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Comet 19P/Borrelly

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Comet 19P/Borrelly Position

Comet 19P/Borrelly is currently in the constellation of Sagittarius. The current Right Ascension is 18h 59m 48s and the Declination is -32° 10’ 48”.

18h 59m 48s
-32° 10’ 48”

Simplified sky chart showing where Comet 19P/Borrelly is right now in the sky with respect to the brightest stars and constellations (see full screen Online Planetarium)

Map showing Comet 19P/Borrelly 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 19P/Borrelly is right now (view fullscreen)

RA: 18h 59m 48s
Dec: -32° 10’ 48”
Deep sky finder chart for Comet 19P/Borrelly
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet 19P/Borrelly?, a page that provides all the information needed to find Comet 19P/Borrelly in the sky and additional links to sky charts.

Comet 19P/Borrelly Distance

The distance of Comet 19P/Borrelly from Earth is currently 719,053,995 kilometers, equivalent to 4.806579 Astronomical Units. Light takes 39 minutes and 58.5060 seconds to travel from Comet 19P/Borrelly and arrive to us.

39 minutes and 58.5060 seconds

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

Closest approach of Comet 19P/Borrelly to Earth

Between January 2013 and December 2100 the closest approach of Comet 19P/Borrelly to Earth happens on Wed Dec 6 2028 at a distance of 0.41296654 Astronomical Units, or 61,778,914 kilometers:

Wed Dec 6 2028

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

Comet 19P/Borrelly brightness

The current visual magnitude of Comet 19P/Borrelly is 23.42.


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 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 rise and set times

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

Today's Comet 19P/Borrelly rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 122.1°
Max altitude: 6.4°
Azimuth: 237.8°
Comet 19P/Borrelly is below the horizon from Greenwich, United Kingdom

The rise and set times are defined as the time at which the upper limb of Comet 19P/Borrelly 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 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

Visualization of Comet 19P/Borrelly Orbit

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 15 Days 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
2020 Mar 28 18h 57m 05s -31° 46’ 27” 23.53 Sagittarius
2020 Mar 29 18h 57m 28s -31° 49’ 23” 23.51 Sagittarius
2020 Mar 30 18h 57m 51s -31° 52’ 23” 23.50 Sagittarius
2020 Mar 31 18h 58m 13s -31° 55’ 23” 23.49 Sagittarius
2020 Apr 01 18h 58m 33s -31° 58’ 27” 23.47 Sagittarius
2020 Apr 02 18h 58m 54s -32° 01’ 33” 23.46 Sagittarius
2020 Apr 03 18h 59m 12s -32° 04’ 42” 23.45 Sagittarius
2020 Apr 04 18h 59m 31s -32° 07’ 54” 23.43 Sagittarius
2020 Apr 05 18h 59m 49s -32° 11’ 08” 23.42 Sagittarius
2020 Apr 06 19h 00m 06s -32° 14’ 25” 23.40 Sagittarius
2020 Apr 07 19h 00m 23s -32° 17’ 44” 23.39 Sagittarius
2020 Apr 08 19h 00m 38s -32° 21’ 06” 23.38 Sagittarius
2020 Apr 09 19h 00m 52s -32° 24’ 29” 23.36 Sagittarius
2020 Apr 10 19h 01m 05s -32° 27’ 57” 23.35 Sagittarius