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Comet C/2015 ER61 (PANSTARRS)

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Comet C/2015 ER61 (PANSTARRS) Position

Comet C/2015 ER61 (PANSTARRS) is currently in the constellation of Taurus. The current Right Ascension is 05h 26m 05s and the Declination is +19° 42’ 12”.

05h 26m 05s
+19° 42’ 12”

Simplified sky chart showing where Comet C/2015 ER61 (PANSTARRS) is right now in the sky with respect to the brightest stars and constellations (see full screen Online Planetarium)

Map showing Comet C/2015 ER61 (PANSTARRS) in Taurus on January, 23 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/2015 ER61 (PANSTARRS) is right now (view fullscreen)

RA: 05h 26m 05s
Dec: +19° 42’ 12”
Deep sky finder chart for Comet C/2015 ER61 (PANSTARRS)
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet C/2015 ER61 (PANSTARRS)?, a page that provides all the information needed to find Comet C/2015 ER61 (PANSTARRS) in the sky and additional links to sky charts.

Comet C/2015 ER61 (PANSTARRS) Distance

The distance of Comet C/2015 ER61 (PANSTARRS) from Earth is currently 1,374,099,608 kilometers, equivalent to 9.185289 Astronomical Units. Light takes 1 hours, 16 minutes and 23.5029 seconds to travel from Comet C/2015 ER61 (PANSTARRS) and arrive to us.

1 hours, 16 minutes and 23.5029 seconds

The following chart shows the distance of Comet C/2015 ER61 (PANSTARRS) 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/2015 ER61 (PANSTARRS) 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/2015 ER61 (PANSTARRS) from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Comet C/2015 ER61 (PANSTARRS) to Earth

Between January 2013 and December 2100 the closest approach of Comet C/2015 ER61 (PANSTARRS) to Earth happens on Wed Apr 19 2017 at a distance of 1.17846421 Astronomical Units, or 176,295,737 kilometers:

Wed Apr 19 2017

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

Comet C/2015 ER61 (PANSTARRS) brightness

The current visual magnitude of Comet C/2015 ER61 (PANSTARRS) is 22.70.


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/2015 ER61 (PANSTARRS), 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/2015 ER61 (PANSTARRS) between January 2013 and December 2100

Comet C/2015 ER61 (PANSTARRS) rise and set times

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

Today's Comet C/2015 ER61 (PANSTARRS) rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 70.3°
Max altitude: 58.2°
Azimuth: 289.7°
Comet C/2015 ER61 (PANSTARRS) is below the horizon from Greenwich, United Kingdom

The rise and set times are defined as the time at which the upper limb of Comet C/2015 ER61 (PANSTARRS) 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/2015 ER61 (PANSTARRS) Orbital Elements

The following table lists the orbital elements of Comet C/2015 ER61 (PANSTARRS) at epoch 28 April 2017 00:00 UTC (JD: 2457872.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.99727957
Orbit inclination i 6.34864358°
Perihelion distance q 1.04213208 AU
155,900,740 km
Aphelion distance Q 765.10939946 AU
114,458,737,241 km
Semi-major axis a 383.07576577 AU
57,307,318,991 km
Orbital period period 7,497.8200 years
2,738,580.0777 days
Date of perihelion transit Tp 2017-May-09 22:39:08
2,457,883.4438 JD
Next perihelion transit 9515-May-03 00:31
5,196,463.5216 JD
Argument of perihelion peri 68.192194610258°
Longitude of the ascending node node 235.2217941258°
Mean anomaly M 359.99856137694°
Mean motion n 0.00013145°/day

Visualization of Comet C/2015 ER61 (PANSTARRS) Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet C/2015 ER61 (PANSTARRS) with respect of the Sun and the orbits of the major planets. The position of Comet C/2015 ER61 (PANSTARRS) 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/2015 ER61 (PANSTARRS)
View Comet C/2015 ER61 (PANSTARRS) in the 3D Solar System Simulator

Comet C/2015 ER61 (PANSTARRS) 15 Days Ephemeris

The following table lists the ephemerides of Comet C/2015 ER61 (PANSTARRS) computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet C/2015 ER61 (PANSTARRS) in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2020 Jan 16 05h 28m 19s +19° 42’ 48” 22.64 Taurus
2020 Jan 17 05h 28m 00s +19° 42’ 42” 22.65 Taurus
2020 Jan 18 05h 27m 42s +19° 42’ 36” 22.66 Taurus
2020 Jan 19 05h 27m 24s +19° 42’ 30” 22.66 Taurus
2020 Jan 20 05h 27m 06s +19° 42’ 25” 22.67 Taurus
2020 Jan 21 05h 26m 48s +19° 42’ 20” 22.68 Taurus
2020 Jan 22 05h 26m 30s +19° 42’ 16” 22.69 Taurus
2020 Jan 23 05h 26m 13s +19° 42’ 14” 22.69 Taurus
2020 Jan 24 05h 25m 58s +19° 42’ 11” 22.70 Taurus
2020 Jan 25 05h 25m 41s +19° 42’ 07” 22.71 Taurus
2020 Jan 26 05h 25m 26s +19° 42’ 06” 22.71 Taurus
2020 Jan 27 05h 25m 10s +19° 42’ 05” 22.72 Taurus
2020 Jan 28 05h 24m 56s +19° 42’ 03” 22.73 Taurus
2020 Jan 29 05h 24m 41s +19° 42’ 02” 22.74 Taurus