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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 Sagittarius. The current Right Ascension is 19h 30m 09s and the Declination is -39° 13’ 24”.

19h 30m 09s
-39° 13’ 24”

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 full screen Online Planetarium)

Map showing Comet C/2015 B1 (PANSTARRS) in Sagittarius on April, 04 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 B1 (PANSTARRS) is right now (view fullscreen)

RA: 19h 30m 09s
Dec: -39° 13’ 24”
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 1,298,244,062 kilometers, equivalent to 8.678226 Astronomical Units. Light takes 1 hours, 12 minutes and 10.4761 seconds to travel from Comet C/2015 B1 (PANSTARRS) and arrive to us.

1 hours, 12 minutes and 10.4761 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 5.03067712 Astronomical Units, or 752,578,587 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 22.78.


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 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, 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 B1 (PANSTARRS) Orbital Elements

The following table lists the orbital elements of Comet C/2015 B1 (PANSTARRS) at epoch 19 March 2015 00:00 UTC (JD: 2457101.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.38244480
Orbit inclination i 18.02772980°
Perihelion distance q 5.97563765 AU
893,942,670 km
Aphelion distance Q 13.37692444 AU
2,001,159,417 km
Semi-major axis a 9.67628104 AU
1,447,551,043 km
Orbital period period 30.1000 years
10,994.1368 days
Date of perihelion transit Tp 2015-Sep-19 17:29:24
2,457,285.2288 JD
Next perihelion transit 2045-Oct-25 20:46
2,468,279.3656 JD
Argument of perihelion peri 188.27415326684°
Longitude of the ascending node node 353.35565530218°
Mean anomaly M 353.9838523387°
Mean motion n 0.03274473°/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
2020 Mar 28 19h 28m 05s -39° 04’ 32” 22.80 Sagittarius
2020 Mar 29 19h 28m 23s -39° 05’ 39” 22.79 Sagittarius
2020 Mar 30 19h 28m 41s -39° 06’ 47” 22.79 Sagittarius
2020 Mar 31 19h 28m 58s -39° 07’ 57” 22.79 Sagittarius
2020 Apr 01 19h 29m 15s -39° 09’ 07” 22.79 Sagittarius
2020 Apr 02 19h 29m 31s -39° 10’ 19” 22.78 Sagittarius
2020 Apr 03 19h 29m 47s -39° 11’ 34” 22.78 Sagittarius
2020 Apr 04 19h 30m 02s -39° 12’ 48” 22.78 Sagittarius
2020 Apr 05 19h 30m 16s -39° 14’ 05” 22.78 Sagittarius
2020 Apr 06 19h 30m 30s -39° 15’ 24” 22.77 Sagittarius
2020 Apr 07 19h 30m 44s -39° 16’ 42” 22.77 Sagittarius
2020 Apr 08 19h 30m 57s -39° 18’ 02” 22.77 Sagittarius
2020 Apr 09 19h 31m 10s -39° 19’ 24” 22.77 Sagittarius
2020 Apr 10 19h 31m 23s -39° 20’ 48” 22.77 Sagittarius