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Comet C/2020 A2 (Iwamoto)

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Comet C/2020 A2 (Iwamoto) Position

Comet C/2020 A2 (Iwamoto) is currently in the constellation of Auriga. The current Right Ascension is 05h 36m 22s and the Declination is +47° 38’ 45”.

05h 36m 22s
+47° 38’ 45”

Simplified sky chart showing where Comet C/2020 A2 (Iwamoto) is right now in the sky with respect to the brightest stars and constellations (see full screen Online Planetarium)

Map showing Comet C/2020 A2 (Iwamoto) in Auriga on April, 05 2020
Field of view: 60x30 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 showing where Comet C/2020 A2 (Iwamoto) is right now (view fullscreen)

C/2020 A2 (Iwamoto)
RA: 05h 36m 22s
Dec: +47° 38’ 45”
Deep sky finder chart for Comet C/2020 A2 (Iwamoto)
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet C/2020 A2 (Iwamoto)?, a page that provides all the information needed to find Comet C/2020 A2 (Iwamoto) in the sky and additional links to sky charts.

Comet C/2020 A2 (Iwamoto) Distance

The distance of Comet C/2020 A2 (Iwamoto) from Earth is currently 263,714,815 kilometers, equivalent to 1.762825 Astronomical Units. Light takes 14 minutes and 39.6579 seconds to travel from Comet C/2020 A2 (Iwamoto) and arrive to us.

14 minutes and 39.6579 seconds

The following chart shows the distance of Comet C/2020 A2 (Iwamoto) 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 C/2020 A2 (Iwamoto) 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 C/2020 A2 (Iwamoto) from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Comet C/2020 A2 (Iwamoto) to Earth

Between January 2013 and December 2100 the closest approach of Comet C/2020 A2 (Iwamoto) to Earth happens on Sat Feb 22 2020 at a distance of 0.91285644 Astronomical Units, or 136,561,380 kilometers:

Sat Feb 22 2020

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

Comet C/2020 A2 (Iwamoto) brightness

The current visual magnitude of Comet C/2020 A2 (Iwamoto) is 19.36.


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 C/2020 A2 (Iwamoto), 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/2020 A2 (Iwamoto) between January 2013 and December 2100

Comet C/2020 A2 (Iwamoto) rise and set times

Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

Comet C/2020 A2 (Iwamoto) is circumpolar and transits at 16:38 UTC (altitude: 86.2°)

The rise and set times are defined as the time at which the upper limb of Comet C/2020 A2 (Iwamoto) 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 C/2020 A2 (Iwamoto) Orbital Elements

The following table lists the orbital elements of Comet C/2020 A2 (Iwamoto) at epoch 14 February 2020 00:00 UTC (JD: 2458894.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.99914750
Orbit inclination i 120.75000898°
Perihelion distance q 0.97802866 AU
146,311,005 km
Aphelion distance Q 2,293.50710497 AU
343,103,780,027 km
Semi-major axis a 1,147.24256681 AU
171,625,045,516 km
Orbital period period 38,858.9500 years
14,193,232.1275 days
Date of perihelion transit Tp 2020-Jan-08 07:44:27
2,458,856.8225 JD
Next perihelion transit 40879-Oct-08 10:48
16,652,088.9501 JD
Argument of perihelion peri 68.211003954121°
Longitude of the ascending node node 286.37882071554°
Mean anomaly M 0.00095565865278676°
Mean motion n 0.00002536°/day

Visualization of Comet C/2020 A2 (Iwamoto) Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet C/2020 A2 (Iwamoto) with respect of the Sun and the orbits of the major planets. The position of Comet C/2020 A2 (Iwamoto) 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/2020 A2 (Iwamoto)
View Comet C/2020 A2 (Iwamoto) in the 3D Solar System Simulator

Comet C/2020 A2 (Iwamoto) 15 Days Ephemeris

The following table lists the ephemerides of Comet C/2020 A2 (Iwamoto) computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet C/2020 A2 (Iwamoto) in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2020 Mar 29 05h 20m 47s +52° 31’ 41” 18.78 Auriga
2020 Mar 30 05h 23m 12s +51° 47’ 15” 18.86 Auriga
2020 Mar 31 05h 25m 32s +51° 04’ 15” 18.94 Auriga
2020 Apr 01 05h 27m 46s +50° 22’ 41” 19.02 Auriga
2020 Apr 02 05h 29m 53s +49° 42’ 27” 19.10 Auriga
2020 Apr 03 05h 31m 56s +49° 03’ 29” 19.18 Auriga
2020 Apr 04 05h 33m 56s +48° 25’ 46” 19.26 Auriga
2020 Apr 05 05h 35m 49s +47° 49’ 14” 19.34 Auriga
2020 Apr 06 05h 37m 41s +47° 13’ 50” 19.41 Auriga
2020 Apr 07 05h 39m 29s +46° 39’ 33” 19.49 Auriga
2020 Apr 08 05h 41m 13s +46° 06’ 17” 19.56 Auriga
2020 Apr 09 05h 42m 56s +45° 34’ 01” 19.64 Auriga
2020 Apr 10 05h 44m 35s +45° 02’ 44” 19.71 Auriga
2020 Apr 11 05h 46m 10s +44° 32’ 21” 19.78 Auriga