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🌎  Greenwich, United Kingdom [change]

Comet 19P/Borrelly

Comet 19P/Borrelly is currently in the constellation of Coma. The current Right Ascension of Comet 19P/Borrelly is 12h 41m 42s and the Declination is +18° 31’ 51” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current estimated magnitude of Comet 19P/Borrelly is 19.43 (JPL).

Summary of key facts about Comet 19P/Borrelly [tip: you can also create a Quick Access page for this data if you access it frequently and would like to have a simpler view]:

12h 41m 42s
+18° 31’ 51”

If you need to access this information frequently for your observations, you can create a simple customized Quick Access page, so that you can easily bookmark it in your browser favorites or add a shortcut to your mobile phones' home screen.

Additional information about Comet 19P/Borrelly available on TheSkyLive:

Available Resources

Comet 19P/Borrelly Position and Finder Charts

Below we provide Comet 19P/Borrelly finder charts showing where the object is right now in the sky with respect to the brightest stars. The first finder chart has a field of view of 50 degrees, while the second one has a field of view of 10 degrees. Click on each finder chart to access a full screen interactive Online Planetarium.

Map showing Comet 19P/Borrelly in Coma on October, 02 2022
Field of view: 50x30 degrees
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Map showing Comet 19P/Borrelly in Coma on October, 02 2022
Field of view: 10x6 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, 60 arcmin wide, showing where Comet 19P/Borrelly is right now. Click on the image to see a more detailed fullscreen tracker view.

RA: 12h 41m 42s
Dec: +18° 31’ 51”
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 from Earth

The distance of Comet 19P/Borrelly from Earth is currently 550,927,261 kilometers, equivalent to 3.682721 Astronomical Units. Light takes 30 minutes and 37.6955 seconds to travel from Comet 19P/Borrelly and arrive to us.

30 minutes and 37.6955 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 0.414131 Astronomical Units, or 61,953,102 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 19.43.


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 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: 71.5°
Max altitude: 57.0°
Azimuth: 288.4°

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 08 February 2021 00:00 UTC (JD: 2459254.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.63795062
Orbit inclination i 29.32371985°
Perihelion distance q 1.30589152 AU
195,358,592 km
Aphelion distance Q 5.90799470 AU
883,823,429 km
Semi-major axis a 3.60694311 AU
539,591,010 km
Orbital period period 6.8504 years
2,502.1156 days
Date of perihelion transit Tp 2022-Feb-01 18:02:34
2,459,612.2518 JD
Next perihelion transit 2028-Dec-08 20:48
2,462,114.3674 JD
Argument of perihelion peri 351.85614313701°
Longitude of the ascending node node 74.311174350706°
Mean anomaly M 308.52730088667°
Mean motion n 0.14387825°/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
2022 Sep 25 12h 30m 42s +19° 42’ 02” 19.28 Coma
2022 Sep 26 12h 32m 17s +19° 31’ 50” 19.30 Coma
2022 Sep 27 12h 33m 51s +19° 21’ 42” 19.32 Coma
2022 Sep 28 12h 35m 26s +19° 11’ 39” 19.34 Coma
2022 Sep 29 12h 37m 00s +19° 01’ 41” 19.36 Coma
2022 Sep 30 12h 38m 33s +18° 51’ 48” 19.38 Coma
2022 Oct 01 12h 40m 06s +18° 41’ 59” 19.40 Coma
2022 Oct 02 12h 41m 39s +18° 32’ 16” 19.43 Coma
2022 Oct 03 12h 43m 12s +18° 22’ 36” 19.45 Coma
2022 Oct 04 12h 44m 44s +18° 13’ 03” 19.47 Coma
2022 Oct 05 12h 46m 14s +18° 03’ 33” 19.49 Coma
2022 Oct 06 12h 47m 45s +17° 54’ 08” 19.51 Coma
2022 Oct 07 12h 49m 17s +17° 44’ 48” 19.53 Coma
2022 Oct 08 12h 50m 48s +17° 35’ 35” 19.54 Coma