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Comet C/2015 B1 (PANSTARRS)

Available Resources

Comet C/2015 B1 (PANSTARRS) Sky Charts and Coordinates

This is a simplified sky chart, showing where Comet C/2015 B1 (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 B1 (PANSTARRS) in Scorpius on October, 15 2018
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]
16h 24m 36s
-38° 25’ 29”

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 B1 (PANSTARRS) Rise and Set Times

Today's Comet C/2015 B1 (PANSTARRS) rise, transit and set times from Greenwich, United Kingdom [change]. All times are relative to the Europe/London timezone.

Azimuth: 128.4°
Max altitude: 0.1°
Azimuth: 231.6°

Comet C/2015 B1 (PANSTARRS) Orbit Diagram

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) 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
2018 Oct 08 16h 19m 44s -38° 26’ 23” 21.95 Scorpius
2018 Oct 09 16h 20m 21s -38° 26’ 11” 21.95 Scorpius
2018 Oct 10 16h 21m 00s -38° 25’ 59” 21.96 Scorpius
2018 Oct 11 16h 21m 38s -38° 25’ 50” 21.96 Scorpius
2018 Oct 12 16h 22m 18s -38° 25’ 42” 21.97 Scorpius
2018 Oct 13 16h 22m 57s -38° 25’ 36” 21.97 Scorpius
2018 Oct 14 16h 23m 36s -38° 25’ 32” 21.98 Scorpius
2018 Oct 15 16h 24m 16s -38° 25’ 29” 21.98 Scorpius
2018 Oct 16 16h 24m 56s -38° 25’ 28” 21.99 Scorpius
2018 Oct 17 16h 25m 37s -38° 25’ 28” 21.99 Scorpius
2018 Oct 18 16h 26m 18s -38° 25’ 29” 22.00 Scorpius
2018 Oct 19 16h 26m 59s -38° 25’ 32” 22.00 Scorpius
2018 Oct 20 16h 27m 42s -38° 25’ 37” 22.01 Scorpius
2018 Oct 21 16h 28m 23s -38° 25’ 42” 22.01 Scorpius

Distance of Comet C/2015 B1 (PANSTARRS) from Earth

The following chart shows the distance of Comet C/2015 B1 (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 B1 (PANSTARRS) is also available as a real time updated value in the Live Position and Data Tracker.

Distance of Comet C/2015 B1 (PANSTARRS) from Earth between January 2013 and December 2075

Light Curve of Comet C/2015 B1 (PANSTARRS)

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 2075

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
Closest approach to Earth* 2045-Apr-01
Distance of closest approach* 5.03062771 AU
752,571,196 km

* NOTE: values for the closest approach are computed for the time interval between 2013-Jan-01 and 2075-Dec-31, with a sampling interval of 1 day.