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🌎 Location: Greenwich, United Kingdom [change]

Comet 7P/Pons-Winnecke

Comet 7P/Pons-Winnecke is currently in the constellation of Leo. The current Right Ascension of Comet 7P/Pons-Winnecke is 11h 47m 20s and the Declination is +18° 32’ 10” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current estimated magnitude of Comet 7P/Pons-Winnecke is 20.31 (JPL).

Summary of key facts about Comet 7P/Pons-Winnecke [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]:

11h 47m 20s
+18° 32’ 10”

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Additional information about Comet 7P/Pons-Winnecke available on TheSkyLive:

Available Resources

Comet 7P/Pons-Winnecke Position and Finder Charts

Below we provide Comet 7P/Pons-Winnecke 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 7P/Pons-Winnecke in Leo on October, 23 2020
Field of view: 50x30 degrees
View fullscreen
Map showing Comet 7P/Pons-Winnecke in Leo on October, 23 2020
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 7P/Pons-Winnecke is right now. Click on the image to see a more detailed fullscreen tracker view.

RA: 11h 47m 20s
Dec: +18° 32’ 10”
Deep sky finder chart for Comet 7P/Pons-Winnecke
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet 7P/Pons-Winnecke?, a page that provides all the information needed to find Comet 7P/Pons-Winnecke in the sky and additional links to sky charts.

Comet 7P/Pons-Winnecke Distance from Earth

The distance of Comet 7P/Pons-Winnecke from Earth is currently 482,357,716 kilometers, equivalent to 3.224362 Astronomical Units. Light takes 26 minutes and 48.9722 seconds to travel from Comet 7P/Pons-Winnecke and arrive to us.

26 minutes and 48.9722 seconds

The following chart shows the distance of Comet 7P/Pons-Winnecke 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 7P/Pons-Winnecke from Earth between January 1900 and January 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 7P/Pons-Winnecke from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Comet 7P/Pons-Winnecke to Earth

Between January 1900 and January 2100, the closest approach of Comet 7P/Pons-Winnecke to Earth happens on Mon Jun 27 1927 at a distance of 0.039404 Astronomical Units, or 5,894,770 kilometers:

Mon Jun 27 1927

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

Comet 7P/Pons-Winnecke brightness

The current visual magnitude of Comet 7P/Pons-Winnecke is 20.31.


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 7P/Pons-Winnecke, 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 7P/Pons-Winnecke between January 1900 and January 2100

Comet 7P/Pons-Winnecke 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 7P/Pons-Winnecke 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: 288.5°

The rise and set times are defined as the time at which the upper limb of Comet 7P/Pons-Winnecke 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 7P/Pons-Winnecke Orbital Elements

The following table lists the orbital elements of Comet 7P/Pons-Winnecke at epoch 08 January 2005 00:00 UTC (JD: 2453379.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.63435216
Orbit inclination i 22.29644218°
Perihelion distance q 1.25623364 AU
187,929,878 km
Aphelion distance Q 5.61504250 AU
839,998,404 km
Semi-major axis a 3.43563807 AU
513,964,141 km
Orbital period period 6.3700 years
2,325.9991 days
Date of perihelion transit Tp 2002-May-15 20:02:02
2,452,410.3348 JD
Next perihelion transit 2008-Sep-26 20:00
2,454,736.3338 JD
Argument of perihelion peri 172.2578798147°
Longitude of the ascending node node 93.426591850112°
Mean anomaly M 149.9998400102°
Mean motion n 0.15477220°/day

Visualization of Comet 7P/Pons-Winnecke Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet 7P/Pons-Winnecke with respect of the Sun and the orbits of the major planets. The position of Comet 7P/Pons-Winnecke 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 7P/Pons-Winnecke
View Comet 7P/Pons-Winnecke in the 3D Solar System Simulator

Comet 7P/Pons-Winnecke 15 Days Ephemeris

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

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2020 Oct 16 11h 35m 09s +19° 21’ 56” 20.43 Leo
2020 Oct 17 11h 36m 54s +19° 14’ 50” 20.42 Leo
2020 Oct 18 11h 38m 36s +19° 07’ 45” 20.40 Leo
2020 Oct 19 11h 40m 20s +19° 00’ 39” 20.38 Leo
2020 Oct 20 11h 42m 05s +18° 53’ 35” 20.36 Leo
2020 Oct 21 11h 43m 49s +18° 46’ 29” 20.35 Leo
2020 Oct 22 11h 45m 33s +18° 39’ 25” 20.33 Leo
2020 Oct 23 11h 47m 17s +18° 32’ 21” 20.31 Leo
2020 Oct 24 11h 49m 03s +18° 25’ 18” 20.29 Leo
2020 Oct 25 11h 50m 48s +18° 18’ 15” 20.28 Leo
2020 Oct 26 11h 52m 33s +18° 11’ 12” 20.26 Leo
2020 Oct 27 11h 54m 20s +18° 04’ 12” 20.24 Leo
2020 Oct 28 11h 56m 06s +17° 57’ 11” 20.22 Leo
2020 Oct 29 11h 57m 51s +17° 50’ 09” 20.20 Leo