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Comet 46P/Wirtanen

Available Resources

Comet 46P/Wirtanen Sky Charts and Coordinates

This is a simplified sky chart, showing where Comet 46P/Wirtanen 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 46P/Wirtanen in Ursa Major on January, 17 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]
08h 57m 20s
+58° 34’ 58”
6.3
12.58
36.7'

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 46P/Wirtanen Rise and Set Times

Comet 46P/Wirtanen is circumpolar from Greenwich, United Kingdom [change] and transits at 01:12 UTC (altitude: 82.9°)

Comet 46P/Wirtanen Orbit Diagram

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet 46P/Wirtanen with respect of the Sun and the orbits of the major planets. The position of Comet 46P/Wirtanen 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 46P/Wirtanen
View Comet 46P/Wirtanen in the 3D Solar System Simulator

Comet 46P/Wirtanen Ephemeris

The following table lists the ephemerides of Comet 46P/Wirtanen computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet 46P/Wirtanen in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2019 Jan 10 08h 22m 35s +59° 30’ 55” 11.85 Lynx
2019 Jan 11 08h 28m 36s +59° 28’ 08” 11.95 Lynx
2019 Jan 12 08h 34m 09s +59° 23’ 27” 12.05 Lynx
2019 Jan 13 08h 39m 15s +59° 17’ 09” 12.15 Ursa Major
2019 Jan 14 08h 43m 58s +59° 09’ 29” 12.25 Ursa Major
2019 Jan 15 08h 48m 17s +59° 00’ 34” 12.35 Ursa Major
2019 Jan 16 08h 52m 15s +58° 50’ 39” 12.44 Ursa Major
2019 Jan 17 08h 55m 55s +58° 39’ 47” 12.54 Ursa Major
2019 Jan 18 08h 59m 17s +58° 28’ 06” 12.63 Ursa Major
2019 Jan 19 09h 02m 21s +58° 15’ 45” 12.73 Ursa Major
2019 Jan 20 09h 05m 09s +58° 02’ 45” 12.82 Ursa Major
2019 Jan 21 09h 07m 45s +57° 49’ 13” 12.92 Ursa Major
2019 Jan 22 09h 10m 06s +57° 35’ 11” 13.01 Ursa Major
2019 Jan 23 09h 12m 15s +57° 20’ 41” 13.10 Ursa Major

Distance of Comet 46P/Wirtanen from Earth

The following chart shows the distance of Comet 46P/Wirtanen 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 46P/Wirtanen is also available as a real time updated value in the Live Position and Data Tracker.

Distance of Comet 46P/Wirtanen from Earth between January 2013 and December 2075

Light Curve of Comet 46P/Wirtanen

The following chart is the predicted light curve (visual magnitude as a function of time) of Comet 46P/Wirtanen, 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 46P/Wirtanen between January 2013 and December 2075

Comet 46P/Wirtanen Orbital Elements

The following table lists the orbital elements of Comet 46P/Wirtanen at epoch 13 January 2019 00:00 UTC (JD: 2458497.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.65875013
Orbit inclination i 11.74563831°
Perihelion distance q 1.05537833 AU
157,882,352 km
Aphelion distance Q 5.12999146 AU
767,435,800 km
Semi-major axis a 3.09268490 AU
462,659,076 km
Orbital period period 5.4400 years
1,986.5611 days
Date of perihelion transit Tp 2018-Dec-12 22:38:18
2,458,465.4433 JD
Next perihelion transit 2024-May-21 12:06
2,460,452.0044 JD
Argument of perihelion peri 356.35833893348°
Longitude of the ascending node node 82.155008497917°
Mean anomaly M 5.8092467872989°
Mean motion n 0.18121768°/day
Closest approach to Earth* 2018-Dec-17
Distance of closest approach* 0.07750892 AU
11,595,169 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.