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Comet 12P/Pons-Brooks

Available Resources

Comet 12P/Pons-Brooks Sky Charts and Coordinates

This is a simplified sky chart, showing where Comet 12P/Pons-Brooks 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 12P/Pons-Brooks in Hercules on April, 21 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]
18h 10m 34s
+16° 04’ 38”
-
27.88
-

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 12P/Pons-Brooks Rise and Set Times

Today's Comet 12P/Pons-Brooks rise, transit and set times from Greenwich, United Kingdom [change]. All times are relative to the Europe/London timezone.

Azimuth: 73.9°
Max altitude: 54.6°
Azimuth: 286.1°

Comet 12P/Pons-Brooks Orbit Diagram

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet 12P/Pons-Brooks with respect of the Sun and the orbits of the major planets. The position of Comet 12P/Pons-Brooks 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 12P/Pons-Brooks
View Comet 12P/Pons-Brooks in the 3D Solar System Simulator

Comet 12P/Pons-Brooks Ephemeris

The following table lists the ephemerides of Comet 12P/Pons-Brooks computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet 12P/Pons-Brooks in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2019 Apr 14 18h 11m 22s +15° 42’ 30” 27.92 Hercules
2019 Apr 15 18h 11m 17s +15° 45’ 24” 27.91 Hercules
2019 Apr 16 18h 11m 12s +15° 48’ 15” 27.91 Hercules
2019 Apr 17 18h 11m 07s +15° 51’ 06” 27.90 Hercules
2019 Apr 18 18h 10m 59s +15° 53’ 57” 27.90 Hercules
2019 Apr 19 18h 10m 54s +15° 56’ 48” 27.89 Hercules
2019 Apr 20 18h 10m 46s +15° 59’ 35” 27.89 Hercules
2019 Apr 21 18h 10m 40s +16° 02’ 23” 27.88 Hercules
2019 Apr 22 18h 10m 32s +16° 05’ 12” 27.88 Hercules
2019 Apr 23 18h 10m 24s +16° 07’ 58” 27.87 Hercules
2019 Apr 24 18h 10m 17s +16° 10’ 42” 27.87 Hercules
2019 Apr 25 18h 10m 09s +16° 13’ 26” 27.86 Hercules
2019 Apr 26 18h 10m 00s +16° 16’ 09” 27.86 Hercules
2019 Apr 27 18h 09m 51s +16° 18’ 50” 27.86 Hercules

Distance of Comet 12P/Pons-Brooks from Earth

The following chart shows the distance of Comet 12P/Pons-Brooks 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 12P/Pons-Brooks is also available as a real time updated value in the Live Position and Data Tracker.

Distance of Comet 12P/Pons-Brooks from Earth between January 2013 and December 2100

Light Curve of Comet 12P/Pons-Brooks

The following chart is the predicted light curve (visual magnitude as a function of time) of Comet 12P/Pons-Brooks, 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 12P/Pons-Brooks between January 2013 and December 2100

Comet 12P/Pons-Brooks Orbital Elements

The following table lists the orbital elements of Comet 12P/Pons-Brooks at epoch 01 January 1970 00:00 UTC (JD: 2435000.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.95481239
Orbit inclination i 74.17689423°
Perihelion distance q 0.77366709 AU
115,738,949 km
Aphelion distance Q 33.46877940 AU
5,006,858,143 km
Semi-major axis a 17.12122324 AU
2,561,298,546 km
Orbital period period 70.8500 years
25,876.2067 days
Date of perihelion transit Tp 1954-May-22 21:08:25
2,434,885.3809 JD
Next perihelion transit 2025-Mar-27 02:06
2,460,761.5876 JD
Argument of perihelion peri 199.0284685654°
Longitude of the ascending node node 255.8911443583°
Mean anomaly M 1.601583044411°
Mean motion n 0.01391239°/day
Closest approach to Earth* 2095-Aug-28
Distance of closest approach* 1.52501427 AU
228,138,889 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.