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Comet C/2015 B1 (PANSTARRS)

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Comet C/2015 B1 (PANSTARRS) Position

Comet C/2015 B1 (PANSTARRS) is currently in the constellation of Scorpius. The current Right Ascension is 17h 38m 32s and the Declination is -41° 11’ 36”.

17h 38m 32s
-41° 11’ 36”

Simplified sky chart showing where Comet C/2015 B1 (PANSTARRS) is right now in the sky with respect to the brightest stars and constellations (see fuillscreen Online Planetarium)

Map showing Comet C/2015 B1 (PANSTARRS) in Scorpius on September, 21 2019
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]

Hihgher precision deep sky finder chart showing where Comet C/2015 B1 (PANSTARRS) is right now (view fullscreen)

RA: 17h 38m 32s
Dec: -41° 11’ 36”
Deep sky finder chart for Comet C/2015 B1 (PANSTARRS)
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet C/2015 B1 (PANSTARRS)?, a page that provides all the information needed to find Comet C/2015 B1 (PANSTARRS) in the sky and additional links to sky charts.

Comet C/2015 B1 (PANSTARRS) Distance

The distance of Comet C/2015 B1 (PANSTARRS) from Earth is currently 1,229,267,266 kilometers, equivalent to 8.217144 Astronomical Units. Light takes 1 hours, 8 minutes and 20.3942 seconds to travel from Comet C/2015 B1 (PANSTARRS) and arrive to us.

1 hours, 8 minutes and 20.3942 seconds

The following chart shows the distance of Comet C/2015 B1 (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 B1 (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 B1 (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 B1 (PANSTARRS) to Earth

Between January 2013 and December 2100 the closest approach of Comet C/2015 B1 (PANSTARRS) to Earth happens on Sat Apr 1 2045 at a distance of 5.03062771 Astronomical Units, or 752,571,196 kilometers:

Sat Apr 1 2045

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

Comet C/2015 B1 (PANSTARRS) brightness

The current visual magnitude of Comet C/2015 B1 (PANSTARRS) is 22.44.


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.

The following chart is the predicted light curve (visual magnitude as a function of time) of Comet C/2015 B1 (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 B1 (PANSTARRS) between January 2013 and December 2100

Comet C/2015 B1 (PANSTARRS) rise and set times

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

Comet C/2015 B1 (PANSTARRS) is currently not visible from Greenwich, United Kingdom [change]

The rise and set times are defined as the time at which the upper limb of Comet C/2015 B1 (PANSTARRS) touches the horizon, consideting the effect of the atmospheric refraction. As the atmoshpere conditions cannot be modeled precisely the times reported here should be considered correct with an approximation of few minutes.

Comet C/2015 B1 (PANSTARRS) Orbital Elements

The following table lists the orbital elements of Comet C/2015 B1 (PANSTARRS) at epoch 12 March 2015 00:00 UTC (JD: 2457094.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.38250119
Orbit inclination i 18.02725222°
Perihelion distance q 5.97566722 AU
893,947,093 km
Aphelion distance Q 13.37875796 AU
2,001,433,708 km
Semi-major axis a 9.67721259 AU
1,447,690,401 km
Orbital period period 30.1000 years
10,995.7245 days
Date of perihelion transit Tp 2015-Sep-19 15:36:29
2,457,285.1503 JD
Next perihelion transit 2045-Oct-27 08:59
2,468,280.8748 JD
Argument of perihelion peri 188.26809514893°
Longitude of the ascending node node 353.35578321299°
Mean anomaly M 353.75810805055°
Mean motion n 0.03274000°/day

Visualization of Comet C/2015 B1 (PANSTARRS) Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet C/2015 B1 (PANSTARRS) with respect of the Sun and the orbits of the major planets. The position of Comet C/2015 B1 (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 B1 (PANSTARRS)
View Comet C/2015 B1 (PANSTARRS) in the 3D Solar System Simulator

Comet C/2015 B1 (PANSTARRS) 15 Days Ephemeris

The following table lists the ephemerides of Comet C/2015 B1 (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 B1 (PANSTARRS) in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2019 Sep 14 17h 36m 51s -41° 27’ 00” 22.39 Scorpius
2019 Sep 15 17h 37m 05s -41° 24’ 48” 22.40 Scorpius
2019 Sep 16 17h 37m 17s -41° 22’ 38” 22.41 Scorpius
2019 Sep 17 17h 37m 31s -41° 20’ 29” 22.41 Scorpius
2019 Sep 18 17h 37m 45s -41° 18’ 19” 22.42 Scorpius
2019 Sep 19 17h 37m 59s -41° 16’ 10” 22.42 Scorpius
2019 Sep 20 17h 38m 14s -41° 14’ 03” 22.43 Scorpius
2019 Sep 21 17h 38m 30s -41° 11’ 56” 22.44 Scorpius
2019 Sep 22 17h 38m 45s -41° 09’ 48” 22.44 Scorpius
2019 Sep 23 17h 39m 02s -41° 07’ 42” 22.45 Scorpius
2019 Sep 24 17h 39m 20s -41° 05’ 39” 22.45 Scorpius
2019 Sep 25 17h 39m 38s -41° 03’ 34” 22.46 Scorpius
2019 Sep 26 17h 39m 56s -41° 01’ 31” 22.47 Scorpius
2019 Sep 27 17h 40m 15s -40° 59’ 29” 22.47 Scorpius