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Comet C/2015 ER61 (PANSTARRS)

Available Resources

Comet C/2015 ER61 (PANSTARRS) Sky Charts and Coordinates

This is a simplified sky chart, showing where Comet C/2015 ER61 (PANSTARRS) 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/2015 ER61 (PANSTARRS) in Taurus on March, 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]
04h 47m 40s
+19° 48’ 14”

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/2015 ER61 (PANSTARRS) Rise and Set Times

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

Azimuth: 70.2°
Max altitude: 58.3°
Azimuth: 289.8°

Comet C/2015 ER61 (PANSTARRS) Orbit Diagram

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) 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
2019 Mar 17 04h 45m 29s +19° 42’ 56” 20.58 Taurus
2019 Mar 18 04h 45m 43s +19° 43’ 35” 20.59 Taurus
2019 Mar 19 04h 46m 00s +19° 44’ 12” 20.60 Taurus
2019 Mar 20 04h 46m 15s +19° 44’ 53” 20.61 Taurus
2019 Mar 21 04h 46m 32s +19° 45’ 33” 20.62 Taurus
2019 Mar 22 04h 46m 49s +19° 46’ 13” 20.63 Taurus
2019 Mar 23 04h 47m 06s +19° 46’ 54” 20.64 Taurus
2019 Mar 24 04h 47m 24s +19° 47’ 35” 20.65 Taurus
2019 Mar 25 04h 47m 41s +19° 48’ 16” 20.66 Taurus
2019 Mar 26 04h 48m 01s +19° 48’ 59” 20.67 Taurus
2019 Mar 27 04h 48m 20s +19° 49’ 41” 20.68 Taurus
2019 Mar 28 04h 48m 38s +19° 50’ 23” 20.69 Taurus
2019 Mar 29 04h 48m 59s +19° 51’ 06” 20.70 Taurus
2019 Mar 30 04h 49m 18s +19° 51’ 50” 20.71 Taurus

Distance of Comet C/2015 ER61 (PANSTARRS) from Earth

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

Distance of Comet C/2015 ER61 (PANSTARRS) from Earth between January 2013 and December 2100

Light Curve of Comet C/2015 ER61 (PANSTARRS)

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) Orbital Elements

The following table lists the orbital elements of Comet C/2015 ER61 (PANSTARRS) at epoch 27 April 2017 00:00 UTC (JD: 2457871.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.99728032
Orbit inclination i 6.34864478°
Perihelion distance q 1.04213203 AU
155,900,733 km
Aphelion distance Q 765.32225923 AU
114,490,580,610 km
Semi-major axis a 383.18219563 AU
57,323,240,671 km
Orbital period period 7,500.9500 years
2,739,721.4457 days
Date of perihelion transit Tp 2017-May-09 22:39:07
2,457,883.4438 JD
Next perihelion transit 9518-Jun-17 09:20
5,197,604.8896 JD
Argument of perihelion peri 68.19218066711°
Longitude of the ascending node node 235.22180537444°
Mean anomaly M 359.99843057651°
Mean motion n 0.00013140°/day
Closest approach to Earth* 2017-Apr-19
Distance of closest approach* 1.17846421 AU
176,295,737 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.