30 02h 43m 23s -46° 55’ 29” 15.46 Eridanus

Distance of Comet C/2018 N2 (ASASSN) from Earth

The following chart shows the distance of Comet C/2018 N2 (ASASSN) 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 C/2018 N2 (ASASSN) is also available as a real time updated value in the Live Position and Data Tracker.

Distance of Comet C/2018 N2 (ASASSN) from Earth between January 2013 and December 2075

Light Curve of Comet C/2018 N2 (ASASSN)

The following chart is the predicted light curve (visual magnitude as a function of time) of Comet C/2018 N2 (ASASSN), 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 C/2018 N2 (ASASSN) between January 2013 and December 2075

Comet C/2018 N2 (ASASSN) Orbital Elements

The following table lists the orbital elements of Comet C/2018 N2 (ASASSN) at epoch 26 July 2018 00:00 UTC (JD: 2458326.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 1.00046928
Orbit inclination i 77.54149784°
Perihelion distance q 3.12275772 AU
467,157,906 km
Aphelion distance Q n.a.
Semi-major axis a n.a.
Orbital period period n.a.
Date of perihelion transit Tp 2019-Nov-10 15:23:57
2,458,798.1416 JD
Argument of perihelion peri 24.40999780026°
Longitude of the ascending node node 25.248675856652°
Mean anomaly M -0.00085634849855993°
Mean motion n 0.00000182°/day
Closest approach to Earth* 2019-Oct-20
Distance of closest approach* 2.21086121 AU
330,740,129 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.