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Comet C/2015 O1 (PANSTARRS)

Available Resources

Comet C/2015 O1 (PANSTARRS) Sky Charts and Coordinates

This is a simplified sky chart, showing where Comet C/2015 O1 (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 O1 (PANSTARRS) in Aquila on April, 29 2017
High Precision Live Sky Chart
18h 57m 43s
+11° 19’ 33”
 = visible to the naked eye
 = binocular, brighter than 10th magnitude
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]

Comet C/2015 O1 (PANSTARRS) Rise and Set Times

Today's Comet C/2015 O1 (PANSTARRS) rise, transit and set times from Greenwich, United Kingdom [change]. All times are relative to the local timezone Europe/London.

Azimuth: 78.7°
Max altitude: 49.8°
Azimuth: 281.3°

Comet C/2015 O1 (PANSTARRS) Orbit Diagram

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet C/2015 O1 (PANSTARRS) with respect of the Sun and the orbits of the major planets. The position of Comet C/2015 O1 (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 O1 (PANSTARRS)
View Comet C/2015 O1 (PANSTARRS) in the 3D Solar System Simulator

Comet C/2015 O1 (PANSTARRS) Ephemeris

The following table lists the ephemerides of Comet C/2015 O1 (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 O1 (PANSTARRS) in our Online Planetarium at the chosen date.

Date MagnitudeMag Right AscensionR.A. DeclinationDec. Constellation
2017 Apr 22 15.53 19h 02m 25s +09° 47’ 48” Aquila
2017 Apr 23 15.52 19h 01m 49s +10° 00’ 44” Aquila
2017 Apr 24 15.51 19h 01m 10s +10° 13’ 45” Aquila
2017 Apr 25 15.49 19h 00m 33s +10° 26’ 49” Aquila
2017 Apr 26 15.48 18h 59m 52s +10° 39’ 56” Aquila
2017 Apr 27 15.46 18h 59m 11s +10° 53’ 05” Aquila
2017 Apr 28 15.45 18h 58m 27s +11° 06’ 19” Aquila
2017 Apr 29 15.44 18h 57m 43s +11° 19’ 33” Aquila
2017 Apr 30 15.42 18h 56m 58s +11° 32’ 50” Aquila
2017 May 01 15.41 18h 56m 12s +11° 46’ 10” Aquila
2017 May 02 15.40 18h 55m 23s +11° 59’ 31” Aquila
2017 May 03 15.38 18h 54m 33s +12° 12’ 55” Hercules
2017 May 04 15.37 18h 53m 43s +12° 26’ 18” Hercules
2017 May 05 15.36 18h 52m 50s +12° 39’ 44” Hercules

Distance of Comet C/2015 O1 (PANSTARRS) from Earth

The following chart shows the distance of Comet C/2015 O1 (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 O1 (PANSTARRS) is also available as a real time updated value in the Live Position and Data Tracker.

Distance of Comet C/2015 O1 (PANSTARRS) from Earth between January 2013 and January 2030

Light Curve of Comet C/2015 O1 (PANSTARRS)

The following chart is the predicted light curve (visual magnitude as a function of time) of Comet C/2015 O1 (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 O1 (PANSTARRS) between January 2013 and January 2030

Comet C/2015 O1 (PANSTARRS) Orbital Elements

The following table lists the orbital elements of Comet C/2015 O1 (PANSTARRS) at epoch 27 February 2016 00:00 UTC (JD: 2457446.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 1.00028347
Orbit inclination i 127.21901172°
Perihelion distance q 3.73069289 AU
558,103,713 km
Aphelion distance Q n.a.
Semi-major axis a n.a.
Orbital period period n.a.
Date of perihelion transit Tp 2018-Feb-18 19:25:10
2,458,168.3091 JD
Argument of perihelion peri 89.551062613205°
Longitude of the ascending node node 299.851751496°
Mean anomaly M -0.00047118740338021°
Mean motion n 0.00000065°/day
Closest approach to Earth* 2018-Apr-05
Distance of closest approach* 3.23300659 AU
483,650,903 km

* NOTE: values for the closest approach are computed for the time interval between 2013-Jan-01 and 2030-Jan-01, with a sampling interval of 1 day.