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Comet 19P/Borrelly

Available Resources

Comet 19P/Borrelly Sky Charts and Coordinates

This is a simplified sky chart, showing where Comet 19P/Borrelly 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 19P/Borrelly in Ophiucus 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]
17h 33m 59s
-24° 00’ 43”

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 19P/Borrelly Rise and Set Times

Today's Comet 19P/Borrelly rise, transit and set times from Greenwich, United Kingdom [change]. All times are relative to the Europe/London timezone.

Azimuth: 114.0°
Max altitude: 14.5°
Azimuth: 246.0°

Comet 19P/Borrelly Orbit Diagram

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet 19P/Borrelly with respect of the Sun and the orbits of the major planets. The position of Comet 19P/Borrelly 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 19P/Borrelly
View Comet 19P/Borrelly in the 3D Solar System Simulator

Comet 19P/Borrelly Ephemeris

The following table lists the ephemerides of Comet 19P/Borrelly computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet 19P/Borrelly in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2019 Apr 14 17h 35m 53s -23° 49’ 59” 24.70 Ophiucus
2019 Apr 15 17h 35m 40s -23° 51’ 27” 24.69 Ophiucus
2019 Apr 16 17h 35m 26s -23° 52’ 54” 24.69 Ophiucus
2019 Apr 17 17h 35m 12s -23° 54’ 20” 24.68 Ophiucus
2019 Apr 18 17h 34m 56s -23° 55’ 49” 24.67 Ophiucus
2019 Apr 19 17h 34m 41s -23° 57’ 15” 24.66 Ophiucus
2019 Apr 20 17h 34m 23s -23° 58’ 42” 24.66 Ophiucus
2019 Apr 21 17h 34m 05s -24° 00’ 10” 24.65 Ophiucus
2019 Apr 22 17h 33m 47s -24° 01’ 36” 24.64 Ophiucus
2019 Apr 23 17h 33m 28s -24° 03’ 02” 24.63 Ophiucus
2019 Apr 24 17h 33m 07s -24° 04’ 29” 24.63 Ophiucus
2019 Apr 25 17h 32m 47s -24° 05’ 56” 24.62 Ophiucus
2019 Apr 26 17h 32m 25s -24° 07’ 22” 24.61 Ophiucus
2019 Apr 27 17h 32m 03s -24° 08’ 48” 24.60 Ophiucus

Distance of Comet 19P/Borrelly from Earth

The following chart shows the distance of Comet 19P/Borrelly 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 19P/Borrelly is also available as a real time updated value in the Live Position and Data Tracker.

Distance of Comet 19P/Borrelly from Earth between January 2013 and December 2100

Light Curve of Comet 19P/Borrelly

The following chart is the predicted light curve (visual magnitude as a function of time) of Comet 19P/Borrelly, 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 19P/Borrelly between January 2013 and December 2100

Comet 19P/Borrelly Orbital Elements

The following table lists the orbital elements of Comet 19P/Borrelly at epoch 30 April 2004 00:00 UTC (JD: 2453126.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.62328927
Orbit inclination i 30.31307022°
Perihelion distance q 1.35979974 AU
203,423,146 km
Aphelion distance Q 5.85953135 AU
876,573,416 km
Semi-major axis a 3.60966555 AU
539,998,281 km
Orbital period period 6.8600 years
2,504.9489 days
Date of perihelion transit Tp 2001-Sep-14 06:05:13
2,452,166.7536 JD
Next perihelion transit 2008-Jul-24 04:51
2,454,671.7025 JD
Argument of perihelion peri 353.3506872275°
Longitude of the ascending node node 75.435976862589°
Mean anomaly M 137.9304349205°
Mean motion n 0.14371551°/day
Closest approach to Earth* 2028-Dec-06
Distance of closest approach* 0.41296654 AU
61,778,915 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.