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Comet 185P/Petriew

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Comet 185P/Petriew Position

Comet 185P/Petriew is currently in the constellation of Virgo. The current Right Ascension is 13h 52m 28s and the Declination is -13° 54’ 05”.

13h 52m 28s
-13° 54’ 05”

Simplified sky chart showing where Comet 185P/Petriew is right now in the sky with respect to the brightest stars and constellations (see full screen Online Planetarium)

Map showing Comet 185P/Petriew in Virgo on March, 29 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 185P/Petriew is right now (view fullscreen)

RA: 13h 52m 28s
Dec: -13° 54’ 05”
Deep sky finder chart for Comet 185P/Petriew
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet 185P/Petriew?, a page that provides all the information needed to find Comet 185P/Petriew in the sky and additional links to sky charts.

Comet 185P/Petriew Distance

The distance of Comet 185P/Petriew from Earth is currently 623,684,128 kilometers, equivalent to 4.169071 Astronomical Units. Light takes 34 minutes and 40.3863 seconds to travel from Comet 185P/Petriew and arrive to us.

34 minutes and 40.3863 seconds

The following chart shows the distance of Comet 185P/Petriew 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 185P/Petriew 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 185P/Petriew from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Comet 185P/Petriew to Earth

Between January 2013 and December 2100 the closest approach of Comet 185P/Petriew to Earth happens on Tue Nov 7 2056 at a distance of 0.28173183 Astronomical Units, or 42,146,482 kilometers:

Tue Nov 7 2056

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

Comet 185P/Petriew brightness

The current visual magnitude of Comet 185P/Petriew is 23.58.


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 185P/Petriew, 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 185P/Petriew between January 2013 and December 2100

Comet 185P/Petriew 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 185P/Petriew rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 103.9°
Max altitude: 24.6°
Azimuth: 256.1°
Comet 185P/Petriew 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 185P/Petriew 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 185P/Petriew Orbital Elements

The following table lists the orbital elements of Comet 185P/Petriew at epoch 29 June 2013 00:00 UTC (JD: 2456473.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.69933460
Orbit inclination i 14.00710281°
Perihelion distance q 0.93197571 AU
139,421,582 km
Aphelion distance Q 5.26744537 AU
787,998,613 km
Semi-major axis a 3.09971054 AU
463,710,097 km
Orbital period period 5.4600 years
1,993.3343 days
Date of perihelion transit Tp 2012-Aug-13 13:13:58
2,456,153.0514 JD
Next perihelion transit 2018-Jan-27 21:15
2,458,146.3857 JD
Argument of perihelion peri 181.93919392608°
Longitude of the ascending node node 214.09125498944°
Mean anomaly M 57.873637850864°
Mean motion n 0.18060192°/day

Visualization of Comet 185P/Petriew Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet 185P/Petriew with respect of the Sun and the orbits of the major planets. The position of Comet 185P/Petriew 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 185P/Petriew
View Comet 185P/Petriew in the 3D Solar System Simulator

Comet 185P/Petriew 15 Days Ephemeris

The following table lists the ephemerides of Comet 185P/Petriew computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet 185P/Petriew in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2020 Mar 22 13h 56m 57s -14° 23’ 21” 23.60 Virgo
2020 Mar 23 13h 56m 23s -14° 19’ 45” 23.59 Virgo
2020 Mar 24 13h 55m 50s -14° 16’ 05” 23.59 Virgo
2020 Mar 25 13h 55m 15s -14° 12’ 20” 23.59 Virgo
2020 Mar 26 13h 54m 41s -14° 08’ 33” 23.59 Virgo
2020 Mar 27 13h 54m 05s -14° 04’ 41” 23.59 Virgo
2020 Mar 28 13h 53m 29s -14° 00’ 46” 23.59 Virgo
2020 Mar 29 13h 52m 53s -13° 56’ 47” 23.58 Virgo
2020 Mar 30 13h 52m 15s -13° 52’ 45” 23.58 Virgo
2020 Mar 31 13h 51m 38s -13° 48’ 39” 23.58 Virgo
2020 Apr 01 13h 51m 01s -13° 44’ 30” 23.58 Virgo
2020 Apr 02 13h 50m 22s -13° 40’ 18” 23.58 Virgo
2020 Apr 03 13h 49m 45s -13° 36’ 05” 23.58 Virgo
2020 Apr 04 13h 49m 06s -13° 31’ 47” 23.58 Virgo